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  • 1
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Tokyo : National Inst. of Polar Research
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    Signatur: ZSP-589-3
    In: NIPR Arctic Data Reports
    Materialart: Schriftenreihen ausleihbar
    Seiten: 46 S. : überw. graph. Darst.
    Serie: NIPR Arctic Data Reports 3
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 2
    facet.materialart.
    Unbekannt
    Canberra ; 132.1984-147.2002
    Signatur: ZSP-123
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 3
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Kingston : Australian Antarctic Division
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    Signatur: ZSP-123-139
    In: ANARE Reports
    Materialart: Schriftenreihen ausleihbar
    Seiten: VII, 224 S. : graph. Darst.
    ISBN: 0642253382
    Serie: ANARE Reports 139
    Sprache: Englisch
    Zweigbibliothek: AWI Bibliothek
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  • 4
    Monographie ausleihbar
    Monographie ausleihbar
    New York [u.a.] : Wiley
    Signatur: M 93.0159 ; AWI A12-95-0120-1 ; AWI A12-95-0120-2 ; MOP 272 / Mitte
    Materialart: Monographie ausleihbar
    Seiten: XIV, 351 S.
    ISBN: 0471035092
    Serie: A Wiley-Interscience publication
    Sprache: Englisch
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Standort: MOP - Bitte bestellen
    Zweigbibliothek: GFZ Bibliothek
    Zweigbibliothek: AWI Bibliothek
    Zweigbibliothek: AWI Bibliothek
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  • 5
    Signatur: ZSP-403-284
    In: Jare Data Reports
    Materialart: Schriftenreihen ausleihbar
    Seiten: 16 S. : überw. graph. Darst. u. Ill.
    Serie: Jare Data Reports 284 : Marine Biology 32
    Sprache: Englisch
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 6
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Tokyo : Inst.
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    Signatur: ZSP-403-280
    In: Jare Data Reports
    Materialart: Schriftenreihen ausleihbar
    Seiten: 54 S. : überw. graph. Darst.
    Serie: Jare Data Reports 280 : Seismology 39
    Sprache: Englisch
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 7
    Signatur: ZSP-403-283
    In: Jare Data Reports
    Materialart: Schriftenreihen ausleihbar
    Seiten: 34 S. : überw. graph. Darst. u. Ill.
    Serie: Jare Data Reports 283 : Earth Science 6
    Sprache: Englisch
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 8
    Monographie ausleihbar
    Monographie ausleihbar
    Potsdam : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Signatur: AWI A11-07-0057
    Beschreibung / Inhaltsverzeichnis: An Airborne Mobile Aerosol Lidar (AMALi) was constructed and built at Alfred-Wegener-Institute for Polar and Marine Research (AWI) in Potsdam, Germany for the lower tropospheric aerosol and cloud research under tough arctic conditions. The system was successfully used during two AWI airborne field campaigns, ASTAR 2004 and SVALEX 2005, performed in vicinity of Spitsbergen in the Arctic. The novel evaluation schemes, the Two-Stream Inversion and the Iterative Airborne Inversion, were applied to the obtained lidar data. Thereby, calculation of the particle extinction and backscatter coefficient profiles with corresponding lidar ratio profiles characteristic for the arctic air was possible. The comparison of these lidar results with the results of other in-situ and remote instrumentation (ground based Koldewey Aerosol Raman Lidar (KARL), sunphotometer, radiosounding, satellite imagery) allowed to provided clean contra polluted (Arctic Haze) characteristics of the arctic aerosols. Moreover, the data interpretation by means of the ECMWF Operational Analyses and small-scale dispersion model EULAG allowed studying the effects of the Spitsbergens orography on the aerosol load in the Planetary Boundary Layer. With respect to the cloud studies a new methodology of alternated remote AMALi measurements with the airborne in-situ cloud optical and microphysical parameters measurements was proved feasible for the low density mixed-phase cloud studies. An example of such approach during observation of the natural cloud seeding (feeder-seeder phenomenon) with ice crystals precipitating into the lower supercooled stratocumulus deck were discussed in terms of the lidar signal intensity profiles and corresponding depolarisation ratio profiles. For parts of the cloud system characterised by almost negligible multiple scattering the calculation of the particle backscatter coefficient profiles was possible using the lidar ratio information obtained from the in-situ measurements in ice-crystal cloud and water cloud.
    Materialart: Monographie ausleihbar
    Seiten: 100 S. , Ill., graph. Darst.
    Zweigbibliothek: AWI Bibliothek
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  • 9
    Signatur: ZSP-168-299
    In: Berichte zur Polarforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: IV, 326 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Serie: Berichte zur Polarforschung 299
    Sprache: Englisch
    Standort: AWI Lesesaal
    Zweigbibliothek: AWI Bibliothek
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  • 10
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/21
    In: CRREL Report, 78-21
    Beschreibung / Inhaltsverzeichnis: This study investigates the possibility of providing estimates of the time of occurrence and length of the freezing season for any location in East and West Germany by using the average Januavy air temperature (AJ AT) as an index. The results indicate that reliable values of the mean freezing index can be obtained from the AJAT relationships which are developed for Germany. This association is further verified using data from the northeastern part of the U.S., and the AJ AT is then used to determine the average starting and ending dates (and hence the probable length) of the freezing season for stations in Germany. The AJ AT and the average dates of snowfall occurrence for numerous locations in the U.S. and Germany are also correlated. Interrelationships between these parameters and the average number of days with snow on the ground for stations up to 3000 m in elevation in Germany are examined. A detailed AJ AT map for East and West Germany, in which data from 134 stations, latitude, altitude and regional influences are considered, is developed in order to make the relationships usable. A historical review of the literature on snow studies in Germany and a brief discussion of snow-cover interpretation by satellite photography are included
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 48 Seiten , Illustrationen , 1 Karte
    Serie: CRREL Report 78-21
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Historical literature review Relationships between midwinter temperature and freezing season Mean freezing index 4 Average January air temperature U.S. comparative study Correlation of AJAT and duration of freezing season Relationships between average January air temperature and snow conditions U.S. relationships German relationships Mapping of average January air temperatures Analysis of observed AJ AT data Development of detailed maps Application and discussion Examples Influence of vegetation Literature cited Appendix A. interpretation of snow cover by satellite Appendix B. Contour, station elevation and Aj AT maps for East and West Germany
    Standort: AWI Archiv
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  • 11
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/10
    In: CRREL Report, 78-10
    Beschreibung / Inhaltsverzeichnis: The compressibility of wet snow is described in terms of pressure melting and nonlinear viscous deformation at grain contacts. The results of experiments with different salinities and liquid water contents are compared with computed densities. The decreasing compressibility of wet snow with increasing salinity and decreasing liquid content is quantified and explained. Simultaneous particle growth and the doubly charged layer at phase boundaries are included in the model. The results show that the density of wet snow increases approximately as a power of time but is highly dependent on the stress, initial particle size, liquid water content, and ionic impurity content of the snow.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 23 Seiten , Illustrationen
    Serie: CRREL Report 78-10
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Experimental procedure Grain growth Stressed particle contacts Fluid pressure Packing geometry Temperature distribution and heat flow Fluid and impurity flows Results The liquid film Conclusions Literature cited
    Standort: AWI Archiv
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  • 12
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/16
    In: CRREL Report, 78-16
    Beschreibung / Inhaltsverzeichnis: A model investigation of drifting snow conditions was conducted in a hydraulic flume using a sand-water analog. Model results were evaluated to define modeling parameters that would allow quantitative correlation between measured prototype drift conditions and the model. The modeled structure was the standard plan snow fence designed by the Wyoming Highway Department and installed along Interstate Highway 80 in 1971. The performance of this system was documented by the Rocky Mountain Forest and Range Experiment Station of the U.S. Forest Service. Models of the fence were constructed for three heights and two geometric scales. Geometric scaling was based on terrain roughness and boundary layer thickness considerations, while velocity scaling was based on particle fall velocity and threshold of motion characteristics. Simulation of the atmospheric boundary layer was found to be of primary importance. Velocity scaling analysis suggested the use of a 'significant wind' concept based on a combination of velocity magnitude and frequency. Similarity of precipitation rate was not essential, and could be altered within limits to adjust the time scale. The response of the model to the shape of model elements was significant. Although the model is distorted and inexact similarity is achieved, it appears useful on a practical basis.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 26 Seiten , Illustrationen
    Serie: CRREL Report 78-16
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Background Experimental design Similitude considerations The model Model operation Results Velocity Fence height Porosity Model correlation Summary and conclusions Recommeqdations for future work Literature cited Appendix A
    Standort: AWI Archiv
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  • 13
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/15
    In: CRREL Report, 78-15
    Beschreibung / Inhaltsverzeichnis: This report first discusses the general approach for calculating the horizontal forces an ice cover exerts on a structure. Ice force determination consists of two parts: (1) the analysis of the in-plane forces assuming that the ice cover remains intact and (2) the use of a failure criterion, since an ice force cannot be larger than the force capable of breaking up the ice cover. For an estimate of the largest ice force, an elastic plate analysis and a failure criterion are often sufficient. A review of the literature revealed that, in the majority of the analyses, it is assumed that the failure load is directly related to a 'crushing strength' of the ice cover. However, observations in the field and tests in the laboratory show that in some instances the ice cover fails by buckling. This report reviews the ice force analyses based on the buckling failure mechanism and points out their shortcomings. The report then presents a new method of analysis which is based on the buckling mechanism
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 13 Seiten , Illustrationen
    Serie: CRREL Report 78-15
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction and statement of problem Review of relevant analyses and tests Determination of the largest ice force on an isolated structure Preliminary remarks The buckling analysis of a floating wedge Proposed method to determine Literature cited
    Standort: AWI Archiv
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  • 14
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/14
    In: CRREL Report, 78-14
