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  • GEOPHYSICS  (1,803)
  • Physics  (1,639)
  • Cell & Developmental Biology  (1,189)
  • 1980-1984  (3,345)
  • 1975-1979
  • 1970-1974  (1,286)
  • 1925-1929
  • 1984  (1,948)
  • 1980  (1,397)
  • 1970  (1,286)
Collection
Keywords
Publisher
Language
Years
  • 1980-1984  (3,345)
  • 1975-1979
  • 1970-1974  (1,286)
  • 1925-1929
Year
  • 1
    Unknown
    Mathematical and conceptual foundations of 20th-century physics (1984)
    Amsterdam ; New York : North-Holland Pub. Co
    Details
    Keywords: DDC 530.1 ; LC QC20 ; Mathematical physics ; Physics ; Quantum theory ; Relativity (Physics)
    ISBN: 9780444875853
    URL: http://www.sciencedirect.com/science/publication?issn=03040208&volume=100
    Language: English
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    E-BOOK
  • 2
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    Preliminary examination of lunar samples (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-12-21
    Description: Geochemical and minerological analyses of Apollo 12 soil and rock samples
    Keywords: GEOPHYSICS
    Type: APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 189-216
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  • 3
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    Preliminary geologic investigation of the Apollo 12 landing site. Part B - Photometric and polarimetric properties of the lunar regolith (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Photometric and polarimetric properties of Apollo 12 and Surveyor 3 landing sites
    Keywords: GEOPHYSICS
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 157-161
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  • 4
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    Preliminary geologic investigation of the Apollo 12 landing site. Part C - Mechanical properties of the lunar regolith (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Soil mechanics of regolith around Apollo 12 landing site
    Keywords: GEOPHYSICS
    Type: NASA MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 161-182
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  • 5
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    Preliminary geologic investigation of the Apollo 12 landing site. Part A - Geology of the Apollo 12 landing site (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Apollo 12 landing site geology and topography
    Keywords: GEOPHYSICS
    Type: NASA. MANNED SPACECRAFT CENTER APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 113-156
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  • 6
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    Passive seismic experiment (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Apollo 12 passive seismometer design and signal interpretation
    Keywords: GEOPHYSICS
    Type: APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 39-53
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  • 7
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    Lunar surface magnetometer experiment (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-06
    Description: Apollo 12 magnetometer data and selenomagnetic field determinations
    Keywords: GEOPHYSICS
    Type: APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 55-73
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  • 8
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    Preliminary results from Surveyor 3 analysis (1970)
    In:  CASI
    Details
    Publication Date: 2004-12-01
    Description: Engineering and scientific analysis of Surveyor 3 dust, TV camera, and structural components
    Keywords: GEOPHYSICS
    Type: APOLLO 12- PRELIM. SCI. REPT. 1 JUN. 1970; P 217-223
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  • 9
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    Ground truth versus no ground truth (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The area of study was the southeastern Arizona test site and three areas within the site were studied in detail: Safford, Point of Pines, and Fort Apache-White River. These areas have terrain contrast ranging from flat arid regions to high alpine mountains. Data were obtained from the Apollo 9 photographic missions, high altitude aerial photography, and simulated ERTS-A data from high altitude aircraft. Various monoscopic and steroscopic devices were used to analyze the features, and film density variations were studied. No ground-based data were permitted. Thematic maps were prepared for geology, geomorphology, vegetation, hydrology, and soils. Interpreted boundaries were delineated, with no collaborative data used in the interpretation. Ground-based data were gathered during the overflight of high altitude aerial photography. A further study was made using the ground truth, and the data gathered on the ground were compared with original mapping. 80% to 85% of the interpretations in the areas checked were correct. It was proved that it is possible to monitor gross features of the vigor of crop lands and vegetative cover, to type soils and classify geologic features, and to determine hydrologic conditions.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 3 p
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  • 10
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    Preprocessing of multispectral data and simulation of ERTS data channels to make computer terrain maps of a Yellowstone National Park test site (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The possibility of improving the accuracy of terrain classification by preprocessing spectral data was investigated. Terrain maps were made using the following techniques: 1) preprocessing by scan angle function transformation, using the computer-selected best set of three channels; and 2) preprocessing by ratio transformation, using the specified ERTS data channels, simulated by fitting the spectral response of each of the 12 data channels to the ERTS channels by a set of weighting coefficients. By using a simple technique during printout, the maps were produced in color. The normalized scan angle function transformation resulted in the most accurate classification. The best ratio transformation for the Yellowstone Park data was the ratio of each channel to the sum of all channels. A supervised training program involving maximum likelihood decision for selecting the best spectrometer channels and similar techniques for digitizing the data of the analog magnetic tapes were used. Cloud shadows were recognized in addition to eight classes of terrain. Preprocessing of data resulted in more accurate maps, required fewer training areas (hence less preparation and computer time), and enabled much of the area formerly classified as shadow to be reclassified according to actual terrain type.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1.; 25 p
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  • 11
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    Regional land use studies (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Remote sensing technology and data from instrumented satellites and high altitude aircraft are proposed for mapping land use on a current national basis, for monitoring changes and trends, and for creating statistical models which can be manipulated to demonstrate the probable effects of proposed land use and of environmental changes over large areas. Both Apollo spacecraft and aircraft photography were used; the spacecraft pictures delineated the cropland and urban boundaries more clearly. A computer model is also proposed for statistical analysis and for printing out updated maps automatically; this model will include a data bank which can be updated rapidly with changes detected by the computer.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 9 p
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  • 12
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    Linear geologic structure and magic rock discrimination as determined from infrared data (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Color infrared photographs of the Beartooth Mountains, Montana show the distribution of mafic dikes and amphibolite bodies. Lineaments that cross grassy plateaus can be identified as dikes by the marked constrast between the dark rocks and the red vegetation. Some amphibolite bodies in granitic terrain can also be detected by infrared photography and their contacts can be accurately drawn due to enchanced contrast of the two types of rock in the near infrared. Reflectance measurements made in the field for amphibolite and granite show that the granite is 25% to 50% more reflective in the near infrared than in the visible region. Further enhancement is due to less atmospheric scattering than in the visible region. Thermal infrared images of the Mill Creek, Oklahoma test site provided information on geologic faults and fracture systems not obtainable from photographs. Subtle stripes that cross outcrop and intervening soil areas and which probably record water distribution are also shown on infrared photographs.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 12 p
