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  • Books  (53)
  • 2000-2004  (17)
  • 1980-1984  (26)
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  • AWI Library  (53)
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  • 1
    Series available for loan
    Series available for loan
    Hydraulic model study of Port Huron ice control structure (1982)
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
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    Call number: ZSP-201-82/34
    In: CRREL Report, 82-34
    Description / Table of Contents: The ice discharge through an opening in an ice control structure was documented to be a function of the floe size, ice type, ice floe conditions and vessel direction. The model data for the average ice discharge per vessel transit scaled to prototype values compared favorably with data taken at the St. Marys River ice control structure (ICS). The model results of the force measurements were also consistent with data taken at the St. Marys ICS. The dynamic loading conditions were independent of vessel direction. The dynamic loading to the structure using 3 types of ice (plastic, natural and urea-doped) showed a considerable difference in their means and standard deviations. The urea-doped ice was evaluated for dynamic loading conditions, and reasonable peak values of 3 to 5 times the mean load at each measuring position were recorded, independent of vessel direction. It appears that synthetic random ice floes may be used in model studies where ice discharge through an opening in a structure needs to be documented. This study shows the synthetic random ice floe discharge to fall reasonably within the values obtained for natural ice discharge for both rafted and non-rafted ice fields above the ICS. However, the question of whether synthetic ice can be used for analyzing force distributions and dynamic force loading criteria cannot be fully answered at this time because the load distributions of the synthetic and natural floes appear to differ.
    Type of Medium: Series available for loan
    Pages: 68 Seiten , Illustrationen
    Series Statement: CRREL Report 82-34
    URL: https://apps.dtic.mil/docs/citations/ADA123715
    URL: https://hdl.handle.net/11681/9331
    Language: English
    Note: CONTENTS Abstract Preface Introduction Scope of work Ice discharge from Lake Huron into St. Clair River Water velocity profiles at Port Huron Ice conditions Physical model Basis for selection Description Instrumentation Model ice control structure Open water calibration Open water tests Experimental procedures and techniques Ice cover calibration Ice control structure orientation Analysis of ice discharge due to ship transits Natural ice Synthetic ice Forces on the ice control structure Static measurements Dynamic force measurements Potential additional shear stresses Anticipated ice conditions with ICS Conclusions Literature cited Appendix A. Application of model results Appendix B. Suggested additional studies Appendix C. Derivation of ice discharge
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  • 2
    Series available for loan
    Series available for loan
    Model study of Port Huron ice control structure : wind stress simulation (1982)
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
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    Call number: ZSP-201-82/9
    In: CRREL Report, 82-9
    Description / Table of Contents: This study deals with the distribution of forces along the converging boundaries of the Port Huron, Michigan, region where unconsolidated ice in Lake Huron is held against wind and water stresses. An experimental basin was built to induce uniform shear stress on the model ice cover by flowing water beneath the ice. The boundary segments, which held the ice cover in the region, were instrumented to measure force in the normal and tangential directions. The distribution of normal forces along the boundary was compared with as distribution derived by using a theoretical model. An ice control structure (ICS) was installed in the basin and experiments were conducted to measure the forces on the ICS and the ice release through the opening in the ICS during simulated ship passages. The experimental results are presented in a nondimensional form. In addition, the force per unit length on the ICS and the area of ice released through its opening were estimated for the expected wind conditions at the Port Huron site.
    Type of Medium: Series available for loan
    Pages: v, 27 Seiten , Illustrationen
    Series Statement: CRREL Report 82-9
    URL: https://hdl.handle.net/11681/9347
    Language: English
    Note: CONTENTS Abstract Preface List of symbols Introduction Theoretical models Case 1 Case 2 Case 3 Experimental program Experimental facility Scaling factors Experimental results Analysis of wind data for lower Lake Huron Summary and conclusions Release of ice through the opening of an ICS Ice forces on the ice control structure Ice forces on ice control structure from a large unconsolidated ice cover Literature cited Appendix A. Equation for the stress resultants and velocities of the ice cover Appendix B. Monthly summary of wind data at Port Huron
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  • 3
    Monograph available for loan
    Monograph available for loan
    Pul'siruyushchie Ledniki (1982)
    Leningrad : Gidrometeoizdat
    Details Availability
    Call number: AWI G7-82-0934
    Type of Medium: Monograph available for loan
    Pages: 191 S. : Abb. ; 23 cm
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  • 4
    Series available for loan
    Series available for loan
    Investigations performed on the Arctic Ice Dynamics Joint Experiment, March 1971 (1973)
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Details Availability
    Call number: ZSP-202-315
    In: Research report
    Description / Table of Contents: CONTENTS: Preface. - Introduction. - Part 1:Mesoscale strain measurements on the Beaufort Sea pack ice. - Abstract. - Introduction. - Previous work. - Site location. - Results. - Correlation of synoptic aerial photography with measured strains. - Correlation of estimated wind stress and strain. - Conclusions. - Literature cited. - Part II: Structure of a multiyear pressure ridge. - Abstract. - Introduction. - Profiles. - Internal properties. - Largest ridge sail. - Conclusions. - Literature cited. - Part III: Top and bottom roughness of a multiyear ice floe. - Abstract. - Introduction. - Results. - Literature cited. - Part IV:Airphoto analysis of ice deformation in the Beaufort Sea Abstract. - Introduction. - Study area. - Method of analysis. - Ice deformations. - Net deformational changes. - Pressure ridge distribution. - Summary and conclusions. - Literature cited. - Part V: Data on morphological and physical characteristics of sea ice in the Beaufort Sea.