    Beschreibung / Inhaltsverzeichnis: The analytical solution and the numerical study of the eigenvalue problem for determining the buckling pressure of an infinite elastic plate floating on water and stressed uniformly along the periphery of an internal hole is presented. The boundary conditions considered are the clamped-, simple-, and free-edge conditions. Small buckling pressure occurs only for the free-edge condition. The shape of the deflection for the free-edge condition suggests that buckling is an important mechanism of failure.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 55 Seiten , Illustrationen
    Serie: CRREL Report 78-14
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction 1. The problem 2. Abstract of the result Part I. Fundamental solutions 3. Fuchsian type solutions 4. Contour integral solution 5. Integration of the integral solution 6. Fundamental solutions for α = 1 7. Fundamental solutions for α = 0 8. Eigenvalues for α = 0 9. Fundamental solutions for α 〉 1 Part II. Asymptotic expansions 10. Asymptotic expansion for 0 〈 α ⩽1 11. Asymptotic expansion for 1 ≦ α ≦ 2 12. Asymptotic expansion for 2 ≦ α ≦ ∞ Part III. Eigenvalues 13. Range of eigenvalues 14. Eigenvalues for the free-edge condition 15. Eigenvalues for the clamped-edge and simple-edge conditions 16. Deflection Acknowledgement Literature cited Appendix A. Analytical continuation at the singular point Appendix B. Tensorial transformations Appendix C. Comparison of the semi-infinite plate buckling with the asymptotic buckling
    Standort: AWI Archiv
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  • 15
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/12
    In: CRREL Report, 78-12
    Beschreibung / Inhaltsverzeichnis: Road test sections of membrane-enveloped silt and clay soils overlain with asphalt cement concrete were subjected to repetitive dynamic plate-bearing loadings to determine their strength variations during freeze-thaw cycles. The recoverable surface deformations in the load deflection bowl were continuously measured during the loading cycles and analyzed using the Chevron layered elastic computer program to obtain the in situ resilient deformation modulus of the various section layers at different stages of the freeze-thaw cycles. The resilient stiffness of the pavement system (the total load per unit of resilient load plate deflection) was also calculated for the various freeze-thaw conditions. The modulus values of the asphalt cement concrete varied inversely with its temperature by an order of magnetide (90,000 psi to 1,300,000 psi). The resilient stiffness of the pavement system varied in the same manner by nearly a factor of eight (228.4 kips/in. to 1740.2 kips/in.). Despite the wide strength variations of the sections during freeze-thaw cycles, membrane-enveloped fine-grained soils can be utilized instead of granular materials as base and subbase layers in flexible pavements in cold regions where moisture migration is a major concern. Moisture migration did not occur at saturation levels up to 75%, thus there was no strength loss during thawing.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 24 Seiten , Illustrationen
    Serie: CRREL Report 78-12
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Conversion factors: U.S.customary to metric units of measurement Introduction Freeze-thaw system Construction materials Controlled environment test section Outdoor sections Temperature monitoring instrumentation Repetitive plate bearing test apparatus Test results and analyses Conclusions Literature cited
    Standort: AWI Archiv
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  • 16
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/13
    In: CRREL Report, 78-13
    Beschreibung / Inhaltsverzeichnis: Field observations of the growth fabrics of the fast and near-fast ice along the coasts of the Beaufort and Chukchi Seas show that, at depths of more than 60 cm below the upper ice surface, the sea ice crystals show striking alignments within the horizontal plane. At one site this alignment was well developed at a depth of 15 cm and in all cases the degree of preferred orientation increased with depth, with the strongest orientations occurring at the bottom of the ice sheet. In general the c-axes of the crystals were aligned roughly E-W parallel to the coast. In the vicinity of islands the alignment roughly paralleled the outlines of the islands and in narrow passes between islands the alignment paralleled the channel. Our observations, as well as similar observations made in the Kara Sea by Cherepanov, can be explained if it is assumed that the c-axes of the crystals are aligned parallel to the 'long-term' current direction at the sea ice/sea water interface. The alignments are believed to be the result of geometric selection among the growing crystals, with the most favored orientation being that in which the current flows normal to the (0001) plates of ice that make up the dendritic ice/water interface characteristics of sea ice. It is hypothesized that current flow in this direction reduces the thickness of the solute boundary layer as well as the salinity in the liquid at the interface. This lowered salinity allows crystals in the favored orientation to extend farther into the melt than neighboring crystals with less favored orientations. In addition the current tends to induce a continuous flux of supercooled seawater against the sides of the crystals that extend ahead of the interface.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 29 Seiten , Illustrationen
    Serie: CRREL Report 78-13
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Locale and techniques Observations Vertical variations in crystal orientation Regional variations in crystal orientation Summary of observations Causes Initial ice skim Earth’s magnetic field Currents Conclusions and consequences Literature cited
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
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  • 17
    Signatur: ZSP-201-78/28
    In: CRREL Report, 78-28
    Materialart: Schriftenreihen ausleihbar
    Seiten: x, 112 Seiten , Illustrationen
    Serie: CRREL Report 78-28
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Conversion factors Introduction Descriptions of road test sections Test equipment and procedures Field repetitive plate bearing tests Data analysis General Layered-elastic analysis of the pavement systems Statistical analysis Flexural analysis Summary and conclusions Literature cited Appendix A: Resilient surface deflections for the test points
    Standort: AWI Archiv
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  • 18
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/22
    In: CRREL Report, 78-22
    Beschreibung / Inhaltsverzeichnis: Special environmental factors that influence the design, laying and maintenance of undersea pipelines and cables in polar waters are described. Various approaches to the protection of submarine pipes and cables are considered, and prime emphasis is given to burial techniques for shallow water. A wide range of methods for trenching and burying are discussed, and technical data are given.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 36 Seiten , Illustrationen
    Serie: CRREL Report 78-22
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Conversion factors Introduction Types of pipelines and cables Potential hazards to pipelines and cables Areas of concern Waterdepth Sea ice Icebergs and ice islands Submarine permafrost Ice gouging Seabed erosion by water jets Protection methods Protection of unburied pipes and cables Protection by burial Backhoe digging Wireline equipment Plowing and ripping from the surface Plowing and ripping by self-propelled seabed vehicles Bucket ladder dredges Suction dredging Conventional cutterhead dredges Low pressure water jetting Bottom-traveling cutterhead dredges Explosive methods Novel methods Disc saws, wheel ditchers and milling drums Ladder trenchers and chain saws Repetitive impulse devices High pressure water jets Flame jets and plasma torches Electrical discharge and electromagnetic radiation Chemical methods Conclusions Literature cited
    Standort: AWI Archiv
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  • 19
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-77/27
    In: CRREL Report, 77-27
    Beschreibung / Inhaltsverzeichnis: The spectral reflectance of natural snow in the range of 0.20- to about 0.40-micrometers wavelengths was studied in the laboratory using both continuous spectral scanning and fixed bandpass measurements. White barium sulfate pressed powder was used as a standard for comparison. The reflectance of fresh snow was found to be very high (usually nearly 100%) and only weakly wavelength dependent from 0.24 micrometers to the visible range. In the 0.20- to 0.24-micrometers portion of the spectrum, the reflectance was found to be quite erratic. Possible reasons for the irregularities in reflectance measurements are discussed.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 19 Seiten , Illustrationen
    Serie: CRREL Report 77-27
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Experimental procedure Snow collection Spectrophotometric methods Data analysis Potential sources of error Presentation of results Continuous-scan measurements Comparison of sequential bandpass and continuous-scan measurements Theoretical calculations Discussion of results Differences in amplitude of reflectance measurements Irregularities in the shape of spectral reflectance curves The true spectral reflectance of snow in the ultraviolet region Conclusions Literature cited Appendix A. Absolute reflectance values of pressed BaSO4 powder
    Standort: AWI Archiv
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  • 20
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-77/23
    In: CRREL Report, 77-23
    Beschreibung / Inhaltsverzeichnis: This report discusses the relationship between an architect and a behavioral scientist. Some of the discussion applies to this cooperative work for design of buildings. The bulk, however, relates to the cooperation of architect and behavioral scientist while conducting research. Examples from collaborative research at Alaskan military installations are cited which demonstrate the roles and contributions of the two disciplines.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 8 Seiten , Illustrationen
    Serie: CRREL Report 77-23
    Sprache: Englisch
    Zweigbibliothek: AWI Bibliothek
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  • 21
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-77/21
    In: CRREL Report, 77-21
    Beschreibung / Inhaltsverzeichnis: Cold weather limits the successful application of built-up roofing, but often a roof installation must be completed late in the fall or in the winter. The loose-laid protected membrane roof with a synthetic sheet membrane can be installed in the middle of the winter with complete reliability. A synthetic membrane is traditionally more expensive than built-up roofing (rising crude oil prices, however, have reversed this condition), but it has two special features besides its suitability for winter installation: it can be placed on a damp deck, if necessary, and, being losse-laid, it does not split because of deck movement. This report documents information on the installation of two roofs in Anchorage, Alaska, during January and February 1972, including a discussion of the necessary snow removal from the bare deck and the use of portable shelters for preparing the lap joints between sheets during very cold weather. The winter installation caused no special construction problems and the advantages of the synthetic membrane make it an attractive alternative to built-up roofing. The cost of loose-laid protected membrane roofs in Alaska was, in 1972, nearly $300 per square ($28/sq.m), including insulation. Prices are rising as labor costs rise and as more insulation is specified.
    Materialart: Schriftenreihen ausleihbar
    Seiten: 5 Seiten , Illustrationen
    Serie: CRREL Report 77-21
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction The protected membrane roof Winter construction considerations Construction costs Conclusion
    Standort: AWI Archiv
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  • 22
    Schriftenreihen ausleihbar
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    Hanover, NH : U. S. Cold Regions Res. and Eng. Laboratory
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    Signatur: ZSP-201-77/20
    In: CRREL Report, 77-20
    Materialart: Schriftenreihen ausleihbar
    Seiten: ix, 48 S. : graph. Darst.