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  • 13
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    Experimental applications of multispectral data to natural resource inventory and survey (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The feasibility of using multispectral, color, color infrared, thermal infrared imagery and related ground data to recognize, identify, determine and monitor the status of mineral ore and metals stockpiles is studied. An attempt was made to identify valid, unique spectral signatures of such materials for possible use under a wide variety of environmental circumstances. Research emphasis was upon the analysis of the multiband imagery from the various film-filter combinations, using density analysis techniques.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 33 p
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  • 14
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    Introductory comments on the USGS geographic applications program (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The third phase of remote sensing technologies and potentials applied to the operations of the U.S. Geological Survey is introduced. Remote sensing data with multidisciplinary spatial data from traditional sources is combined with geographic theory and techniques of environmental modeling. These combined imputs are subject to four sequential activities that involve: (1) thermatic mapping of land use and environmental factors; (2) the dynamics of change detection; (3) environmental surveillance to identify sudden changes and general trends; and (4) preparation of statistical model and analytical reports. Geography program functions, products, clients, and goals are presented in graphical form, along with aircraft photo missions, geography test sites, and FY-70.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 5 p
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  • 15
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    A review of application studies on Indian lands using NASA aerospace imagery (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Three remote sensing projects are being conducted on three different Indian reservations in eastern Arizona. On the Fort Apache Reservation, a multiband thermal and false color sensing of an Englemann spruce beetle infestation is being investigated on Mount Baldy, adjacent to a U.S. Forest Service proposed wilderness area. On the San Carlos Reservation, there is a joint USGS, EROS, and San Carlos tribe project to examine intensively a circular topographic feature noted on the Apollo 9 imagery. On the Papago Reservation, an EROS-funded contract will provide the Papago tribe with a report showing potential mineral areas, by comparing and correlating space imagery with high resolution imagery and aeromagnetic data.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 6 p
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  • 16
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    Geologic interpretation of Apollo 6 stereophotography from Baja California to west Texas (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Excellent space photography of parts of the southwestern United States and northwestern Mexico was obtained during the unmanned Apollo 6 spaceflight. Two features of this photography made it useful for geologic interpretations: its vertical stereocoverage and its exposure under a relatively low angle of solar illumination through an unusually cloud-free and clear atmosphere. The structural patterns, which were topographically enhanced by the longer shadows, were annotated on the photographs, in order to analyze their trends with respect to the continental tectonic framework, and to attempt to correlate the pattern with known copper or other base metal deposits. The annotated fracture patterns showed the regional trends and their distribution. The area studied was a 100- to 105-mile swath of terrain covering a total land area of approximately 60,000 square statute miles. The coverage began from a point centered on Punta Colnett on the Pacific coast of Baja California and extended to the Sacramento Mountains of New Mexico and west Texas.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 25 p
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  • 17
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    A study of passive microwave techniques applied to geologic problems (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Passive microwave techniques were applied to geologic problems, in order to establish the microwave properties of representative rocks and minerals, and to examine the feasibility of using microwave radiometry for geologic mapping problems. A review of microwave pertaining to geology was conducted, coupled with laboratory and field investigations of the microwave emission characteristics of various geologic features. The laboratory studies consisted of dielectric constant measurements of rocks and minerals. A majority of field investigations conducted in the western United States, involved the microwave emission charateristics of rock types, and a portion of the study was concerned with microwave properties of mineralized areas. Experiments were also conducted in the vicinity of a coal seam fire in Colorado and across the San Andreas Fault Zone near the Salton Sea, in Southern California.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 12 p
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  • 18
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    Geography program, design, structure and operational strategy (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The geography program is designed to move systematically toward a capability to increase remote sensing data into operational systems for monitoring land use and related environmental change. The problems of environmental imbalance arising from rapid urbanization and other dramatic changes in land use are considered. These overall problems translate into working level problems of establishing the validity of various sensor-data combinations that will best obtain the regional land use and environmental information. The goal, to better understand, predict, and assist policy makers to regulate urban and regional land use changes resulting from population growth and technological advancement, is put forth.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spececraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 9 p
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  • 19
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    Environmental application of remote sensing methods to coastal zone land use and marine resources management (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: The interrelationships of biophysical environmental systems are investigated. Social decision-making affecting the environments of a coastal megapolis are examined. Remote sensing from high altitude aircraft and satellites afforded a powerful and indepensible tool for inventory and planning for urban development. Repetitive low to medium altitude photography is also used for studying environmental dynamics, and to document the cultural impact of man on his environment.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 9 p
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  • 20
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    Relationship between vegetation reflectance spectra and soil geochemistry: New data from Catheart Mountain, Maine (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Spectral reflectance curves for red spruce and balsam fir in the 350- to 1100-nanometer region showed differences between specimens growing over and away from a concealed copper deposit at Catheart Mountain, Maine. A sample group of 15 anomalous spruce, 9 background spruce, 10 anomalous fir, and 10 background fir was studied. Measurements of copper and molybdenum contents in the supporting soil were used to categorize the trees as anomalous or background. Analyses using parametric and nonparametric statistical tests were performed to establish whether significant differences existed between the anomalous and background groups. At the 95% confidence level, significant differences were found to exist for both species, generally in the chlorophyll band centered at about 550 nanometers and in the region from 700 to 900 nanometers.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 9 p
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  • 21
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    Remote sensing in marine geology: Arctic to Caribbean (1970)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The applications of remote sensing to coastal dynamics of both nearshore and offshore waters are discussed. Results of aerial photographic analysis of four areas are presented. The study areas include the Arctic (Beaufort Sea), the Pacific Northwest, San Francisco Bay, and St. John, Virgin Islands (Project Tektite).