    Description / Table of Contents: Mesoscale strain measurements on the Beaufort Sea pack ice; Structure of a multiyear pressure ridge; Top and bottom roughness of a multiyear ice floe; Airphoto analysis of ice deformation in the Beaufort Sea; Data on morphological and physical characteristics of sea ice in the Beaufort Sea.
    Type of Medium: Series available for loan
    Pages: iii, 66 Seiten , Illustrationen
    Series Statement: Research report / Cold Regions Research and Engineering Laboratory, CRREL, US Army Material Command 315
    URL: http://www.worldcat.org/oclc/1014548
    Language: English
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  • 5
    Monograph available for loan
    Monograph available for loan
    Drift auf der Eisscholle (1970)
    Leipzig : Brockhaus
    Details Availability
    Call number: AWI E2-84-0766
    Type of Medium: Monograph available for loan
    Pages: 272 S.: Fototaf. + 1 Kte. ; 21 cm
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  • 6
    Monograph available for loan
    Monograph available for loan
    Flora of the Russian Arctic : a critical review of the vascular plants occuring in the Arctic Region of the former Soviet Union; Volume III, Salicaceae - Ranunculaceae (2000)
    Berlin : Borntraeger
    Associated volumes
    Details Availability
    Call number: AWI Bio-00-0281
    In: Flora of the Russian Arctic, Volume III
    Description / Table of Contents: This volume - the third of six - continues the first comprehensive English-language flora of the Russian Arctic. Flora of the Russian Arctic translates Arkticheskaya Flora SSSR, the authoritative work of botanists of the komarov Botanical Institute prepared under the editorship of A. I. Tolmachev and B. A. Yurtsev. This unexcerpted translation was prepared by distinguished systematist G. C. D. Griffiths under the editorship of J. G. Packer, Professor Emeritus of Botany at the University of Alberta. It represents the first time this work has been made available in a language other than Russian. This third volume of Flora of the Russian Arctic describes the nine families here listed. Together, the six volumes in the series will treat some 360 genera, 1650 species and 220 infraspecific taxa, including many new combinations and previously undescribed species and subspecies. The original distribution maps and detailed keys to genera and species complement the species discussions. The Russian Arctic spans 160 degrees of longitude, from the Norwegian frontier to the Bering Strait. The comprehensive content and accomplished scholarship of this work, along with the size of the area covered, make Flora of the Russian Arctic an essential part of any botanical library.