    Serie: CRREL Report 77-20
    Anmerkung: CONTENTS Abstract Preface Summary Symbols Introduction Background Objectives Experimental procedures Principles of electromagnetic resistivity surveying Resistivity of earth materials Radiowave propagation within the earth-ionosphere waveguide Radiowave interaction with the earth Instrumentation Airborne Ground Methods Experimental procedures Test site Survey traverses Results Study no. 1 — standard survey Study no. 2 — topographic and resistive effects upon £ xq and £ z j Study no. 3 — general effects of altitude upon geologic resolution Study no. 4 — ground level study of phase and amplitude effects The standard survey reevaluated Conclusions and final remarks . Literature cited Appendix: Glossary of geologic terms used ILLUSTRATIONS Figure Electromagnetic field vectors of a radiowave propagating over the earth’s su rface Resistivity ranges of most earth materials Two radiowave propagation modes in the earth-ionosphere waveguide Coverage for well-known LF stations Simply layered flat earth model used for deriving the definitions of apparent resistivity and also used in modern data interpretation techniques Skin depth of radiowaves as a function of frequency for various values of resistivity
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  • 23
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/19
    In: CRREL Report, 77-19
    In: Mechanics of cutting and boring, Part VI
    Beschreibung / Inhaltsverzeichnis: Abstract: The report deals with forces and power levels in cutting machines having adisc or drum that rotates about an axis perpendicular to the direction of advance. The forces on individual cutting tools are related to position on the rotor and to characteristics such as tool layout, rotor speed, rotor size, machine advance speed, and rotor torque. Integration leads to expressions for force components acting on the rotor axis, taking into account tool characteristics, cutting depth of the rotor, and rotor torque. These provide estimates of tractive thrust and thrust normal to the primary free surface. For self-propelled machines, this leads to considerations of traction, normal reaction, weight and balance, and power/weight ratios. Specific energy consumption is analyzed and related to machine characteristics and strength ofthe material being cut. Power per unit working area is discussed, and data for existing machines are summarized. Power requirements for ejection ofcuttings are analyzed, and the hydrodynamic resistance on underwater cuttings is treated. A number of worked examples are given to illustrate the principles discussed in the report.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 36 Seiten , Illustrationen
    Serie: CRREL Report 77-19
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Foreword Introduction Terminology Forces on individual cutters Torque force and tool force Forces on the rotor axis Tractive thrust and down thrust Alternative tool force formulations Vehicle traction Power/weight ratio Weight and balance Force, torque, speed and power Specific energy Efficiency and performance index Power density Power requirements for ejection of cuttings Hydrodynamic resistance in underwater cutting
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  • 24
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/18
    In: CRREL Report, 77-18
    Beschreibung / Inhaltsverzeichnis: Abstract: Models originally developed to describe the arching and the movement of granular materials through hoppers or chutes are applied to the arching and drift of pack ice in straits and gulfs having lengths of 50 to 500 km. Verification of the usefulness of the models is attempted by making comparisons with ice deformation patterns as observed via satellite imagery in the Bering Strait region and in Amundsen Gulf. The results are encouraging in that there is good correspondence between observed arching and lead patterns and those predicted by theory. In addition, values determined via the model for the angle of internal friction (≈ 30° to 35°) and the cohesive strength per unit thickness (≈ 2000 N/m) are similar to values obtained by other approaches. It is estimated that if the wind velocity parallel to the Bering Strait exceeds ≈ 6 m/s, there will be ice flow through the strait.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 11 Seiten , Illustrationen
    Serie: CRREL Report 77-18
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Theory Limiting span of an arch Flow of pack ice through converging channels Stoppage of flow Applications St. Lawrence Amundsen Gulf Bering Strait Conclusion References
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  • 25
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/16
    In: CRREL Report, 77-16
    Beschreibung / Inhaltsverzeichnis: A brief discussion is given of the ways an icebreaker breaks ice. Since the icebreaking process is so complex, the solution of a mathematical model does not appear to be feasible. As an alternative, it is suggested that physical models be used to design icebreakers. The appropriate scaling laws for physical models are developed and their practical limitation discussed.
    Materialart: Schriftenreihen ausleihbar
    Seiten: ii, 9 Seiten , Illustrationen
    Serie: CRREL Report 77-16
    Sprache: Englisch
    Standort: AWI Archiv
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  • 26
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    [Tokyo] : Japan Aerospace Exploration Agency
    Dazugehörige Bände
    Signatur: ZSP-405a-08-0030
    In: JAXA Research and Development Report
    Materialart: Schriftenreihen ausleihbar
    Seiten: 52 S. : graph. Darst.
    Serie: JAXA Research and development report RR-05-007E
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 27
    Signatur: AWI P9-83-0971c
    Materialart: Monographie ausleihbar
    Seiten: 32 S. : graph. Darst., Ktn.
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  • 28
    Monographie ausleihbar
    Monographie ausleihbar
    Katowice : Univ.
    Signatur: AWI P9-83-0971b
    Materialart: Monographie ausleihbar
    Seiten: 50 S. : graph. Darst., Ktn.
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  • 29
    Monographie ausleihbar
    Monographie ausleihbar
    Longyearbyen : Governor of Svalbard
    Signatur: AWI P9-98-0004
    Materialart: Monographie ausleihbar
    Seiten: 27 S. : Ill.
    ISBN: 8291850089
    Sprache: Englisch
    Zweigbibliothek: AWI Bibliothek
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  • 30
    Monographie ausleihbar
    Monographie ausleihbar
    Barcelona : Circulo de Lectores
    Signatur: AWI S5-78-0001
    Materialart: Monographie ausleihbar
    Seiten: 684 S.
    ISBN: 8422608863
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  • 31
    Signatur: ZSP-553-164,5
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 66 S., 7 Taf. : Ill., graph. Darst., Kt.
    Serie: Meddelelser om Grønland 164,5
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 32
    Signatur: ZSP-553-159,10
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 45 S. : Ill., Kt.
    Serie: Meddelelser om Grønland 159,10
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 33
    Monographie ausleihbar
    Monographie ausleihbar
    København : Reitzel
    Dazugehörige Bände
    Signatur: ZSP-553-159,11
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 74 S., XXI Taf. : zahlr. Ill.
    Serie: Meddelelser om Grønland 159,11
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 34
    Signatur: ZSP-553-164,6 ; AWI P8-88-0281
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 105 S., 4 Taf. : Ill., Kt.
    Serie: Meddelelser om Grønland 164,6
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 35
    Signatur: ZSP-180-A30
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Monographie ausleihbar
    Seiten: IV, 167 S. : graph. Darst., Kt.
    ISSN: 0947-7128
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe A, Meteorologie 30
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 36
    Signatur: ZSP-180-B33
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Monographie ausleihbar
    Seiten: II, 119 S. : graph. Darst., Kt.
    ISSN: 0947-7136
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe B, Ozeanographie 33
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 37
    Monographie ausleihbar
    Monographie ausleihbar
    Kleinmachnow : Landesamt für Geowissenschaften und Rohstoffe
    Signatur: AL 28 ; AL 25 ; AWI Atl-98-0129
    Materialart: Monographie ausleihbar
    Seiten: 80 S. : zahlr. Kt.
    Ausgabe: 1. Aufl.
    ISBN: 3000022112
    Klassifikation:
    Regionale Geologie
    Sprache: Deutsch
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Standort: Kompaktmagazin oben
    Zweigbibliothek: GFZ Bibliothek
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  • 38
    Monographie ausleihbar
    Monographie ausleihbar
    Köln : Inst. für Geophysik und Meteorologie
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    Signatur: ZSP-560-106
    In: Mitteilungen aus dem Institut für Geophysik und Meteorologie der Universität zu Köln
    Materialart: Monographie ausleihbar
    Seiten: 118 S. : graph. Darst.
    ISSN: 0069-5882
    Serie: Mitteilungen aus dem Institut für Geophysik und Meteorologie der Universität zu Köln 106
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 39
    Monographie ausleihbar
    Monographie ausleihbar
    Potsdam : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Signatur: AWI Bio-09-0032
    Materialart: Monographie ausleihbar
    Sprache: Deutsch
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  • 40
    Monographie ausleihbar
    Monographie ausleihbar
    Potsdam : Alfred-Wegener-Inst. für Polar- und Meeresforschung
    Signatur: AWI Bio-09-0031
    Materialart: Monographie ausleihbar
    Seiten: 89 S. : Ill., graph. Darst.
    Sprache: Deutsch
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  • 41
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Tokyo : National Inst. of Polar Research
    Dazugehörige Bände
    Signatur: ZSP-589-6
    In: NIPR Arctic Data Reports
    Materialart: Schriftenreihen ausleihbar
    Seiten: 112 S. : überw. graph. Darst.
    Serie: NIPR Arctic Data Reports 6
    Standort: AWI Lesesaal
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  • 42
    Signatur: AWI G2-07-0005 ; PIK N 454-16-0507
    Beschreibung / Inhaltsverzeichnis: In global coastal zones, the major fabric of goods and services for human welfare as well as global changes are extraordinarily visible. They are shaped by natural Earth System processes on a planetary scale, which are reflected in a continuously adapting coastal environment. Now, in the 'Anthropocene', human society is a greater catalyst for change - impacting and modifying coastal processes. This book synthesizes knowledge on coastal and riverine material fluxes, biogeochemical processes and indications of change, and the human influence, before looking at future research and management needs. It is a milestone rather than a destination on the journey which continues under the new International Geosphere-Biosphere Programme (IGBP), the International Human Dimensions Programme on Global Environmental Change (IHDP) and the LOICZ (Land-Ocean Interactions in the Coastal Zone) Project.
    Materialart: Monographie ausleihbar
    Seiten: XIX, 231 S. : Ill., graph. Darst., Kt.