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 17 p
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  • 22
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    Multispectral analysis of limestone, dolomite, and granite, Mill Creek, Oklahoma (1970)
    In:  CASI
    Details
    Publication Date: 2005-11-30
    Description: Spectral reflectance and thermal emission data were collected at the Mill Creek, Oklahoma test site during NASA missions 132 and 133 in June 1970. The data were collected by three aircraft flown several times during the diurnal cycle at altitudes of 150 to 17,000 m above mean terrain. Reflectance of the main rock types (limestone, dolomite, and granite) was determined from the data collected using a 12-channel multispectral scanner during mission 133 and from thermal infrared images recorded during mission 132 on an RS-7 scanner from 17,000 m above terrain. A preliminary rock recognition map was generated automatically using data collected from 900 m above terrain. The discrimination provided by the map is reasonably accurate. Misidentification occurred in areas of unusually high dolomite reflectivity. High altitude thermal infrared (10 to 12 micrometers) images show regional folds and faults distinguished by the presence of thermally contrasting materials. Linear and curvilinear structural features two to three times smaller than the nominal 17 m resolution could be detected.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 114 p
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  • 23
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    Special projects of the geographic applications program (1970)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: Alternative uses were investigated for the Mississippi Test Facility since the phaseout of Saturn 5 engine testing. Using the facility for collecting remotely sensed data is suggested for regional studies. The capabilities of various remote sensing devices to detect, identify, monitor, or determine effects of environmental pollution are summarized. Which pollutants could be monitored from spacecraft, high and low altitude aircraft, and ground based platforms are determined. Examples of special processing and enhancement and analysis techniques used in connection with remote sensing data are provided.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 7 p
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  • 24
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    Climatology of urban regional systems (1970)
    In:  CASI
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    Publication Date: 2005-11-30
    Description: The combining of remote sensing technologies to urban-regional energy climatology is studied. It was found to be three dimensional with a mosaic urban surface, each smaller surface with its own radiant and thermal properties. Urban patterns of radiant exchange were found to be constantly changing during diurnal and annual cycles. Results were derived from Barbados data using remote methods for monitoring and mapping radiation. Isoline maps of terrestrial radiation patterns were made generalizing the minute patterns of the scan image.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 11 p
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  • 25
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    Geologic terrain mapping from earth-satellite and ultra-high aerial photographs (1970)
    In:  CASI
    Details
    Publication Date: 2005-01-18
    Description: A proposal is made for mapping from aerial photographs from the EROS program. Three kinds of maps (geomorphic or landform, soil, and surficial deposit) are being prepared at 1:250,000 scale for an 8000-square-mile area between Tucson and Ajo, Arizona. Nine cameras used on NASA mission 101 provided color, color infrared, and multispectral air photos from about 60,000 feet above the terrain and with photo scales ranging from 1:60,000 to 1:240,000. This area was selected because it provides a good sample of desert terrain and is suited for improving and testing the photointerpretive techniques for mapping geologic terrain features with small-scale photos.
    Keywords: GEOPHYSICS
    Type: NASA. Manned Spacecraft Center 3d Ann. Earth Resources Program Rev., vol. 1; 5 p
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  • 26
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    Classification of volcanoes of the Kane Patera Quadrangle of Io: Proportions of lava flows and pyroclastic flows (1984)
    In:  CASI
    Details
    Publication Date: 2009-11-16
    Description: Voyager 1 images show 14 volcanic centers wholly or partly within the Kane Patera quadrangle of Io, which are divided into four major classes: (1) shield with parallel flows; (2) shield with early radial fan shapd flows; (3) shield with radial fan shaped flows, surfaces of flows textured with longitudinal ridges; and (4) depression surrounded by plateau-forming scarp-bounded, untextured deposits. The interpretation attempted here hinges largely on the ability to distinguish lava flows from pyroclastic flows by remote sensing.
    Keywords: GEOPHYSICS
    Type: NASA, Washington Rept. of Planetary Geol. Program, 1983; p 127-129
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  • 27
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    Interpretation of planetary stress systems: Determination of tectonic over-printing in Northwest Wyoming (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Structural and tectonic interpretations of planetary surfaces rely strongly on visual determination of regional structural grain. This grain can be very complex and confusing, and sorting out of discrete trends in time and space is of utmost importance. This study is a test of these techniques applied to a well known area having several discrete structural grains. In the Bighorn Basin region of Wyoming, a largely overlooked N10E structural grain has been verified with detailed structural analysis and indicates a significant change in stress orientation at the end of the Laramide orogeny.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geology Program, 1983; p 307-309
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  • 28
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    Volcanism in the Valles Marineris (1984)
    In:  CASI
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    Publication Date: 2006-04-06
    Description: Tectoism in the Valles Marineris appears to have been accompanied by volcanism. The proposed volcanic features, though probably contemporaneous with the gigantic ones in the Tharsis area, are composed of small, mafic and, possibly, somewhat larger felsic flows. The size of these features is similar to that of volcanic flows on the Earth.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 135-137
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  • 29
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    Experiments on water/melt explosions, nature of products, and models of dispersal (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Experiments were carried out in a steel pressure device using controlled amounts of water and thermite melt to examine the mechanical energy released on explosive mixing following the initial contact of the two materials. An experimental design was used to allow the direct calculation of the mechanical energy by the dynamic lift of the device as recorded both optically and physically. A large number of experiments were run to accurately determine the optimum mixture of water and melt for the conversion of thermal to mechanical energy. The maximum efficiency observed was about 12% at a water/thermite mass ratio of 0.50. These experiments are the basis for the development of models of hydroexplosions and melt fragmentation. Particles collected from the experimental products are similar in size and shape to pyroclasts produced by much larger hydrovolcanic explosions. Melt rupture at optimum ratios produces very fine particles whereas rupture at high or low water/melt ratios produces large melt fragments. Grain surface textures in the experimental products are also related to the water/melt ratio and the mechanism of explosive mixing. It is thus possible to have qualitative information about the nature of the explosion from the sizes and shapes of the fragments produced.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 144-146
