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  • 1
    Publication Date: 2019-03-12
    Description: The purpose of the handbook is to update the various snowcover interpretation techniques, document the snow mapping techniques used in the various ASVT study areas, and describe the ways snowcover data have been applied to runoff prediction. Through documentation in handbook form, the methodology developed in the Snow Mapping ASVT can be applied to other areas.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TP-1829 , NAS 1.60:1829 , REPT-81F0067-VOL-8
    Format: application/pdf
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  • 2
    Publication Date: 2016-03-07
    Description: The author has identified the following significant results. Methods of detecting ice and for distinguishing between ice and clouds are discussed, and examples of ERTS-1 data showing ice distributions in northern Hudson Bay, M'Clure Strait, the eastern Beaufort Sea, and the Greenland Sea are presented. The results of the initial analysis of ERTS-1 data indicate that the locations of ice edges and ice concentrations can be accurately mapped, and that considerable information on ice type can be derived through use of the various spectral bands. Ice features as small as 80 to 100 m width can be mapped.
    Keywords: GEOPHYSICS
    Type: NASA-CR-131242 , E73-10447
    Format: application/pdf
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  • 3
    Publication Date: 2013-08-31
    Description: In support of the Southeastern Virginia Urban Plume Study (SEV-UPS), GOES satellite imagery was analyzed for the month of August 1979. The analyzed GOES images provide an additional source of meteorological input useful in the evaluation of air quality data collected during the month long period of the SEV-UPS experiment. In addition to the imagery analysis, GOES digitized data were analyzed for the period of August 6 to 11, during which a regional haze pattern was detectable in the imagery. The results of the study indicate that the observed haze patterns correspond closely with areas shown in surface based measurements to have reduced visibilities and elevated pollution levels. Moreover, the results of the analysis of digitized data indicate that digital reflectance counts can be directly related to haze intensity both over land and ocean. The model results agree closely with the observed GOES digital reflectance counts, providing further indication that satellite remote sensing can be a useful tool for monitoring regional elevated pollution episodes.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: A-533F , NASA-CR-165656
    Format: application/pdf
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  • 4
    Publication Date: 2017-06-27
    Description: Data analyses of Tiros and Nimbus radiometric observations
    Keywords: METEOROLOGY
    Type: NASA-CR-92544 , REPT.-9G30-F
    Format: application/pdf
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  • 5
    Publication Date: 2017-06-26
    Description: Sea surface temperature determination feasibility using satellite infrared data
    Keywords: GEOPHYSICS
    Type: NASA-CR-474
    Format: application/pdf
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  • 6
    Publication Date: 2016-06-07
    Description: The purpose of this investigation is to evaluate the application of ERTS data for mapping snow cover, primarily in the mountainous areas of the western United States. The specific objectives are to determine the spectral interval most suitable for snow detection, to determine the accuracy with which snow lines can be mapped in comparison with the accuracies attainable from other types of measurements, and to develop techniques to differentiate reliably between snow and clouds and to understand the effects of terrain and forest cover on snow detection.
    Keywords: GEOPHYSICS
    Type: PAPER-W18 , NASA. Goddard Space Flight Center Symp. on Significant Results obtained from the ERTS-1, Vol. 1, Sect. A and B; p 855-862
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  • 7
    Publication Date: 2016-06-07
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA. Goddard Space Flight Center Operational Appl. of Satellite Snowcover Observations; p 1-19
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  • 8
    Publication Date: 2016-06-07
    Description: This investigation is to evaluate the application of ERTS data for detecting and mapping Arctic sea ice. The specific objectives are to determine the spectral bands most suitable for detecting ice, to measure the scale and types of ice features that can be detected, and to develop interpretive techniques for differentiating ice from clouds and for mapping ice concentrations. The ERTS data are being analyzed primarily for three Arctic areas, the eastern Beaufort Sea, Baffin Bay, and the Greenland Sea.
    Keywords: GEOPHYSICS
    Type: PAPER-M14 , NASA. Goddard Space Flight Center Symp. on Significant Results obtained from the ERTS-1 Vol. 1, Sect. A and B; p 1377-1384
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  • 9
    Publication Date: 2017-07-01
    Description: Nimbus 2 APT photographs used to determine rate of ice disintegration and dispersion over Hudson Bay
    Keywords: GEOPHYSICS
    Type: NASA-CR-106478 , TR-8 , REPT-9G45-31
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  • 10
    Publication Date: 2006-03-23
    Description: Because of the effect of sea ice on the heat balance of the Arctic and because of the expanding economic interest in arctic oil and other minerals, extensive monitoring and further study of sea ice is required. The application of ERTS data for mapping ice is evaluated for several arctic areas, including the Bering Sea, the eastern Beaufort Sea, parts of the Canadian Archipelago, and the Greenland Sea. Interpretive techniques are discussed, and the scales and types of ice features that can be detected are described. For the Bering Sea, a sample of ERTS imagery is compared with visual ice reports and aerial photography from the NASA CV-990 aircraft.
    Keywords: GEOPHYSICS
    Type: PAPER-M10 , NASA. Goddard Space Flight Center 3d ERTS-1 Symp., Vol. 1, Sect. B; p 1453-1465
    Format: text
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