    ISBN: 3540254501 , 978-3-540-25450-8
    Serie: Global Change - the IGBP series
    Anmerkung: Contents: 1 The Coastal Zone - a Domain of Global Interactions. - 1.1 Introduction. - 1.2 What is the Coastal Zone?. - 1.3 System and Human Attributes of the Coastal Zone. - 1.3.1 Coastal Ecosystems. - 1.3.2 Variability in Coastal Ecosystems. - 1.4 Changes to the Coastal Zone. - 1.4.1 Pressures on the Coastal Zone from Natural Forcing. - 1.4.2 Pressures on the Coastal Zone from Human Forcing. - 1.4.3 Economics and Coastal Zone Change. - 1.5 Measuring Change and Status of the Coastal Zone at the Global Scale - LOICZ Approaches and Tools. - 1.5.1 Biogeochemical Fluxes of C, N and P. - 1.5.2 Typology Approach to Scaling and Globalisation. - 1.5.3 Socio-economic Evaluations. - 1.5.4 River Basins - Material Fluxes and Human Pressures. - 1.5.5 Key Thematic Issues. - 1.6 Responses to Change. - References. - 2 Dynamics of the Coastal Zone. - 2.1 Introduction. - 2.2 Impacts of Local, Regional and Global Sea-level Fluctuations. - 2.2.1 Processes and Mechanisms: Coastal Dynamics. - 2.2.2 Evolving Morphology and Boundary Conditions. - 2.2.3 Coastal Storms and Coastal Protection. - 2.3 Changes in the Flux of Water and Sediment. - 2.3.1 Processes and Mechanisms. - 2.3.2 Sediment Flux to the Coast: Climate versus Humans. - 2.4 Estuarine Interactions. - 2.5 Groundwater Inputs to the Coastal Zone. - 2.5.1 A New Understanding. - 2.5.2 Advective Porewater Exchange. - 2.5.3 Magnitude of Submarine Groundwater Discharge. - 2.5.4 Biogeochemical Implications. - 2.6 Influence of Human Activities on Material Fluxes. - 2.6.1 The Role of Dams and Other Land Transformations. - 2.6.2 Ecosystem Health and Diversity. - 2.6.3 The Vitality of Coastal Wetlands, Mangroves and Reefs. - 2.6.4 Sediment Dispersion and Grain Size Effects. - 2.7 Summary. - 2.7.1 Impacts of Local, Regional and Global Sea-level Fluctuations. - 2.7.2 Sediment Flux to the Coast. - 2.7.3 Dynamics at the Estuarine Interface. - 2.7.4 Groundwater Inputs. - 2.7.5 The Human Dynamic. - References. - 3 C, N, P Fluxes in the Coastal Zone. - 3.1 Introduction. - 3.1.1 The Coastal Zone and Fluxes. - 3.1.2 Elemental Cycles and Fluxes. - 3.2 Estimates of C, N and P Fluxes in the Coastal Zone. - 3.2.1 Current Information Availability. - 3.2.2 Fluxes and Variability of Fluxes. - 3.2.3 Non-conservative Fluxes: Their Distributions, Relationships to Other Variables and Biogeochemical Interpretation. - 3.3 Classification of Coastal Fluxes. - 3.3.1 Budget Sites and Coastal Areas: Sizes, Scales and Representation. - 3.3.2 Land versus Ocean Dominance of Biogeochemical Processes: Dynamic Factors in Coastal Classification. - 3.3.3 Natural and Anthropogenic Factors: Pristine to Highly Altered. - 3.3.4 Budget Sites as Representatives of the Global System. - 3.3.5 Typology for Flux Extrapolation. - 3.3.6 Prospects for Future Fluxes and Their Assessment. - 3.4 Conclusions. - 3.4.1 Biogeochemical Systems and Nutrient Loads. - 3.4.2 Scale, Resolution and Generalisation. - 3.4.3 Infrastructure and Methodology. - 3.5 Recommendations. - 3.5.1 Concepts and Methodology. - References. - 4 The Catchment to Coast Continuum. - 4.1 Introduction. - 4.1.1 The LOICZ-Basins Approach. - 4.2 South America. - 4.2.1 Overview of South American River Catchment-Coastal Zone Systems - Geography and Climate. - 4.2.2 Assessment of Land-based Drivers, Pressures and Coastal Impacts. - 4.2.3 State Changes, Impacts and Future Trends. - 4.2.4 Conclusions - South America . -4.3 Africa. - 4.3.1 Overview of African River Catchment - Coastal Zone Systems - Geography and Climate. - 4.3.2 Assessment of Land-based Drivers, Pressures and Coastal Impacts. - 4.3.3 State Changes, Impacts and Future Trends. - 4.3.4 Conclusions - Africa. - 4.4 East Asia. - 4.4.1 Overview of East Asian River Catchment - Coastal Zone Systems - Geography and Climate. - 4.4.2 Assessment of Land-based Drivers, Pressures and Coastal Impacts. - 4.4.3 State Changes, Impacts and Future Trends. - 4.4.4 Conclusions - East Asia. - 4.5 Russian Arctic. - 4.5.1 Overview of Russian Arctic River Catchment - Coastal Zone Systems - Geography and Climate. - 4.5.2 Assessment of Land-based Drivers, Pressures and Coastal Impacts. - 4.5.3 State Changes, Impacts and Future Trends. - 4.5.4 Conclusions - Russian Arctic. - 4.6 Europe - Catchment-Coast Interactions. - 4.6.1 Overview of the European Coastal Zone/Catchment Systems. - 4.6.2 Assessment of Land-based Drivers, Pressures and Coastal Impacts. - 4.6.3 Conclusions - Europe. - 4.7 Towards Coupled Coastal and River Catchment Management: DPSIR Application into Scenarios for Europe. - 4.7.1 Introduction. - 4.7.2 Scenarios and Coastal Futures. - 4.7.3 Application of Scenarios: an Example for Europe. - 4.8 Summary and Conclusions. - 4.8.1 Catchments and Changes. - 4.8.2 Information Gaps. - References. - 5 Synthesis of Main Findings and Conclusions. - 5.1 Global Change and Sustainable Use of Earth's Coastal Zones. - 5.2 Progress in Meeting IGBP-LOICZ Goals. - 5.3 Key Findings. - 5.3.1 The Coastal Domain. - 5.3.2 River Basins: Assessment of Human-induced Land-based Drivers and Pressures. - 5.3.3 Material Fluxes. - 5.3.4 Biogeochemical Budgets. - 5.4 Now and into the Future. - 5.4.1 River Basin Factors. - 5.4.2 Material Fluxes. - 5.4.3 Biogeochemical Budgets. - 5.5 The LOICZ Contribution. - 5.6 Implications for Management. - 5.7 The Future of LOICZ. - 5.7.1 The Future Challenges for LOICZ. - 5.7.2 The Potential for LOICZ to Contribute to Future Coastal Management Challenges. - References. - Appendix. - A.1 LOICZ Reports and Studies and Key Publications. - A.2 Acronyms and Abbreviations. - Index.
    Standort: A 18 - Bitte bestellen
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  • 43
    Monographie ausleihbar
    Monographie ausleihbar
    Cambridge [u.a.] : Cambridge Univ. Press
    Signatur: AWI S3-07-0042
    Materialart: Monographie ausleihbar
    Seiten: XIII, 278 S. : Ill, graph. Darst.
    Ausgabe: second ed.
    ISBN: 9780521607930 , 0-521-60793-0
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  • 44
    Signatur: S 99.0054(97) ; ZSP-320(B,97)
    In: Geologisches Jahrbuch
    In: Polar issue
    Materialart: Schriftenreihen ausleihbar
    Seiten: 409 S. : Ill., graph. Darst. + 1 Beil., 4 Kt.-Beil.
    ISBN: 351095923X
    Serie: Geologisches Jahrbuch : B, Regionale Geologie Ausland 97
    Klassifikation:
    Regionale Geologie
    Anmerkung: Contents: Preface / Hans-Jürgen Paech. - Palaeomagnetic and geochronological study of late Pan-African and Mesozoic igneous and metamorphic rocks from Central Dronning Maud Land, East Antarctica / Christian Rolf & Friedhelm Henjes-Kunst. - Aeromagnetic survey in Central Dronning Maud Land, East Antarctica, during the 1995/1996 GeoMaud Expedition: layout, execution, and data processing / Detlef Damaske, Vera Marginkowski, & Heinz-Dieter Möller. - Magnetic susceptibility of rock samples from Central Dronning Maud Land, East Antarctica / Hans-Jürgen Paech & Vera Marginkowski. - 3-D Aeromagnetic modelling in the Grubergebirge Area, Central Dronning Maud Land, East Antarctica / Sunchan Choi. - Ice thickness and sub-ice topography in Central Dronning Maud Land deduced by Radio Echo Sounding / Volkmar Damm & Dieter Eisenburger. - Airborne Radio Echo Sounding Survey in Central Dronning Maud Land, East Antarctica / Uwe Meyer, Daniel Steinhage, Uwe Nixdorf & Heinz Miller. - Gravity survey in Central Dronning Maud Land, East Antarctica, during the 1995/96 GeoMaud Expedition / Gernot Reitmayr. - Gravimetric profiling in Central Dronning Maud Land, East Antarctica / Diedrich Fritzsche. - A compilation of geophysical data from the Lazarev Sea and the Riiser-Larsen Sea, off Central Dronning Maud Land, East Antarctica / Karl Hinz, Soenke Neben, Yulia B. Gouseva & G. A. Kudryavtsev. - Sub-ice topography of selected areas in Central Dronning Maud Land, East Antarctica (Ground-based RES survey) / Georg Delisle. - Observations of the temperature field of glaciers at the margin of the Polar Plateau, Central Dronning Maud Land, East Antarctica / Georg Delisle. - A short note on the thermal regime of Lake Untersee in the Grubergebirge of Central Dronning Maud Land, East Antarctica / Georg Delisle & Michael Zeibig. - Late quaternary ice level changes in Central Dronning Maud Land, East Antarctica, as inferred from 14C ages of Mumiyo Deposits in snow petrel colonies / Ulrich Wand & Wolf-Dieter Hermichen. - A mummified seal found far inland in Central Dronning Maud Land, East Antarctica / Ulrich Wand & Wolf-Dieter Hermichen & Norbert W. Roland. - Precise GPS measurements to infer vertical crustal deformation in Central Dronning Maud Land, East Antarctica / Mirko Scheinert, Reinhard Dietrich, Axel Rülke, James Perlt & E. C. Malaimani. - Photogrammetric survey in Central Dronning Maud Land, East Antarctica, during the 1996 GeoMaud Expedition / Heinz Bennat. - Logistics of the 1995/96 GeoMaud Expedition to Central Dronning Maud Land, East Antarctica / Hans-Jürgen Paech & Jürgen Kothe. - Geographic data (Names, elevations and topographic maps) of Central Dronning Maud Land, East Antarctica / Hans-Jürgen Paech. - Comparison of the geology of Central Dronning Maud Land, East Antarctica, with other areas of the Gondwana Supercontinent / Hans-Jürgen Paech, Wilfried Bauer, Sandra Piazolo, Joachim Jacobs & Gregor Markl. - Present knowledge of the Geology of Central Dronning Maud Land, East Antarctica: Main results of the 1995/96 GeoMaud Expedition / Hans-Jürgen Paech. - 1 : 500,000 Geological map of Central Dronning Maud Land with explanatory notes / Hans-Jürgen Paech, Joachim Jacobs, Wilfried Bauer, Evgueni Mikhalsky, Franco Talarico, Fabrizio Colombo, Norbert W. Roland & Friedhelm Henjes-Kunst. - Editorial note.
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
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  • 45
    Monographie ausleihbar
    Monographie ausleihbar
    Potsdam : Alfred-Wegener-Institut für Polar- und Meeresforschung
    Signatur: AWI A8-07-0056
    Materialart: Monographie ausleihbar
    Seiten: 150 S. : Ill., graph. Darst.