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  • 30
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    The artificial aurora experiment (1970)
    In:  CASI
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    Publication Date: 2006-04-25
    Description: Failure of rocket flown electron accelerator to create artificial aurora
    Keywords: GEOPHYSICS
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 58-62
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  • 31
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    The heating of the chromosphere (1970)
    In:  CASI
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    Publication Date: 2006-04-25
    Description: Collisional processes for determining kinetic temperature distribution and heating of chromosphere
    Keywords: GEOPHYSICS
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 111-113
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  • 32
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    Strongly damped gravity waves in the earth's atmosphere (1970)
    In:  CASI
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    Publication Date: 2006-04-25
    Description: Atmospheric model with damped gravity waves from vertical atmospheric sounding analyses
    Keywords: GEOPHYSICS
    Type: NIFICANT ACCOMPLISHMENTS IN SCI. AND TECHNOL. AT GODDARD SPACE FLIGHT CENTER 1970; P 38-40
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  • 33
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    Mercury: Topographic and geologic data from Earth-based radar observations (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Significant new geologic information has been revealed by comparing 1:5 million scale geologic maps of the equatorial zone quadrangles of Mercury (H-6, H-7 and H-8) to Earth-based elevation profiles and surface reflectivity maps of Mercury obtained in the early 1970's at the Arecibo (PR) and Goldstone (CA) radar facilities. These data consist of 23 Goldstone images and profiles of polarized return data at 12.5-cm wavelength and one Arecibo profile. Radar data with 150-m vertical accuracy and 10- to 20-km horizontal resolution are available for areas between latitudes 13 N. and 11 S. In general, these data sets show excellent correlation between: (1) relative elevation and roughness differences that are reflected by mapped geologic contacts; (2) mapped ridges and scarps that display distinctive radar signatures; and (3) position and morphology of crater-and-basin topographic elements. Inferences can also be drawn about topographic and geologic terrain beyond the area imaged by Mariner 10 cameras.
    Keywords: GEOPHYSICS
    Type: NASA, Washington Rept. of Planetary Geology Program, 1983; p 287
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    A regression model for the temporal development of soil pipes and associated gullies in the alluvial-fill valley of the Rio Puerco, central New Mexico (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: On Mars, the association of gullied escarpments and chaotic terrain is evidence for failure and scarp retreat of poorly consolidated materials. Some martian gullies have no surface outlets and may have drained through subterranean channels. Similar features, though on a much smaller scale, can be seen in alluvium along terrestrial river banks in semiarid regions, such as the Rio Puerco Valley of central New Mexico. Many of the escarpments along the Rio Puerco are developing through formation of collapse gullies, which drain through soil pipes. Gully development can be monitored on aerial photographs taken in 1935, 1962, and 1980. A regression model was developed to quantify gully evolution over a known time span. Soil pipes and their associated collapse gullies make recognizable signatures on the air photos. The areal extent of this signature can be normalized to the scarp length of each pipe-gully system, which makes comparisons between systems possible.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Programs; p 196-197
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  • 35
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    Fluvial erosion of impact craters: Earth and Mars (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Geomorphic studies of impact structures in central Australia are being used to understand the complexities of fluvial dissection in the heavily cratered terrains of Mars. At Henbury, Northern Territory, approximately 12 small meteorite craters have interacted with a semiarid drainage system. The detailed mapping of the geologic and structural features at Henbury allowed this study to concentrate on degradational landforms. The breaching of crater rims by gullies was facilitated by the northward movement of sheetwash along an extensive pediment surface extending from the Bacon Range. South-facing crater rims have been preferentially breached because gullies on those sides were able to tap the largest amounts of runoff. At crater 6 a probable rim-gully system has captured the headward reaches of a pre-impact stream channel. The interactive history of impacts and drainage development is critical to understanding the relationships in the heavily cratered uplands of Mars. Whereas Henbury craters are younger than 4700 yrs. B.P., the Gosses Bluff structure formed about 130 million years ago. The bluff is essentially an etched central peak composed of resistant sandstone units. Fluvial erosion of this structure is also discussed.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Programs; p 175-177
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    Distribution and properties of small volcanoes in Acidalia Planitia (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Eastern Acidalia Planitia contains a wide variety of terrain types on which are thousands of subkilometer volcanoes. Apparent morphometric variations were previously reported as a function of terrain type for the cones in the Cydonia area and extended to the rest of Acidalia for which high resolution Viking imagery exist. Crater counts are included for the six types of plains identified, density distributions of subkilometer cones found on each type of terrain, and orphometric data by morphological subclass as a function of terrain for more than 1400 cones.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 130-132
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    East Butte: A volcanic dome of the Eastern Snake River Plain, Idaho (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Preliminary mapping shows East Butte to be a single, large cumulo-dome composed dominantly of rhyolite which can be classified into three main groups based on color and structure. The rhyolite of East Butte is aphanitic with phenocrysts of sanidine and quartz which vary from 1 to 5 mm in length. Vesicular reddish black inclusions of basalt up to 10 cm in length, found in all varieties of the East Butte rhyolites are believed to have originated from fragmentation of the basalt walls of the conduit by rhyolitic magma as it was emplaced. Most of the inclusions contain plagioclase phenocrysts. These phenocrysts measure up to 1 to 2 cm in length and have a typical euhedral, tabular habit. A 250-m diameter depression which has the appearance of a crater is located at the top of East Butte. Evidence supporting the fact that the depression is a crater is displayed by three small (3 to 5 m in height) mounds of massive rhyolite which border the depression.