    Type of Medium: Monograph available for loan
    Pages: XXXV, 472 Seiten , Illustrationen
    Edition: First English edition
    ISBN: 3443500242
    Series Statement: Flora of the Russian Arctic : a critical review of the vascular plants occurring in the Arctic region of the former Soviet Union 3
    Uniform Title: Arktičeskaja flora SSSR
    URL: https://external.dandelon.com/download/attachments/dandelon/ids/DE006843726FDC4427DF8C1257AC9003C4601.pdf
    Language: English , Latin
    Note: Contents Acknowledgements Editor's Preface Translator's Preface Preface to Volume V of the Russian Edition, Salicaceae-Portulacaceae Preface to Volume VI of the Russian Edition, Caryophyllaceae-Ranunculaceae Abbreviations Used in Citing Floristic and Systematic Literature FAMILY XX / Salicaceae — Willow Family GENUS 1 / Populus - Poplar GENUS 2 / Chosenia - Chosenia GENUS 3 / Salix - Willow FAMILY XXI / Betulaceae — Birch Family GENUS 1 / Betula - Birch GENUS 2 / Alnaster - Green Alder GENUS 3 / Alnus - Alder FAMILY XXII / Urticaceae — Nettle Family GENUS 1 / Urtica - Nettle FAMILY XXIII / Polygonaceae — Buckwheat Family GENUS 1 / Oxyria - Mountain Sorrel GENUS 2 / Rumex - Dock, Sorrel GENUS 3 / Rheum - Rhubarb GENUS 4 / Koenigia - Koenigia GENUS 5 / Polygonum - Knotweed, Smartweed FAMILY XXIV / Chenopodiaceae — Goosefoot Family GENUS 1 / Chenopodium - Goosefoot GENUS 2 / Monolepis - Monolepis GENUS 3 / Atriplex - Orache GENUS 4 / Corispermum - Bugseed FAMILY XXV / Portulacaceae — Purslane Family GENUS 1 / Claytonia - Spring Beauty GENUS 2 / Montia - Blinks FAMILY XXVI / Caryophyllaceae — Pink Family GENUS 1 / Stellaria - Chickweed, Stitchwort GENUS 2 / Cerastium - Mouse-ear Chickweed GENUS 3 / Sagina - Pearlwort GENUS 4 / Minuartia - Minuartia GENUS 5 / Honkenya - Sea Sandwort GENUS 6 / Arenaria - Sandwort GENUS 7 / Moehringia - Groue Sandwort GENUS 8 / Merckia - Mercfo'a GENUS 9 / Spergula - Corn Spurry GENUS 10 / Spergularia - Sand Spurry GENUS 11 / Agrostemma - Corn Cockle GENUS 12 / Viscaria - Catchfly GENUS 13 / Silene - Campion GENUS 14 / Lychnis - Lychnis GENUS 15 / Coronaria - Ragged Robin GENUS 16 / Gastrolychnis - Gastrolychnis GENUS 17 / Gypsophila - Baby's-breath GENUS 18 / Dianthus - Pink FAMILY XXVII / Faeoniaceae — Peony Family GENUS 1 /Paeonia - Peony FAMILY XXVIII / Ranunculaceae — Buttercup Family GENUS 1 / Caltha - Marsh Marigold GENUS 2 / Trollius - Globe Flower GENUS 2a / Coptis - Goldthread GENUS 3 / Aquilegia - Columbine GENUS 4 / Delphinium - Larkspur GENUS 5 / Aconitum - Monkshood GENUS 6 7 Anemone - Anemone GENUS 7 / Pulsatilla - Pasque Flower GENUS 8 / Atragene - Alpine Clematis GENUS 9 / Oxygraphis - Oxygraphis GENUS 10 / Beckwithia - Beckwithia GENUS 11 / Batrachium - White Water Crowfoot GENUS 12 / Ranunculus - Buttercup GENUS 13 / Thalictrum - Meadow Rue APPENDIX I / Summary of Data on the Geographical Distribution of Vascular Plants of the Soviet Arctic TABLE 5 / Distribution of Vascular Plants of the Soviet Arctic, Salicaceae-Ranunculaceae Index of Plant Names
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  • 7
    Monograph available for loan
    Monograph available for loan
    Raznostnye metody rešenija kraevych zadač (1972)
    Moskva : Mir
    Details Availability
    Call number: AWI S1-17-90651
    Type of Medium: Monograph available for loan
    Pages: 418 S. , graph. Darst.
    Edition: Perev. so 2-e angl. izd.
    Uniform Title: Difference methods for initial-value problems 〈russ.〉
    Language: Russian
    Note: In kyrill, Schr., russ.
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  • 8
    Series available for loan
    Series available for loan
    Bering Strait sea ice and the Fairway Rock icefoot (1982)
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
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    Call number: ZSP-201-82/31
    In: CRREL Report, 82-31
    Description / Table of Contents: Information on sea ice conditions in the Bering Strait and the icefoot formation around Fairway Rock, located in the strait, is presented. Cross-sectional profiles of Fairway Rock and the relief of the icefoot are given along with theoretical analyses of the possible forces active during icefoot formation. It is shown that the ice cover most likely fails in flexure as opposed to crushing or buckling, as the former requires less force. Field observations reveal that the Fairway Rock icefoot is massive, with ridges up to 15 m high, a seaward face only 20 degrees from vertical, and interior ridge slopes averaging 33 degrees. The icefoot is believed to be grounded and its width ranges from less than 10 to over 100 m.