    Anmerkung: Potsdam, Univ., Diss., 2005
    Zweigbibliothek: AWI Bibliothek
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  • 46
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-78/27
    In: CRREL Report, 78-27
    Beschreibung / Inhaltsverzeichnis: Uniaxial compression and tension tests were conducted on polycrystalline snow-ice to determine the effect of temperature on its strength. Test temperatures ranged from -O.1C to -54C. Two machine speeds, 0.847 mm/s and84.7 mm/s were used for the constant displacement rate tests. The compressive strength at -54C was about oneorder of magnitude higher than at -0.1C. The tensile strength at -18C was about 20% higher than at 0.1C. The initial tangent and 50% strength moduli are given for the compression tests, while the secant modulus to failure is given for the tension tests.The mode of fracture is discussed and the test results are compared with data from other investigations.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 22 Seiten , Illustrationen
    Serie: CRREL Report 78-27
    Sprache: Englisch
    Standort: AWI Archiv
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  • 47
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-78/19
    In: CRREL Report, 78-19
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 21 Seiten , Illustrationen
    Serie: CRREL Report 78-19
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Previous work Methods and results Methods of analysis Salinity-chlorophyll a associations Discussion Comparison of ice and water column standing crops Estimated mass of ice associated chl. a Mechanism of ice algae formation in the Weddell Sea Differences between the biological environments of fast and drifting pack ice Conclusions Literature cited Appendix A. Species variations - ice and water column
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  • 48
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-78/26
    In: CRREL Report, 78-26
    Beschreibung / Inhaltsverzeichnis: Ice fog suppression experiments on the Fort Wainwright Power Plant cooling pond were conducted during the winters of 1974-76. Baseline information studies occupied a sizable portion of the available ice fog weather in 1974-75. Then hexadecanol was added to the pond and dramatically improved visibility by reducing fog generated from water vapor released by the pond at -14 C. Although this temperature was not low enough to create ice fog, the cold vapor fog created was equally as devastating to visibility in the vicinity of the pond. During the winter of 1975-76, suppression tests were continued using films of hexadecanol, mixes of hexadecanol and octadecanol, and ethylene glycol monobutyl ether (EGME). Suppression effectiveness at colder temperatures was stuided and limits to the techniques were probed. A reinforcing grid was constructed that prevented breakup of the film by wind and water currents. Lifetime tests indicated that EGME degrades much more slowly than either hexadecanol or the hexadecanol-octadecanol mix. The films were found to be very effective fog reducers at warmer temperatures but still allowed 20% to 40% of normal evaporation to occur. The vapor thus produced was sufficient to create some ice fog at lower temperatures, but this ice fog occurred less frequently and was more quickly dispersed than the thick fog that was present before application of the films.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 27 Seiten , Illustrationen
    Serie: CRREL Report 78-26
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Ice fog from cooling ponds Evaporation Relative humidity and cold air Ice fog suppression Air movement Plastic films Rafts Injection wells Cooling towers Chemical films Reinforced film experiments Meteorological data collection Floating reinforcement grid Application of the hexadecanol film Hexadecanol, octadecanol mixes Ethylene glycol monobutyl ether Laboratory tests of suppression effectiveness Conclusions Literature cited Appendix A. Design for an automatic thin chemical film applicationsystem Appendix B. Meteorological data
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  • 49
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/18
    In: CRREL Report, 78-18
    Beschreibung / Inhaltsverzeichnis: The primary objective of this project was to demonstrate the utility of remote sensing techniques as an operational tool in the acquisition of data required by the U.S. Army Corps of Engineers, Seattle District, in the Grays Harbor dredging effects project, and related projects. Aerial imagery was used to map surface circulation and suspended sediment patterns near the hopper dredge pump site at the harbor entrance and near pulpmill outfalls in Aberdeen, and to map the areal distribution and extent of intertidal habitats. The surface circulation maps prepared from the aerial photographs and thermal imagery compared favorably with the large-scale circulation patterns observed in the Grays Harbor hydraulic model at the U.S. Army Engineer Waterways Experiment Station. Of the imagery provided by NASA, the thermal imagery was more useful than the color or color infrared (CIR) photographs for mapping circula­tion, while the CIR photographs were more useful than the thermal imagery or the color photographs for mapping intertidal habitats. Current velocities estimated from dye dispersion patterns and drifting dye drogues were comparable at some locations to velocities measured by in situ current meters and in the hydraulic model. Based on a cursory evaluation of LANDSAT-1 imagery acquired in January, February, and October 1973, it had limited utility in providing data on surface circulation patterns in Grays Harbor. The areal distribution and extent of nine wetland vegetation types, dune vegetation, and three types of eelgrass were mapped using primarily aerial C IR photographs and ground sur­veys. Color photographs were also used for areas not covered by the C IR photographs. Wetland vegetation types mapped were: low silty marsh, low sandy marsh, sedge marsh, high immature marsh, high mature marsh, salt marsh, diked pasture, freshwater marsh, and wooded swamp. Undiked salt marsh (first five types) covered 5540 acres (22.3 km2) in Grays Harbor.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 85 Seiten , Illustrationen
    Serie: CRREL Report 78-18
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Site description Background and objectives Project history Approach General Aircraft imagery and sensor data LANDSAT imagery Ground truth data Results and discussion Remote sensing techniques Conventional techniques Comparison of results Conclusions Advantages and disadvantages Applications Recommendations Literature cited
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  • 50
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hamburg : Inst. für Geophysik
    Dazugehörige Bände
    Signatur: S 98.0335(12) ; ZSP-180-C12
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: XIV, 132, XXXII S. : Ill., graph. Darst., Kt.
    ISSN: 0947-7144
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe C, Geophysik 12
    Klassifikation:
    B.3.1.
    Sprache: Deutsch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
    Zweigbibliothek: GFZ Bibliothek
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  • 51
    facet.materialart.
    Unbekannt
    Leningrad : Vsesoj. im. Lenina Naučno-Issl. Geol. Institut im A. P. Karpinskogo
    Signatur: AWI K-96-0595(1-16) ; AWI K-96-0522(1-16)
    Seiten: 1 Kt. auf 16 Bl. : mehrfarb. ; Gesamtgr. 337 x 206 cm
    Sprache: Russisch , Englisch
    Anmerkung: In kyrill. Schr. - Legende russ. u. engl.
    Standort: 16
    Standort: 16
    Zweigbibliothek: AWI Bibliothek
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  • 52
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-77/8
    In: CRREL Report, 77-8
    Beschreibung / Inhaltsverzeichnis: A broadbanded impulse radar system was used for aerial detection of accumulated frazil and brash ice in a 9.5-km reach of the St. Lawrence River near Ogden Island. The remote sensing and data reduction system developed for the project provided data sufficient for production of a contour map having 1-ft intervals. With this contour map, the accumulation pattern of frazil and brash ice could be analyzed. Recommendations are given for improving the performance of the aerial profiling system.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 19 Seiten , Illustrationen
    Serie: CRREL Report 77-8
    Sprache: Englisch
    Anmerkung: CONTENTS Page Abstract Preface Conversion factors: U.S. customary to metric (SI) units of measurement Background Objectives Profiling system Approach Profiling method Data reduction and interpretation Results Conclusions Recommendations Literature cited Appendix A. Comparison of ground and aerial data
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  • 53
    Signatur: ZSP-201-77/9
    In: CRREL Report, 77-9
    Beschreibung / Inhaltsverzeichnis: This report presents experimental results on the conditions of initiation of an ice jam by a simple surface obstruction, on the equilibrium thickness of an ice jam formed by accumulation and submergence of ice floes, and on the compression strength of floating, fragmented ice cover. In the study on ice jam initiation, it was found that the minimum concentration of floes in the opening of the obstruction at which a jam occurs is nearly independent of the ratio of width of constricted passage to channel width, and is proportional to a negative power of the ratio of floe length to width of constricted passage. From energy analysis of floe submergence, a relationship relating the thickness of a jam formed by accumulation and submergence of floes to the approach flow characteristics was derived and found to fit satisfactorily the experimental data. In experiments on compression strength of floating, fragmented ice cover it was found that the compressive strength is inversely proportional to compression velocity and independent of cover length.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 45 Seiten , Illustrationen
    Serie: CRREL Report 77-9
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface List of symbols Introduction I. Initiation of ice jams by partial surface obstructions A. Introductory remarks B. Experimental apparatus and procedure C. Dimensional analysis D. Presentation of results and discussion ΙΙ. Thickness of ice jams due to accumulation and transport of ice floes A. Introductory remarks B. Experimental apparatus and procedures C. Presentation of results E. Conclusion III. Compressive strength of floating fragmented ice covers A. Introductory remarks B. Experimental setup and procedure C. Presentation of results and discussion D. Conclusions Literature cited Appendix A: Experimental results on ice jam initiation Appendix B: Effect of surface tension on submergence velocity of ice floes Appendix C: Experimental results for ice jam thickness study Appendix D: Experimental results on compressive strength of fragmented ice cover
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  • 54
    Signatur: ZSP-201-78/9
    In: CRREL Report, 78-9
    Beschreibung / Inhaltsverzeichnis: Large, simply supported beams of temperate lake ice were found, generally, to yield significantly higher flexural strengths than the same beams tested in the cantilever mode. Data support the view that a significant stress concentration may exist at the fixed corners of the cantilever beams. Maximum effects are experienced with beams of cold, brittle ice substantially free of structural imperfections; for this kind of ice the strength difference factor, here attributed to the effect of stress concentrations, may exceed 2.0; that is, simply supported beams test a factor of 2 or more stronger than the same beams tested in the cantilever mode. In ice that has undergone extensive thermal degradation, the stress concentration effect may be eliminated entirely. Simply supported beams generally yield higher strengths when the top surfaces are placed in tension. This behavior is attributed to differences in ice type; the fine-grained, crack-free top layer of snow-ice which constituted up to 50% of the ice cover in the current series of tests usually reacted more strongly in tension than the coarse-grained crack-prone bottom lake ice.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 14 Seiten , Illustrationen
    Serie: CRREL Report 78-9
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Test sites and ice cover properties Beam testing Results Discussion Conclusions Literature cited
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  • 55
    Schriftenreihen ausleihbar
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/2
    In: CRREL Report, 78-2
    Beschreibung / Inhaltsverzeichnis: Many of the technical questions relating to iceberg transport are given brief, but quantitative, consideration. These include iceberg genesis and properties, the mechanical stability of icebergs at sea, towing forces and tug characteristics, drag coefficients, ablation rates, and handling and processing the iceberg at both the pick-up site and at the final destination. In particular the paper attempts to make technical information on glaciological and ice engineering aspects of the problem more readily available to the interested planner or engineer. Specific conclusions include: (1) No unprotected iceberg, no matter how long or wide, would be likely to survive the ablation caused by a long trip to low latitudes. (2) Icebergs that have a horizontal dimension exceeding 2 km may well be prone to breakup by long wavelength swells. (3) To avoid the dangers associated with an iceberg capsizing, the width of a 200-m thick iceberg should always be more than 300 m. (4) For towing efficiency the length/width ratio of a towed iceberg should be appreciably greater than unity. (5) For a pilot project, the selected iceberg would have to be quite small, if for no other reason than the practical availability of tug power.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 31 Seiten , Illustrationen
    Serie: CRREL Report 78-2
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Sources and properties of tabular icebergs Sources Characteristics of ice shelves near the ice front Characteristics of tabular icebergs Towing Geophysical and engineering considerations Tug characteristics Handling and processing Cutting and boring with thermal devices Penetration with electrothermal devices Electrothermal cutting Making vertical cuts by pre-split blasting Primary fragmentation by blasting Primary fragmentation by mechanical sawing Comminuting ice with machines Slurry pipelines Conclusion Literature cited
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  • 56
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/25
    In: CRREL Report, 77-25