    Keywords: GEOPHYSICS
    Type: NASA, Washington Rept. of Planetary Geol. Program, 1983; p 121-124
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  • 38
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    The 1950 sulfur flow of Mauna Loa: Considerations for Io (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Some of the geological relationships observed in the Mauna Loa sulfur flow may apply in considering volcanic processes on Io. Given the presence of sulfur/sulfur compounds in the eruption plumes and on the surface of Io, it is likely that extensive secondary deposits of sulfur exist, some of which may be of fumarolic origin and analogous to the Mauna Loa deposit. Given the likelihood of silicate volcanism of Io based on the inferred material properties of some flows, and the attendant high temperatures for silicate volcanism, it is likely that the secondary surface deposits of sulfur would have been mobilized without being heated to the high viscosity stage. Mobilized sulfur flows on Io may flow long distances as a result of: (1) low viscosities in the melting range; (2) sustained effusion resulting from continued heating source area; (3) continued remobilization within the flow as a consequence of surges from the source; and (4) extension via lava tubes, or similar conduits through which there is little heat loss. Sulfur flows may form a relatively thin veneer over silicate flows and other surface units, given their fluidity and low mobilization temperature. Active splashing and splattering may spread sulfur over a wider area contributing the bright blooms observed in association with some Ionian flows.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 133-134
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  • 39
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    Temporal and spatial distribution of exhumed topography (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Perhaps the greatest chance for exhumation, or burial, of a landscape by terrestrial processes exists near the boundaries of the climatic belts. In the Southern Hemisphere, there is comparatively little land area within Budel's zone of extra-tropical valley formation, which contains most of the examples of exhumed topography in the Northern Hemisphere. The only examples of resurrected landforms that occur within Budel's tropical zone are located near the boundary of this zone, where climate may have changed during the Pleistocene. The ages of exhumed landforms sampled are not equally distributed through geologic time. Most of the exhumed features were created either during the Precambrian or the Tertiary periods which are commonly cited as episodes of significant landform development.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geology Program, 1983; p 240-242
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  • 40
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    Salts in the dry valleys of Antartica (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: The Dry Valleys of Antarctica are examples of polar deserts which are rare geological features on the Earth. Such deserts typically have high salinities associated with their closed-basin waters and on many surficial materials throughout them. In order to examine the possible sources for the salts observed in association with the soils in the Dry Valleys. The chloride and bromide concentrations of the water leachates from 58 soils and core samples were measured. The Cl/Br ratio for seawater is 289 and ratios measured for most of the 58 soils studied (greater than 85% of the soils studied) was larger than the seawater ratio (ratios typically were greater than 1000 and ranged up to 50,000). The enrichment in Cl relative to Br is strong evidence that the alts present within the soils were derived from seawater during ordinary evaporation processes, and not from the deposition of Cl and Br from aerosols or from rock weathering as has often been suggested.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Repts. of Planetary Geol. Program; p 219-221
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  • 41
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    Planetary geomorphology field studies: Washington and Alaska (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Field studies of terrestrial landforms and the processes that shape them provide new directions to the study of planetary features. Investigations discussed address principally mudflow phenomena and drainage development. At the Valley of 10,000 Smokes (Katmai, AK) and Mount St. Helens, WA, studies of the development of erosional landforms (in particular, drainage) on fresh, new surfaces permitted analysis of the result of competition between geomorphic processes. Of specific interest is the development of stream pattern as a function of the competition between perennial seepage overland flow (from glacial or groundwater sources), ephemeral overland flow (from pluvial or seasonal melt sources), and ephemeral/perennial groundwater sapping, as a function of time since initial resurfacing, material properties, and seasonal/annual environmental conditions.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Programs; p 194-195
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  • 42
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    Desert pavement study at Amboy, California (1984)
    In:  CASI
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    Publication Date: 2006-04-06
    Description: Desert pavement is a general term describing a surface that typically consists of a thin layer of cm-sized rock fragments set on top of a layer of finer material in which no fragments are found. An understanding of desert pavement is important to planetary geology because they may play a major role in the formation and visibility of various aeolian features such as wind streaks, which are important on Mars and may be important on Venus. A field study was conducted in Amboy, California to determine the formation mechanism of desert pavements. The probable sequence of events for the formation and evolution of a typical desert pavement surface, based on this experiment and the work of others, is as follows. Starting with a layer of surface material consisting of both fine particles and rock fragments, aeolian deflation will rapidly erode the surface until an armored lag is developed, after which aeolian processes become less important. The concentration of fragments then slowly increases as new fragments are brought to the surface from the subsurface and as fragments move downslope by sheet wash. Sheet wash would be responsible for removing very fine particles from the surface and for moving the fragments relative to one another, forming interlocks.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Programs; p 169-170
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  • 43
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    Planetary geomorphology field studies: Iceland and Antarctica (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Field studies of terrestrial landforms and the processes that shape them provide new directions to the study of planetary features. These studies, conducted in Iceland and in Antarctica, investigated physical and chemical weathering mechanisms and rates, eolitan processes, mudflow phenomena, drainage development, and catastrophic fluvial and volcanic phenomena. Continuing investigations in Iceland fall in three main catagories: (1) catastrophic floods of the Jokulsa a Fjollum, (2) lahars associated with explosive volcanic eruptions of Askja caldera, and (3) rates of eolian abrasion in cold, volcanic deserts. The ice-free valleys of Antarctica, in particular those in South Victoria Land, have much is common with the surface of Mars. In addition to providing independent support for the application of the Iceland findings to consideration of the martian erosional system, the Antarctic observations also provide analogies to other martian phenomena. For example, a family of sand dunes in Victoria Valley are stabilized by the incorporation of snow as beds.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geology Program, 1983; p 231-233
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  • 44
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    Quantitative and experimental modelling of sapping networks (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Development of drainage networks by erosion by emergent groundwater (sapping) is being modelled by a combination of laboratory experiments and theoretical modelling. Miniature drainage networks formed in fine-grained sediments share many morphologic characteristics of Martian and terrestrial networks suspected to be formed by sapping processes. A larger and better instrumented sapping box was constructed to further explore the processes of sapping and the morphology of resulting networks. The experiments to be conducted in the sapping box will investigate the roles of several factors in controlling network morphology. The mechanics of sapping of fine-grained sediments were investigated in experiments in a two-dimensional sapping chamber and through development of a theoretical model. Results of extensive tests on sapping erosion of fine-grained, cohesionless sediment were analyzed with a theoretical model of the mechanics of sapping erosion and transport.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Programs; p 191-193