    Type of Medium: Series available for loan
    Pages: 44 Seiten , Illustrationen
    Series Statement: CRREL Report 82-31
    URL: https://apps.dtic.mil/docs/citations/ADA122477
    URL: https://hdl.handle.net/11681/9317
    Language: English
    Note: CONTENTS Abstract Preface Introduction Bering Strait Field reconnaissance Estimation of ice forces on Fairway Rock 1. Creep deformation 2. Crushing failure 3. Flexural failure 4. Forces required to form floating or grounded pressure ridges along therock or to pile ice on the beaches 5. Buckling failure Driving forces Angle of internal friction of sea ice Summary Literature cited Appendix A: April 1982 field observations at Fairway Rock
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  • 9
    Series available for loan
    Series available for loan
    Direct filtration of streamborne glacial silt (1982)
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
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    Call number: ZSP-201-82/23
    In: CRREL Report, 82-23
    Description / Table of Contents: A direct filtration, water treatment pilot plant was operated on the Kenai River at Soldotna, Alaska, during the summer of 1980. The purpose of the pilot plant operations was to determine the feasibility of the direct filtration process for removal of glacial silt. The major criterion used to determine feasibility was production of water containing less than 1.0 NTU of turbidity. For the range of raw water turbidities encountered (22-34 NTU), the pilot plant testing indicated that direct filtration was feasible and could be considered as an alternative to conventional waiter treatment plants containing sedimentation tanks.
    Type of Medium: Series available for loan
    Pages: 26 Seiten , Illustrationen
    Series Statement: CRREL Report 82-23
    URL: https://apps.dtic.mil/dtic/tr/fulltext/u2/a120751.pdf
    URL: https://hdl.handle.net/11681/9360
    Language: English
    Note: CONTENTS Abstract Preface Conversion factors: U.S. customary to metric Introduction Glacial characteristics Water treatment Materials and methods Experimental design Pilot plant intake Hydrocyclone Chemical addition system Flocculation system Filtration system Pilot plant operations Coagulant chemical preparations Flow measurement Sampling Results and discussion Kenai River w ater quality Evaluation of pilot plant testing Performance of pilot plant elements Physical and chem ical variables Conclusions Recommendations Literature cited
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  • 10
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    Series available for loan
    Statistical aspects of ice gouging on the Alaskan Shelf of the Beaufort Sea (1983)
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
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    Call number: ZSP-201-83/21
    In: CRREL Report, 83-21
    Description / Table of Contents: The probability density function of the gouge depths into the sediment is represented by a simple negative exponential over four decades of gouge frequency. The exceedance probability function is, therefore, e to the -lambda d, where d is the gouge depth in meters and lambda is a constant. The value of lambda shows a general decrease with increasing water depth, from 9/m in shallow water to less than 3/m in water 30 to 35 m deep. The deepest gouge observed was 3.6 m, from a sample of 20,354 gouges that have depths greater than or equal to 0.2 m. The dominant gouge orientations are usually unimodal and reasonably clustered, with the most frequent alignments roughly parallel to the general trend to the coastline. The value of N(bar) sub 1, the mean number of gouges (deeper than 0.2 m) per kilometer measured normal to the trend of the gouges, varies from 0.2 for protected lagoons to 80 in water between 20 and 38 m deep in unprotected offshore regions. The distribution of the spacings between gouges as measured along a sampling track is a negative exponential. The form of the frequency distribution of N sub 1 varies with water depth and is exponential for lagoons and shallow offshore areas, previously skewed for 10 to 20 m depths off the barrier islands, and near-normal for deeper water. As a Poisson distribution gives a reasonable fit to the N sub 1 distributions for all water depths, it is suggested that gouging can be taken as approximating a Poisson process in both space and time. The distributions of the largest values per kilometer of gouge depths, gouge widths, and the heights of the lateral embankment of sediments plowed from the gouges are also investigated.
    Type of Medium: Series available for loan
    Pages: 40 Seiten , Illustrationen, 1 Karte
    Series Statement: CRREL Report 83-21
    URL: https://apps.dtic.mil/docs/citations/ADA134428
    URL: https://hdl.handle.net/11681/9302
    Language: English
    Note: CONTENTS Abstract Preface Introduction Background and environmental setting Data collection and terminology Data analysis Gouge depths Gouge orientation Gouge frequency Extreme value analysis Applications to offshore design Gouge depth Extreme value statistics Burial depths Conclusion Literature cited Appendix A: Detailed bathymetric map of the Alaskan portion of the Beaufort Sea
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