    Beschreibung / Inhaltsverzeichnis: Results of a study to determine the feasibility of using an impulse radar to detect moisture variations in the built-up roof at CRREL and to monitor the curing of concrete are presented. The results indicate that impulse radar can be used to detect wide variations in roof moisture associated with built-up roof surface deterioration and that this technique has the potential of providing a nondestructive test method for measuring the strength of concrete during curing.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 9 Seiten , Illustrationen
    Serie: CRREL Report 77-25
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric units of measurement Introduction Impulse radar system Results and discussion Conclusions and recommendations Literature cited ILLUSTRATIONS Figure Relative locations where impulse radar measurements were made andsamples for moisture determinations were obtained on the CRREL roof Impulse radar signal reflected from metal sheet resting on roof Impulse radar signal reflection from roof at station A Impulse radar surface reflection coefficient versus moisture contentofroof Impulse radar signal reflection from aluminum foil on bottom of con-crete form and from aluminum sheet metal resting on top of form Unconfined compressive strength of concrete versus time Examples of X-Y plots of impulse radar signals obtained during thesounding of concrete slab Impulse radar signal reflection coefficients versus time for acuring concrete slab Calculated impulse radar signal attenuation in concrete slab versuselapsed time Dielectric constants versus time calculated from impulse radar signalInformation obtained during curing of concrete slab Unconfined compressive strength of concrete versus corrected reflec-tion coefficient calculated from impulse radar signal data obtainedduring the curing of concrete slab TABLES Comparison of roof moisture content with radar surface reflection coefficient and dielectric constant
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  • 57
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/17
    In: CRREL Report, 77-17
    Beschreibung / Inhaltsverzeichnis: A literature search was made for information on the accretion of ice on ocean structures and on methods for control. The bulk of the reports were in Russian, with some additional Japanese, British, American, Canadian, and Icelandic sources. Analysis of icing reports indicated that sea spray is the most important cause of ship icing, with lesser amounts due to freezing rain, snow, and fog. Icing is a potential danger whenever air temperatures are below the freezing point of water and the sea temperature is 6 C or lower. Theoretical work on the ice accretion process is discussed, and a method is suggested, based on Russian experiments, for calculating the sea spray accumulation rate for cylindrical and flat surfaces as a function of water source temperature, air temperature, and wind speed. Other factors that influence icing severity are ship size and configuration, angle between ship course and water heading, and ship speed. Icing in the north temperate latitudes generally occurs in the rear of barometric depressions. Maps showing limits of various degrees of icing severity are included. Atmospheric icing measurements on tall land-based structures are presented, and potential maximum accumulations estimated. Control measures are discussed, though no completely effective method is available. Mechanical (impaction) methods are the most common, but experiments have been conducted on heated, icephobic, and deformable surfaces, and with freezing point depressants. No device for the unequivocal measurement of ice accumulation is available, though some experimental methods are suitable for controlled testing; it is recommended that a device be developed.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 42 Seiten , Illustrationen
    Serie: CRREL Report 77-17
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric units of measurements Introduction The freezing proeess Icing observations Geographical distribution of icing and contributing meteorological conditions Extreme icing conditions Extremes of icc accumulation Prediction of icing occurrences Prediction of icing intensity and rate Control methods Measurement of icing rate Conclusions and recommendations Literature cited Appendix A. Maps of icing occurrence and rate Appendix B. Data for computing ship icing rates Appendix C. Estimation of ice accumulation
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  • 58
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/12
    In: CRREL Report, 77-12
    Beschreibung / Inhaltsverzeichnis: A computer program to calculate the increased live load on a snow-covered roof due to rain-on-snow is given. For the 25-year rainstorm falling on a heavy snow load on a flat roof in Hanover, New Hamsphire, and additional 98 kg/m2 (20 lb/ft2) of liquid water is added to the live load. The additional load due to rain-on-snow is very sensitive to the snow properties and characteristics of the roof. A wide range of live loads is possible, depending on the particular circumstances.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 19 Seiten , Illustrationen
    Serie: CRREL Report 77-12
    Sprache: Englisch
    Anmerkung: CONTENTS Page Abstract Preface Summary Nomenclature Introduction Water movement through snow Vertical percolation Lateral flow Flat roofs Sloping roofs Rainfall intensity-duration effects Miscellaneous effects Radial flow to drains Flow along gutters on snow-covered roofs Snow structure Basal layer Conclusion Literature citied Appendix A. Computer program calculating roof loads from rain-on-snow
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  • 59
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/14
    In: CRREL Report, 77-14
    Beschreibung / Inhaltsverzeichnis: The breakup of the Chena River was observed and documented during the spring of 1975 and 1976. This study attempted to determine the potential for damage to the proposed Chena River flood control dam from ice and debris during breakup. Results of this study were compared to those of a 1974 companion study. In 1975, ice thickness were determined to be 15% thinner than in 1974 and ice volume was 33% smaller. No major ice floes were observed in 1975 and no significant flooding occurred, although the approaches to a bridge at the damsite were eroded by debris and high water immediately after breakup. The 1976 breakup was milder than that of 1975. Minor flooding in the lower river was caused by jamming of a few large ice pieces, but no property damage resulted.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 44 Seiten , Illustrationen
    Serie: CRREL Report 77-14
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Summary Introduction Ice thickness and quantity Chronology of the 1975 Chena River breakup Checkpoint 3 Checkpoint 4 Checkpoint 5 Checkpoint 6 Checkpoint A Checkpoint 7 Checkpoint C Checkpoint D Checkpoint 8 Checkpoint 10 Checkpoint 11 Checkpoint 12 Spring flooding and debris The 1976 Chena River breakup Breakup in other years Summary and conclusions Appendix A. Sequential photographs of 1975 breakup at checkpoints 3-12
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  • 60
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/15
    In: CRREL Report, 77-15
    Beschreibung / Inhaltsverzeichnis: A laboratory experimental study was conducted on a scale model of an annular flow ice-water heat sink to be used to store the waste heat produced in a hardened defense installation operating in an isolated mode. The study ex­amined: 1) scaling relationships for predicting the performance of prototype units using data from scale models, 2) the accuracy of a computer prediction technique developed during an earlier study, 3) the heat transfer phenom­enon at the ice-water interface, and 4) some practical aspects related to the operation of a prototype installation. The scaling relationships and the computer program were found to be sufficiently accurate for use in developing a proto­type sink design. During operation the scale model sink provided an almost constant low temperature source of coolant water for approximately one-half its useful life and thereafter behaved like an ordinary stored water reservoir type heat sink. No significant operational problems were discovered.
    Materialart: Schriftenreihen ausleihbar
    Seiten: vii, 54 Seiten , Illustrationen
    Serie: CRREL Report 77-15
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Conversion factors: U.S. customary to metric units of measurement Introduction Description of experiment Apparatus Test procedure Experimental results Summary of experimental tests Influence of coolant water flow rates Approximation of the rate of melting Comparison of experimental and computed results Comparative analysis of the model sinks Approximation of the heat transfer coefficient Conclusions and recommendations Literature cited Appendix A. Experimental data, heat sink Model II Appendix B. Heat sink scaling and similarity relationships Appendix C. Derivation of the relationships for the heat transfer coefficient, Reynolds and Nusselt numbers Appendix D. Determination of freezing rates and refrigeration loads Appendix E. Approximation of stresses in the heat sink tank
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  • 61
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/11
    In: CRREL Report, 77-11
    Beschreibung / Inhaltsverzeichnis: Two performance indicators, effectiveness and thermal efficiency, are defined and used to evaluate the year-round performance of three protected membrane roofs in Alaska and New Hampshire. Effectiveness is a measure of the deviations of ceiling temperatures from a yearly average, with large diviations indicating erratic performance in the roofing-insulation system and small departures indicating a thermally stable system. Thermal efficiency, the ratio of calculated heat loss to measured heat loss, is affected by climatic conditions such as rain, snow, solar radiation and wind. Thermal efficiency values of 100% or greater are possible since the calculated heat loss is based only on the inside and outside air temperature differences and the thermal properties of the roof components. Results of the year-round evaluation indicate that the three protected membrane roofs generally have high values of both effectiveness and thermal efficiency.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 40 Seiten , Illustrationen
    Serie: CRREL Report 77-11
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Conversion factors: U.S.customary to metric (SI) units of measurement Introduction Location of test sites Fairbanks Anchorage Hanover, N.H. Test program Instrumentation Effectiveness Therma lefficiency Heat balance within the roof Comparisons with conventional systems Conclusions Effectiveness of the test roof Thermal efficiency Heat balance within the roof Applicability Recommendations Literature cited Appendix A. Temperature and heat flow measurements, Anchorage and Fairbanks, Alaska, and Hanover, New Hampshire Appendix B. Thermal efficiencies of the test roof, Anchorage and Fairbanks, Alaska, and Hanover, New Hampshire Appendix C. January 1973 and August 1972 comparisons of protected membrane and conventional built-up membrane systems at Hanover, New Hampshire
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  • 62
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-77/10
    In: CRREL Report, 77-10
    Beschreibung / Inhaltsverzeichnis: Abstract: The amount of force that an ice sheet can apply to a vertical pile was tested by lowering a hydraulic ram device into a hole cut in an existing ice sheet. The device had a large base and shoved a relatively narrow vertical pile in a horizontal direction. Test variables were: pile widths - 1.5 in. to 36.7 in.; pile shapes - flat, round, 45 ° and 90° wedges; ice thickness - 2.6 in. to 8.8 in.; and ram speed - 0.07 in./sec to 18.75 in./sec; but not all shapes and sizes were tested at all speeds. Air temperature was 20 ° F (-6.7 ° C). Forces and displacements were measured electronically. The findings are presented as a table of test results and as bar graphs of the resultant ice pressures versus the pile width-to-ice-thickness ratio, pile width and shape combination and pile velocity. The types of failures in the ice sheet were classified as crushing, splitting, buckling, bending, and creeping. The ice sheet generally withstood a high initial load followed by several lower peak load levels. The maximum ice pressure measured was 610 psi for a 12.6-in.-diam round pile in 8.4-in.-thick ice.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 9 Seiten , Illustrationen
    Serie: CRREL Report 77-10
    Sprache: Englisch
    Standort: AWI Archiv
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  • 63
    Signatur: AWI G3-98-0401b
    Materialart: Monographie ausleihbar
    Seiten: 161 S. : graph. Darst.
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  • 64
    Signatur: AWI G3-98-0401a
    Materialart: Monographie ausleihbar
    Seiten: 50 S. : Ill., graph. Darst., Kt.
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  • 65
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH
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    Signatur: ZSP-204-103
    In: CRREL Technical Report
    Materialart: Schriftenreihen ausleihbar
    Seiten: vi, 13 S. : Ill., graph. Darst., Kt.
    Serie: CRREL Technical Report 103
    Standort: AWI Lesesaal
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  • 66
    Monographie ausleihbar
    Monographie ausleihbar
    Copenhagen : Kommissionen for Videnskabelige Undersøgelser i Grønland
    Dazugehörige Bände
    Signatur: ZSP-553-15
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 72 S. : Ill., zahlr. graph. Darst.
    ISBN: 8717052297
    Serie: Meddelelser om Grønland : Bioscience 15
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 67
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    [Dordrecht] : Springer
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    Signatur: AWI G5-09-0015
    In: Developments in paleoenvironmental research, Vol. 13
    Beschreibung / Inhaltsverzeichnis: This book is the first synthesis of sedimentary geology and paleoceanography of the South China Sea on the basis of extensive industrial explorations and scientific expeditions culminated with the ODP Leg 184. It provides up-to-date knowledge about the history of this largest marginal sea in the West Pacific, deep-sea records of evolution and variations of the East Asian monsoon, and geological backgrounds of the off-shore petroleum basins. With its focus on paleoceanography and sedimentology, this volume provides a comprehensive all-round view of the marginal sea basin, from modern oceanography to sequence stratigraphy. The South China Sea: Paleoceanography and Sedimentology is essential reading for advanced students and researchers working in marine geology, basin evolution, sedimentology, paleoceanography and related fields.