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  • 45
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    Drainage evolution in the debris avalanche deposits near Mount Saint Helens, Washington (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: The 18 May 1980 eruption of Mount St. Helens was initiated by a massive rockslide-debris avalanche which completely transformed the upper 25 km of the North Fork Toutle River valley. The debris was generated by one of the largest gravitational mass movements ever recorded on Earth. Moving at an average velocity of 35 m/s, the debris avalanche buried approximately 60 sq km of terrain to an average depth of 45 m with unconsolidated, poorly sorted volcaniclastic material, all within a period of 10 minutes. Where exposed and unaltered by subsequent lahars and pyroclastic flows, the new terrain surface was characterized predominantly by hummocks, closed depressions, and the absence of an identifiable channel network. Following emplacement of the debris avalanche, a complex interrelationship of fluvial and mass wasting processes immediately began operating to return the impacted area to an equilibrium status through the removal of material (potential energy) and re-establishment of graded conditions. In an attempt to chronicle the morphologic evolution of this unique environmental setting, a systematic series of interpretative maps of several selected areas was produced. These maps, which document the rate and character of active geomorphic processes, are discussed.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Programs; p 179-181
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  • 46
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    Ridges on basalt flows (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Pressure ridges are surface features on basaltic lava flows and, as with other surface features, they may be related to the emplacement of a flow and the rheological properties of the lava. Since many ridges are of sufficient size to be detected on high resolution orbital images, an understanding of pressure ridges could provide a means for interpreting volcanic flows on other terrestrial planets. Some proposed formation mechanisms are reviewed and three different types of pressure ridges are identified on the basis of morphology. Type 1 ridges are the most common and are associated with multiple flow unit pahoehoe in which the ridges are embayed by secondary toe fed lava. They tend to be restricted to wider sections or margins of the flow and to be oriented longitudinal to flow direction; however, oblique or transverse orientation is not uncommon. Bulbous squeeze ups are common within cracks and may reflect relative timing of crack formation. The interior structure of type 1 ridges consists of an upper slab section which generally contains columnar joints and a lower massive section with an irregular surface. This basic distinction may mark the thickness of the surface crust when ridge formation was initiated. Type 2 ridges occur in association with type 1 and are very similar with the exception of the secondary squeeze out material. Instead of only filling cracks, the secondary material on these ridges originated from underneath a thin crust and flowed as toes or channels from the top and sides of the ridge. Type 3 ridges have much steeper sides (almost vertical at the top) than the other types. Medial cracks are very wide and the crack walls are convex upward. No squeeze ups are present. The main difference between type 3 and the others may be reflection of viscosity.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 147-148
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  • 47
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    Effusion rate, length, and area relationships for some lava flows on Hawaii and Mount Etna with planetary implications (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: A model for the radiative cooling of thermally well mixed lava flows is presented and the relationship between effusion rate and length and area is analyzed. If radiative cooling is the prime mode of heat loss for a lava flow, one should expect to see a stronger correlation between the effusion rate and the plan area of the flow, than between effusion rate and just flow length. Different flows on a single volcano with differing initial temperatures, volatile content, and gross compositions should yield different areas for a given effusion rate. Likewise, a range of slopes for the relationship between effusion rate and flow area should result from comparisons between different volcanoes. As a test of these ideas, available data on the effusion rates, lengths, and areas of Hawaiian and Etnean flow is studied. It was found that: (1) the effusion rate/area correlation was statistically more significant than the correlation between effusion rate and length for four out of the five eruption episodes which met the necessary criteria of more than three individual flows with area, length, and effusion rate independently measured; (2) that there exists a minimum length and area for a given effusion rate, reflecting competition between overall characteristic proportionality between effusion rate and flow length, width, and area.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 141-143
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  • 48
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    Chronology, morphology and stratigraphy of pumiceous pyroclastic-flow (ignimbrite) deposits from the eruption of Mount St. Helens on 18 May 1983 (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Between 1217 and 1620 hours (PDT), on May 18, 1980, the magmatic eruption column of Mount St. Helens formed an ash fountain and pyroclastic flows dominated the eruption process over tephra ejection. Eurption-rate pulsations generally increased to a maximum at 1600 to 1700 hrs. After 1620 hrs, the eruption assumed an open-vent discharge with strong, vertical ejection of tephra. Relative eruption rates (relative mass flux rates) of the pyroclastic flows were determined by correlating sequential photographs and SLAR images, obtained during the eruption, with stratigraphy and surface morphology of the deposits.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 125-126
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  • 49
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    Impact of Upheaval Dome, Utah (1984)
    In:  CASI
    Details
    Publication Date: 2006-04-06
    Description: Reexamination of Upheaval Dome in the Canyonlands National Park, Utah, shows that the structure of this remarkable feature conforms with that expected for a deeply eroded astrobleme. The structure is definitely not compatible with an origin due simply to plastic flowage of salt and other rocks in the underlying Paradox Formation. The most strongly deformed rocks are bounded by a series of circumferential listric faults. The convergent displacement of the rocks corresponds to the deformation that results from collapse of a transient cavity produced by high speed impact. From considerations of the probable depth of exposure of the impact structure and upward extrapolation of the listric faults, the final collapsed crater is estimated to be about 8 to 10 km in diameter; the impacting body was on the order of 0.5 km in diameter.
    Keywords: GEOPHYSICS
    Type: NASA. Washington Rept. of Planetary Geol. Program, 1983; p 93
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  • 50
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    A low Earth orbit molecular beam space simulation facility (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A brief synopsis of the low Earth orbit (LEO) satellite environment is presented including neutral and ionic species. Two ground based atomic and molecular beam instruments are described which are capable of simulating the interaction of spacecraft surfaces with the LEO environment and detecting the results of these interactions. The first detects mass spectrometrically low level fluxes of reactively and nonreactively surface scattered species as a function of scattering angle and velocity while the second ultrahigh velocity (UHV) molecular beam, laser induced fluorescence apparatus is capable of measuring chemiluminescence produced by either gas phase or gas-surface interactions. A number of proposed experiments are described.