    Materialart: Monographie ausleihbar
    Seiten: X, 506 S. : Ill., graph. Darst., Kt.
    ISBN: 9781402097447
    Serie: Developments in paleoenvironmental research 13
    Sprache: Englisch
    Anmerkung: Contents: 1 Introduction / Pinxian Wang and Qianyu Li. - References. - 2 Oceanographical and Geological Background / Pinxian Wang and Qianyu Li. - Introduction. - 2.1 Bathymetry and Geomorphology. - 2.2 Oceanography. - Monsoon. - Surface Circulation. - Surface Temperature and Salinity. - Thermocline and Upwelling. - Water Exchange with Pacific and Kuroshio Intrusion. - Deep Water Circulation. - Other Oceanographic Features. - Oceanographic Summary. - 2.3 Tectonic History and Sedimentary Basins. - Prior Terrains and Opening of the SCS. - Step-Wise Closure of the Sea Basin. - Formation of Shelf-Slope Sedimentary Basins. - Sediments of the SCS Shelf-Slope Basins: An Overview. - Summary of Tectonics and Basin Formation. - References. - 3 Stratigraphy and Sea Level Changes. - Introduction. - 3.1 Lithostratigraphic Overview / (Li Q. and Zhong G.). - Pre-Cenozoic Basement. - Lithostratigraphy of Syn-Rift Sediments. - Post-Rift Sediments in Shelf-Slope Basins. - Deep Water Lithostratigraphy. - 3.2 Biostratigraphic Framework / (Li Q.). - Floral and Shallow-Water Faunal Assemblages. - Planktonic Foraminiferal and Nannofossil Biostratigraphy. - Quaternary Lithobiostratigraphic Events. - 3.3 Isotopic and Astronomical Stratigraphy / (Tian J. and Li Q.). - Neogene Isotopic Records at Site 1148. - Pliocene–Pleistocene Isotopic Records at Site 1143. - 3.4 Stratigraphy of Major Shelf and Slope Basins / (Zhong G. and Li Q.). - Northern South China Sea Basins. - Southern South China Sea Basins. - 3.5 Regional Sea Level Changes / (Zhong G. and Li Q.). - Late Quaternary Sea Level Changes. - Long-Term Sea Level Changes Since the Oligocene. - New Approach Toward Fine-Scale Sea Level Magnitude. - Summary of South China Sea stratigraphy. - References. - 4 Sedimentology. - Introduction. - 4.1 Surface Deposition Patterns / (Liu Z.). - Deposit Distribution Patterns. - Sediment Transport. - 4.2 Terrigenous Deposition / (Liu Z.). - Clay Mineralogy and Geochemistry of Source Areas. - Clay Minerals. - Geochemistry. - Terrigenous Sediment Supply in Glacial Cycles. - Long-Term Changes of Terrigenous Sediment Supply. - 4.3 Biogenic Deposition. - Carbonate / (Li J. and Wang P.). - Opal / (Wang R.). - 4.4 Coral Reefs / (Yu K. and Zhao J.). - Modern Coral Reef Distribution. - Carbonate Platform Sediments and Calcium Carbonate Production. - Reef History. - 4.5 Volcanic Deposition / (Liu Z.). - Volcanic Rock Distribution. - Volcanic Ash Records. - Case Studies: Pinatubo, Toba. - 4.6 Estimation of Deposit Mass Since the Oligocene / (Huang W. and Wang P.). - Data Sources and Analyses. - Sediment Distribution and Mass. - Estimation of Terrigenous and Carbonate Masses. - Depositional Patterns. - Major Characteristics of SCS Sedimentation. - References. - 5 Upper Water Structure and Paleo-Monsoon. - Introduction. - 5.1 Sea Surface Temperature History / (Jian Z. and Tian J.). - SST Proxies. - Paleo-SST Reconstruction. - Paleo-SST Patterns. - 5.2 Thermocline Depth History / (Tian J. and Jian Z.). - Proxies of Thermocline Depth. - Paleo-Thermocline Depth. - 5.3 Vegetation History in Deep-Sea Record / (Sun X.). - Pollen Distribution in Surface Sediments. - Long-Term Evolution. - Last Glacial Pollen Records: North-South Differences. - North-South Comparison of the Vegetation During the LGM. - 5.4 Monsoon History / (Jian Z. and Tian J.). - Monsoon Proxies. - Tectonic-Scale Long-Term Evolution. - Orbital-Scale Variability. - Suborbital-Scale Variability. - Summary. - References. - 6 Deep Waters and Oceanic Connection / Quanhong Zhao, Qianyu Li and Zhimin Jian. - Introduction. - 6.1 Modern Deep Waters and Their Faunal Features. - Marginal Seas in the Western Pacific. - Modern Intermediate and Deep Waters in the South China Sea. - Modern Deep-Sea Benthic Foraminifera and Ostracods. - 6.2 Late Quaternary Deep-Water Faunas and Stable Isotopes. - 6.3 Neogene and Oligocene Deep-Water Benthic Faunas from ODP Leg 184 Sites. - Site 1148 Benthic Foraminifera. - Site 1148 Ostracods. - Faunal Indication of Deep-Water Mass Changes. - 6.4 Deep Water Evolution: Evidence from Carbonate. - Preservation and Isotopes. - Carbonate Dissolution. - Isotopic Records. - 6.5 Oceanic Connection. - Summary. - References. - 7 Biogeochemistry and the Carbon Reservoir. - Introduction. - 7.1 Productivity and Nutrient Dynamics in the Modern South China Sea / (Zhao M.). - Primary Productivity. - Nutrient Supplies. - Community Structure, Export Productivity and Sedimentary Biogenic Content. - 7.2 Paleoproductivity Reconstruction of the South China Sea / (Zhao M.). - Patterns of Productivity Changes During Glacial-Interglacial Oscillations. - Pre-Pleistocene Paleoproductivity Changes. - 7.3 Carbon Reservoir Changes / (Wang P., Tian J. and Li J.). - Modern Carbon Cycling. - Late Quaternary δ13C Cyclicity. - Long-Term Trend of Carbon Isotopes. - Summary. - References. - 8 History of the South China Sea – A Synthesis / Pinxian Wang and Qianyu Li. - Introduction. - 8.1 Evolution of the South China Sea Basin. - Pre-Spreading Stage in the Early Paleogene. - Seafloor Spreading in the Oligocene-Early Miocene. - Post-Spreading Stage Since the Late Miocene. - 8.2 Evolution of the East Asian Monsoon. - Summer Monsoon and Chemical Weathering. - Winter Monsoon and North-South Contrast. - East and South Asian Monsoons. - 8.3 Evolution of Continent-Ocean Interactions. - References. - Index.
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  • 68
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    Dazugehörige Bände
    Signatur: ZSP-691-1984
    In: Research in Svalbard
    Materialart: Schriftenreihen ausleihbar
    Seiten: 180 S.
    Sprache: Englisch
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  • 69
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Dazugehörige Bände
    Signatur: ZSP-691-1995
    In: Research in Svalbard
    Materialart: Schriftenreihen ausleihbar
    Seiten: 164 S. : graph. Darst.
    ISBN: 8276660932
    Sprache: Englisch
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  • 70
    Signatur: ZSP-553-33
    In: Meddelelser om Grønland
    Materialart: Monographie ausleihbar
    Seiten: 82 S. : Ill., graph. Darst., Kt.
    ISBN: 8760157062
    ISSN: 0106-1046
    Serie: Meddelelser om Grønland : Geoscience 33
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 71
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Signatur: ZSP-168-588
    In: Berichte zur Polar- und Meeresforschung ; 588
    Materialart: Schriftenreihen ausleihbar
    Seiten: 198 S. , Ill., graph. Darst.
    ISSN: 1866-3192
    Serie: Berichte zur Polar- und Meeresforschung 588
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 72
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    Longyearbyen : Govenor of Svalbard, Environmental Section
    Signatur: AWI P9-98-0001
    Materialart: Monographie ausleihbar
    Seiten: 22 S. : Ill.
    ISBN: 8291850003
    Sprache: Englisch
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  • 73
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    Monographie ausleihbar
    Longyearbyen : Governor of Svalbard, Environmental Section
    Signatur: AWI P9-98-0003
    Materialart: Monographie ausleihbar
    Seiten: 14 S. : Ill.
    ISBN: 8291850038
    Sprache: Englisch
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  • 74
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    Monographie ausleihbar
    Turku : Turun Yliopisto
    Signatur: AWI P5-79-0002
    Materialart: Monographie ausleihbar
    Seiten: 75 S.
    ISBN: 9516415903
    Sprache: Englisch
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  • 75
    Signatur: ZSP-180-B29
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Monographie ausleihbar
    Seiten: 82 S. : graph. Darst.
    ISSN: 0947-7136
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe B, Ozenographie 29
    Sprache: Deutsch
    Standort: AWI Lesesaal
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  • 76
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    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Monographie ausleihbar
    Seiten: 104 S. : graph. Darst., Kt.
    ISSN: 0947-7136
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe B, Ozeanographie 32
    Sprache: Deutsch
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  • 77
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    In: Middle atmosphere program
    Materialart: Monographie ausleihbar
    Seiten: 76 S.
    Sprache: Englisch
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  • 78
    Signatur: ZSP-558-9 ; MOP 46209 / Mitte
    In: Middle atmosphere program
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    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 79
    Signatur: ZSP-558-10 ; MOP 46209 / Mitte
    In: Middle atmosphere program
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    Standort: AWI Lesesaal
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  • 80
    Signatur: ZSP-405a-09-0019
    In: JAXA Research and Development Report
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    Seiten: 14 S. : graph. Darst.
    Serie: JAXA Research and Development Report RR-08-003E
    Sprache: Englisch
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  • 81
    Signatur: ZSP-558-14 ; MOP 46209 / Mitte
    In: Middle atmosphere program
    Materialart: Schriftenreihen ausleihbar
    Seiten: 368 S. : Ill., graph. Darst.
    Sprache: Englisch
    Standort: AWI Lesesaal
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  • 82
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    Moskva : Izdat. Nauka
    Signatur: MOP B 17672 ; AWI A13-17-9707
    Materialart: Monographie ausleihbar
    Seiten: 234 S. , graph. Darst.
    Serie: Bibliotečka Programmista
    Originaltitel: Applications des modèles numériques en physique 〈russ.〉
    Sprache: Russisch
    Anmerkung: In kyrill. Schr.