    Keywords: GEOPHYSICS
    Type: NASA. Goddard Space Flight Center 13th Space Simulation Conf.; p 193-204
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  • 51
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    Introduction to simulation of upper atmosphere oxygen satellite exposed to atomic oxygen in low Earth orbit (1984)
    In:  CASI
    Details
    Publication Date: 2006-02-14
    Description: A brief review of atmospheric composition in low Earth orbit is presented. The flux of ambient atomic oxygen incident on a surface orbiting in this environment is described. Estimates are presented of the fluence of atomic oxygen to which satellite surfaces in various orbits are exposed.
    Keywords: GEOPHYSICS
    Type: NASA. Goddard Space Flight Center 13th Space Simulation Conf.; p 133-145
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  • 52
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    Modeling of the surface static displacements and fault plane slip for the 1979 Imperial Valley earthquake (1984)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Three-dimensional finite element modeling techniques are used to synthesize geodetic and seismological results for 1979 Imperial Valley earthquake. The strategy pursued consists of two principal steps. In the first step, the seismologically-derived coseismic fault slip is taken as a function of position in the fault plane and is applied directly to the three-dimensional dislocation model. In the second step, a physical model of stresses and constitutive parameters is perturbed so as to reproduce the observed fault slip. Hence, the principal features of the coseismic slip pattern are explained by a stress-driven fault model in which: (1) a spatially unresolved asperity is found equivalent to a stress drop of 18 MPa averaged over an area of 15 sq km, and (2) driving stress is essentially absent on the fault segment overlapping the 1940 earthquake rupture zone.
    Keywords: GEOPHYSICS
    Type: Seismological Society of America, Bulletin (ISSN 0037-1106); 74; 2413-243
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  • 53
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    Effect of motion on the altitude distribution of atmospheric density (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Motion effects on atmospheric density altitude distribution, discussing vertical waves, gravity, temperature and winds
    Keywords: GEOPHYSICS
    Type: ; 9-12, 15 (
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  • 54
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    Observation of the suprathermal electron flux and the electron temperature at high latitudes (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Suprathermal electron flux and temperature in 5-200 eV range at high latitude with Explorer 31 potential analyzer
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 55
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    The effect of electric fields on the F-region behaviour as compared with neutral wind effects (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: F region diurnal behavior, comparing neutral winds and electric field effects
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 56
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    Moessbauer spectroscopy of coal-related minerals (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Comparison of iron 57 Mossbauer spectra of iron containing compounds and coal
    Keywords: GEOPHYSICS
    Type: NUCL. CHEM. AND GEOCHEM. RES. 30 JUN. 1970; P 31-36
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  • 57
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    The ionospheric response to internal gravity waves. I (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: F 2 region anisotropic response to individual internal gravity waves as function of propagation azimuth
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 58
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    Parametric wave amplification and mixing in the ionosphere (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Ionospheric parametric amplification and frequency mixing due to polarized TEM waves nonlinear interaction with longitudinal electrostatic waves
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 59
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    Auroral arcs - Result of the interaction of a dynamic magnetosphere with the ionosphere (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Auroral arcs formation model based on dynamic magnetosphere-ionosphere interaction
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 60
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    Magnetic and electric fields in the magnetosheath (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Steady state magnetic and electric fields in magnetosheath by linear superposition of field vectors, using axisymmetric velocity function from gas dynamics
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 61
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    Relationship of geomagnetic fluctuations to other magnetospheric phenomena (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Geomagnetic fluctuations relationship to magnetospheric ring current and plasmapause during magnetic storm
    Keywords: GEOPHYSICS
    Type: ; STITUTION OF RADIO A
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  • 62
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    Electric field observations of ionospheric whistlers (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Whistler mode wave propagation amplitude, polarization and dispersion in lower ionosphere, discussing electric field experiment with Nike- Tomahawk sounding rocket
    Keywords: GEOPHYSICS
    Type: ; STITUTION OF RADIO A
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  • 63
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    Sequence of diffuse plasma resonances observed on Alouette 2 ionograms (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Diffuse plasma resonance sequence observed on Alouette 2 ionograms, showing pattern similar to spread echo
    Keywords: GEOPHYSICS
    Type: ; STITUTION OF RADIO A
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  • 64
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    Pressure balance across the distant magnetopause (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Pressure conditions across distant magnetopause from interplanetary magnetic field measurements, comparing Pioneer 7 plasma data with Explorer 33 distant geomagnetic tail field magnitudes
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 65
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    Electron and ion temperatures in the ionosphere (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Electron and ion temperature in ionosphere, discussing measurements, solar heating, F and E region, variability over solar cycle, etc
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 66
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    On geomagnetic tail structure near the null sheet (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Geomagnetic tail structure near null sheet, indicating decrease and/or dissipation of plasma sheet particle energy density at lunar distances
    Keywords: GEOPHYSICS
    Type: ; VIGATION (
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  • 67
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    Comparison of tektite population polygons of bulk specific gravity, true material specific gravity, and refractive index (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Australian tektites population polygons of bulk specific gravity and refractive index, indicating variations in chemical composition
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 68
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    A polar maximum of electron concentration at 1000 km altitude (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Upper ionosphere electron concentration enhancement in polar cap from satellite probe measurements
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 69
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    Ionospheric observations during the annular solar eclipse of 20 May 1966. V - Interpretation of observed results (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Ionospheric Lyman alpha intensities and electron and positive ion densities during solar eclipse of 20 May 1966, discussing recombination model
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 70
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    Regionalized earth models (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Regionalized models for earth with oceanic, shield or tectonic crust and upper mantle, taking phase velocities into consideration
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 71
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    Magnetic-field fluctuations in the magnetosheath observed by Pioneers 7 and 8 (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Magnetic field fluctuations in magnetosheath from Pionner observations, noting bow shock correlation
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 72
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    GEOS-C plans (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Constraints and proposed instrumentation for GEOS-C satellite
    Keywords: GEOPHYSICS
    Type: PROC. OF THE GEOS-2 PROGRAM REV. MEETING, VOL. 4 NOV. 1970; P 165-170
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  • 73
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    The infrared interferometer experiment on Nimbus 3 (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Thermal emission spectra of earth and atmosphere from IR Michelson interferometer onboard Nimbus 3 satellite
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 74