    Standort: MOP - Bitte bestellen
    Standort: AWI Lesesaal
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  • 83
    Signatur: S 98.0335(14) ; ZSP-180-C14
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 124 S. : Ill., graph. Darst., Kt.
    ISSN: 0947-7144
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe C, Geophysik 14
    Klassifikation:
    Tektonik
    Sprache: Deutsch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
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  • 84
    Signatur: S 98.0335(16) ; ZSP-180-C16
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
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    Seiten: 107 S. : graph. Darst.
    ISSN: 0947-7144
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe C, Geophysik 16
    Klassifikation:
    Erkundungsgeophysik / geophysikalische Prospektion
    Sprache: Deutsch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
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  • 85
    Signatur: S 98.0335(15) ; ZSP-180-C15
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
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    Seiten: VIII, 153 S. + Anhänge
    ISSN: 0947-7144
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe C, Geophysik 15
    Klassifikation:
    Tektonik
    Sprache: Deutsch
    Standort: Kompaktmagazin unten
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  • 86
    Signatur: S 98.0335(17) ; ZSP-180-C17
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: III, 144 S. : graph. Darst., Kt.
    ISSN: 0947-7144
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe C, Geophysik 17
    Klassifikation:
    Historische Geologie
    Sprache: Deutsch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
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  • 87
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    [Tokyo] : Japan Aerospace Exploration Agency
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    Signatur: ZSP-405b-09-0040
    In: JAXA Special Publication
    Materialart: Monographie ausleihbar
    Seiten: 334 S. : Ill., graph. Darst.
    Serie: JAXA Special Publication SP-08-010E
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  • 88
    Signatur: AWI G5-09-0039
    In: Developments in paleoenvironmental research
    Materialart: Monographie ausleihbar
    Seiten: XVII, 418 S. : graph. Darst., Kt.
    ISBN: 9789048126729
    Serie: Developments in paleoenvironmental research 14
    Sprache: Englisch
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  • 89
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    [Tokyo] : Japan Aerospace Exploration Agency
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    Signatur: ZSP-405b-09-0041
    In: JAXA Special Publication
    Materialart: Monographie ausleihbar
    Seiten: XIII, 419 S. : Ill., graph. Darst.
    Serie: JAXA Special Publication SP-08-014E
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  • 90
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    Signatur: ZSP-125-1995
    In: Antarctic Automatic Weather Station Data for the Calender Year ...
    Materialart: Monographie ausleihbar
    Seiten: 33 S. : graph. Darst.
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  • 91
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    Bremerhaven : Alfred-Wegener-Inst. für Polar- und Meeresforschung
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    Signatur: ZSP-168-182
    In: Berichte zur Polarforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 195 S. : Ill., graph. Darst., Kt.
    ISSN: 0176-5027
    Serie: Berichte zur Polarforschung 182
    Sprache: Englisch
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  • 92
    Signatur: PIK N 076-98-0014 ; AWI P1-98-0044
    In: Jahresgutachten
    Materialart: Monographie ausleihbar
    Seiten: 419 S.
    ISBN: 3540636560
    Serie: Jahresgutachten / Wissenschaftlicher Beirat der Bundesregierung Globale Umweltveränderungen
    Standort: A 18 - Bitte bestellen
    Zweigbibliothek: PIK Bibliothek
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  • 93
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    Hamburg : Inst. für Geophysik
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    Signatur: S 98.0335(11) ; ZSP-180-C11
    In: Berichte aus dem Zentrum für Meeres- und Klimaforschung
    Materialart: Schriftenreihen ausleihbar
    Seiten: 160 S. : graph. Darst.
    ISSN: 0947-7144
    Serie: Berichte aus dem Zentrum für Meeres- und Klimaforschung : Reihe C, Geophysik 11
    Klassifikation:
    Erkundungsgeophysik / geophysikalische Prospektion
    Sprache: Deutsch
    Standort: Kompaktmagazin unten
    Standort: AWI Lesesaal
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  • 94
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/24
    In: CRREL Report, 78-24
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 12 Seiten , Illustrationen
    Serie: CRREL Report 78-24
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Comparison of winters Ship effects Measured forces Sequential breaking of the structure Discussion Conclusions Recommendations Literature cited Appendix A. Force level fluctuations in west ice boom, 20 January 1977
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  • 95
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/20
    In: CRREL Report, 78-20
    Beschreibung / Inhaltsverzeichnis: Abstract: Measurements of the concentrations of Aitken nuclei in maritime air were made near Barrow, Alaska, in June 1975 with a modified Nolan-Pollack small-particle detector. The concentrations varied from 50 to 300 particles cm^-3 depending upon meteorological conditions. The mean Aitken nuclei count was 100 particles cm^-3 for diameters greater than 2 x 10^-3 μm. Transmission electron micrographs of aerosols in maritime air near Barrow were taken. The size range was measured to be 0.01 to 2.5 μm in diameter with the most frequently observed diameter being 0.04 μm. The volume of the maritime air and the collection efficiency of aerosol particles on filmed grids for electron microscopy were measured. The aerosol concentrations were found to be 76 to 101 particles cm^-3 ; the mean concentration was calculated to be 87 particles cm^-3. The aerosol particles in the maritime air were identified by electron microscopy and selected area electron diffraction analysis. About 20% of the aerosol particles were identified, and 80% of the particles were too small for electron diffraction analysis. Sea salt particles constituted 2% of the total, and clay minerals 3%; these particles were considered to be of natural origin. Solid combustion by-products such as coagulated carbon particles and fly ash particles constituted 16%. Despite the comparative remoteness of the sampling site, the measurements indicate that many anthropogenic aerosols were found using an electron microscope.
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    Seiten: iv, 48 Seiten , Illustrationen
    Serie: CRREL Report 78-20
    Sprache: Englisch
    Standort: AWI Archiv
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  • 96
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/8
    In: CRREL Report, 78-8
    Beschreibung / Inhaltsverzeichnis: The interaction of a 5.1-GHz transverse electric surface wave with a dielectric slab is experimentally investigated. The wave is initially supported by a dielectric substrate resting upon a metallic ground-plane. A slab, made of the same dielectric material as the substrate and variable in height, is then placed upon the waveguide. The results for a small slab sitting on the substrate showed that the discontinuity was a very inefficient launcher of reflected surface waves. Investigations of these reflections with a trough waveguide showed that, for values of slab height comparable to the exponential decay height of the surface wave, the reflections remain very small. However, as the slab height is increased beyond the decay height, the reflected amplitude approaches the theoretical value for a plane wave reflected from the interface between air and the same dielectric. The results are applicable to surface wave methods of microwave deicing of wings and helicopter rotors.
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    Seiten: v, 16 Seiten , Illustrationen
    Serie: CRREL Report 78-8
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Summary Introduction Background Objective and procedure Theory of plane surface waves Waveguide design and characteristics Physical apparatus Frequency characteristics Spatial distribution of Ey above the guide Guide wave length Surface wave interaction with a slab discontinuity Experiments with a trough Discussion and conclusions Literature cited
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  • 97
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    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
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    Signatur: ZSP-201-78/5
    In: CRREL Report, 78-5
    Beschreibung / Inhaltsverzeichnis: The viscoelastic deflection of an infinite floating ice plate subjected to a circular load was solved, assuming the Maxwell-Voigt type four-element model. An effective method of numerical integration of the solution integrals was developed, of which each integrand contains a product of Bessel functions extending to infinity. The theoretical curve was fitted to the field data, but the material constants thus found varied with time and location.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 32 Seiten , Illustrationen
    Serie: CRREL Report 78-5
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction The problem The solution Method of numerical integration Ramp/steady loading Curve fitting to time lapse deflections Asymptotic deflection Deflection profiles Acknowledgement Literature cited Appendix I. Analytical background Appendix II. Computer programs, ramp time profiles and steady time profiles
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 98
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    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-78/6
    In: CRREL Report, 78-6
    Beschreibung / Inhaltsverzeichnis: A new freezing mechanism, called segregation freezing, is proposed to explain the generation of the suction force that draws pore water up to the freezing surface of a growing ice lens. The segregation freezing temperature is derived by applying thermodynamics to a soil mechanics concept that distinguishes the effective pressure from the neutral pressure. The frost-heaving pressure is formulated in the solution of the differential equations of the simultaneous flow of heat and water, of which the segregation freezing temperature is one of the boundary conditions.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iv, 13 Seiten , Illustrationen
    Serie: CRREL Report 78-6
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Nomenclature Introduction Segregation freezing Analysis Heat conduction in the nascent ice layer Water flow in the unfrozen soil Heat transfer in the unfrozen soil Energy balance at the segregation-freezing front Numerical computation Literature cited Appendix A. Essence of Portnov’s method Appendix B. Frost-heaving without air available
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 99
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    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-78/1
    In: CRREL Report, 78-1
    Beschreibung / Inhaltsverzeichnis: The results of axial double point-load tests on disk samples of snow and ice obtained from the area of McMurdo Sound, Antarctica, are presented. They show the effects of temperature, sample length, load point diameter and specific gravity on failure load. It was determined that 13 samples should be tested to obtain a representative mean strength index. The results show that the axial double point-load test has good possibilities as a rapid field test for determining the unconfined comrpessive strength of snow and ice but that further evaluation of the variables affecting test results must be made.
    Materialart: Schriftenreihen ausleihbar
    Seiten: iii, 11 Seiten , Illustrationen
    Serie: CRREL Report 78-1
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Introduction Test procedure Test program Test samples Number of test for determining strength index Effect of temperature Effect of sample length Effect of load point size Tests on snow Discussion Recommendations Literature cited
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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  • 100
    Schriftenreihen ausleihbar
    Schriftenreihen ausleihbar
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Dazugehörige Bände
    Signatur: ZSP-201-77/31
    In: CRREL Report, 77-31
    Beschreibung / Inhaltsverzeichnis: Ten roofs in Concord, New Hampshire, were surveyed for wet insulation using a hand-held infrared camera. Suspected wet areas were marked on the roof with spray paint and roof samples were obtained to verify wet and dry conditions. Recommendations for maintenance and repair were made based on infrared findings, water contents, and visual examinations. An incremental economic study is presented to serve as a guide in determining the most cost-effective approach.
    Materialart: Schriftenreihen ausleihbar
    Seiten: v, 29 Seiten , Illustrationen
    Serie: CRREL Report 77-31
    Sprache: Englisch
    Anmerkung: CONTENTS Abstract Preface Conversion factors: US, customary to metric (SI) units of measurement Introduction Infrared camera Core samples State House State House Annex State Library Legislative Office Building Public Health Complex Highway Garage Fish and Game Offlces Supreme Court John O. Morton Building Department of Health and Welfare Laboratory Economics of roof reinsulation Conclusions and recommendations Literature cited
    Standort: AWI Archiv
    Zweigbibliothek: AWI Bibliothek
    Standort Signatur Erwartet Verfügbarkeit
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