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    An airborne measurement of the salinity variations of the Mississippi River outflow (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Microwave radiometric airborne measurement of salinity of Mississippi River outflow, using P3A aircraft
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 75
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    The thermospheric density variations as an oscillator circuit system (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Thermospheric density variations as equivalent oscillator circuit system, applying to atmospheric tides
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 76
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    The influence of ammonia-induced cellular discoloration with cotton leaves (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Cotton leaves ammonia induced discoloration spectrophotometric examination, discussing light reflectance, transmittance and absorptance
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 77
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    A note on the use of sea surface temperature for observing ocean currents (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Sea surface temperature relationship with ocean currents, using bathythermograph data
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 78
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    The diurnal phase anomaly in the upper atmospheric density and temperature (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Upper atmospheric density and temperature diurnal phase and amplitude discrepancy reconciled by dynamic diffusion model
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 79
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    Energy transfer from N2/A super 3 sigma sub u/plus// as a source of O/super 1 S/ in the aurora (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Nitrogen deactivation by ground state atomic oxygen resulting in metastable oxygen atom as auroral green line source
    Keywords: GEOPHYSICS
    Type: ; STITUTION OF ENGINEE
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  • 80
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    Rocket measurements showing removal of electrons above the mesopause in summer at high latitude (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Rocket measurements showing removal of electrons above mesopause in summer at high latitude
    Keywords: GEOPHYSICS
    Type: ; STITUTION OF ENGINEE
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  • 81
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    Evaluation of electron density from VLF Doppler measurements in a rocket (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Electron density measurements in lower ionosphere by narrow band VLF receiver flown in Tomahawk rocket during quiet daytime
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 82
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    Configuration of the geomagnetic tail during substorms (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Geomagnetic tail configuration during substorms from Imp 4 magnetic field and auroral index measurements
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 83
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    Rare earth concentrations in zircons and apatites and their host dacites and granites (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Rare earth element concentrations in zircons and apatites separated from dacites and granites, explaining partition coefficients between phenocrysts and groundmass by crystal structure
    Keywords: GEOPHYSICS
    Type: ; VUE SCIENTIFIQUE ET
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  • 84
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    Noctilucent cloud observation in connection with the flight of a sounding rocket (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Photographic observation of noctilucent cloud occurrence over geographical location during sounding rocket flight
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 85
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    Examination of surfaces exposed to a noctilucent cloud, August 1, 1968 (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Noctilucent cloud particle size composition and origin from sounding rocket flight and control collecting surfaces
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 86
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    Stationary waves produced by the earth's bow shock (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Stationary waves produced by earth bow shock, calculating cyclotron radiation amplitude and polarization characteristics by thin current sheet model
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 87
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    Mean effective optical constants of thirteen kinds of plant leaves (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Plant leaves mean effective optical constants from diffuse UV reflectance and transmittance measurements
    Keywords: GEOPHYSICS
    Type: ; UGREVUE(
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  • 88
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    BOMEX participants information exchange (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Current status of BOMEX experiments
    Keywords: GEOPHYSICS
    Type: BOMEX BULL., NO. 6 MAR. 1970; P 42-60
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  • 89
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    The ionospheric electron content as determined from Faraday rotation measurements of an earth satellite and deep space probe (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Ionospheric electron content from Faraday rotation measurements of ATS 1 and Pioneer 7 space probe
    Keywords: GEOPHYSICS
    Type: Max-Planck-Inst. fuer Aeronomie Future Appl. of Satellite Beacon Expt.; 10 p
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  • 90
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    New data on guildite (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: X ray powder and chemical data on monoclinic secondary mineral guildite from mine fire at Jerome site
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 91
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    Latitudinal dependence of the diurnal density variation (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Diurnal atmospheric density variations latitude dependence from satellite data
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 92
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    Electron density and electron flux in a glow aurora (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Lower E region recombination coefficients from electron density and flux measurements in glow aurora by Nike-Apache rocket
    Keywords: GEOPHYSICS
    Type: ; YSICA STATUS SOLIDI
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  • 93
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    The measurement of solar spectral irradiance at different terrestrial elevations (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Solar spectral irradiance measurements at different altitudes, using multichannel radiometers
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 94
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    A new statistical method of estimating surface radiances from corresponding satellite window- channel radiances (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Stepwise linear regressions method for estimating black body surface radiances from model atmospheres and corresponding simulated Nimbus 2 window-channel radiances
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 95
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    Non-local thermodynamic equilibrium in cloudy planetary atmospheres (1970)
    In:  Other Sources
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    Publication Date: 2011-08-16
    Description: Cloudy planetary atmospheres model, assessing nonlocal thermodynamic equilibrium role
    Keywords: GEOPHYSICS
    Type: ; TROPHYSICAL JOURNAL
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  • 96
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    Organic phosphate compounds in water extracts of soils (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: P32 labeled organic phosphate esters in water extracts of soil
    Keywords: GEOPHYSICS
    Type: ; 47 (
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  • 97
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    Remote sensing of atmospheric ozone using the 9.6-micron band (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Atmospheric ozone remote sensing by high resolution IR interferometer spectrometer /IRIS/ aboard Nimbus 3 satellite
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 98
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    Magnetic anomalies from satellite magnetometer (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Proton magnetometer measurements from satellite Cosmos 49, observing residual and broad magnetic anomalies
    Keywords: GEOPHYSICS
    Type: ; ADEMIE DES SCIENCES
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  • 99
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    A sequence of rocket observations of night-time sporadic-E (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Nighttime E region structure variations observed by Wallops Island rocket flights, obtaining electron density profiles by Langmuir probe during ascent
    Keywords: GEOPHYSICS
    Type: ; YAL SOCIETY (
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  • 100
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    Remote-sensing investigations near Mill Creek, Oklahoma (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Remote sensing for geologic problems, using side- looking radar for fracture and fault detection and IR images for limestone, dolomite and granite discrimination
    Keywords: GEOPHYSICS
    Type: ; IBRATIONAL COMBUSTIO
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