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  • EARTH RESOURCES AND REMOTE SENSING  (23)
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  • 1
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    Statistical analysis of Thematic Mapper Simulator data for the geobotanical discrimination of rock types in southwest Oregon (1984)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: An evaluation of Thematic Mapper Simulator (TMS) data for the geobotanical discrimination of rock types based on vegetative cover characteristics is addressed in this research. A methodology for accomplishing this evaluation utilizing univariate and multivariate techniques is presented. TMS data acquired with a Daedalus DEI-1260 multispectral scanner were integrated with vegetation and geologic information for subsequent statistical analyses, which included a chi-square test, an analysis of variance, stepwise discriminant analysis, and Duncan's multiple range test. Results indicate that ultramafic rock types are spectrally separable from nonultramafics based on vegetative cover through the use of statistical analyses.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: IEEE Transactions on Geoscience and Remote Sensing (ISSN 0196-2892); GE-22; 525-530
    Format: text
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  • 2
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    The use of remote sensing imagery for environmental land use and flood hazard mapping (1976)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Flood hazard maps have been constructed for Graham, Yuma, and Yavapai Counties in Arizona using remote sensing techniques. Watershed maps of priority areas were selected on the basis of their interest to the county planning staff and represented areas of imminent or ongoing development and those known to be subject to inundation by storm runoff. Landsat color infrared imagery at scales of 1:1,000,000, 1:500,000, and 1:250,000 was used together with high-altitude aerial photography at scales of 1:120,000 and 1:60,000 to determine drainage patterns and erosional features, soil type, and the extent and type of ground cover. The satellite imagery was used in the form of 70 mm chips for enhancement in a color additive viewer and in all available enlargement modes. Field checking served as the main backup to the interpretations. Areas with high susceptibility to flooding were determined with a high level of confidence from the remotely sensed imagery.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Journal of Environmental Sciences; 19; May-June
    Format: text
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  • 3
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    The response of vegetation to geochemical conditions (1983)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: An understanding of the factors of vegetation response to changes in the geochemistry of the environment may give exploration geologists and other researchers an additional and effective tool for rock type discrimination. The factors of vegetation response can be grouped into three principal categories: structural or morphological factors, taxonomic factors which include indicator flora as well as vegetation assemblages, and spectral factors which represent the manner in which the vegetation interacts with electromagnetic radiation. The response of these factors over areas of anomalous mineralization is often unique and may be due to nutrient deficiencies and/or imbalances, toxicity and stress caused by anomalous mineral concentrations in the soil, low water retention, and plant competition. The successful use of geobotanical techniques results from the integration of the geobotanical observations with other techniques. The use of remote sensing in such a program must be predicated on those factors which can be discriminated within the constraints of the spatial, spectral, radiometric, and temporal resolutions of the sensing system and with appropriate analytical techniques.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Format: text
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  • 4
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    A First Look at Airborne Imaging Spectrometer (AIS) Data in an Area of Altered Volcanic Rocks and Carbonate Formations, Hot Creek Range, South Central Nevada (1985)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Three flight lines of Airborne Imaging Spectrometer (AIS) data were collected in 128 bands between 1.2 and 2.4 microns in the Hot Creek Range, Nevada on July 25, 1984. The flight lines are underlain by hydrothermally altered and unaltered Paleozoic carbonates and Tertiary rhyolitic to latitic volcanics in the Tybo mining district. The original project objectives were to discriminate carbonate rocks from other rock types, to distinguish limestone from dolomite, and to discriminate carbonate units from each other using AIS imagery. Because of high cloud cover over the prime carbonate flight line and because of the acquisition of another flight line in altered and unaltered volcanics, the study has been extended to the discrimination of alteration products. In an area of altered and unaltered rhyolites and latites in Red Rock Canyon, altered and unaltered rock could be discriminated from each other using spectral features in the 1.16 to 2.34 micron range. The altered spectral signatures resembled montmorillonite and kaolinite. Field samples were gathered and the presence of montmorillonite was confirmed by X-ray analysis.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: JPL Proc. of the Airborne Imaging Spectrometer Data Anal. Workshop; p 56-61
    Format: application/pdf
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  • 5
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    Geobotanical discrimination of ultramafic parent materials An evaluation of remote sensing techniques (1984)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: Color and color infrared aerial photography and imagery acquired from a Daedalus DEI-1260 multispectral airborne scanner were employed in an investigation to discriminate ultramafic rock types in a test site in southwest Oregon. An analysis of the relationships between vegetation characteristics and parent materials was performed using a vegetation classification and map developed for the project, lithologic information derived from published geologic maps of the region, and terrain information gathered in the field. Several analytical methods, including visual image analysis, band ratioing, principal components analysis, and contrast enhancement and subsequent color composite generation were used in the investigation. There was a close correspondence between vegetation types and major rock types. These were readily discriminated by the remote sensing techniques. It was found that ultramafic rock types were separable from non-ultramafic rock types and serpentine was distinguishable from non-serpentinized peridotite. Further investigations involving spectroradiometric and digital classification techniques are being performed to further identify rock types and to discriminate chromium and nickel-bearing rock types.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Format: text
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  • 6
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    A Comparison of AIS Data with Other Aircraft and Ground Data for the Geobotanical Discrimination of Rock Types in Southwest Oregon (1985)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The use of remote sensing techniques for the geobotanical discrimination of rock types is predicated upon a number of factors. These include an understanding of vegetation response to environmental (especially geochemical) conditions, the establishment of correlations between those vegetation factors and environmental factors, and the use of appropriate remote sensing techniques to discriminate the vegetation.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: JPL Proc. of the Airborne Imaging Spectrometer Data Anal. Workshop; p 146-151
    Format: application/pdf
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  • 7
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    Energy Remote Sensing Applications Projects at the NASA Ames Research Center (1982)
    In:  CASI
    Details
    Publication Date: 2014-09-09
    Description: The NASA Ames Research Center is active in energy projects primarily in the role of providing assistance to users in the solution of a number of problems related to energy. Data bases were produced which can be used, in combination with other sources of information, to solve spatially related energy problems. Six project activities at Ames are described which relate to energy and remote sensing. Two projects involve power demand forecasting and estimations using remote sensing and geographic information systems; two others involve transmission line routing and corridor analysis; one involves a synfuel user needs assessment through remote sensing; and the sixth involves the siting of energy facilities.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Marshall Univ. Proc. of the Natl. Conf. on Energy Resource Management, Vol. 2; p 543-551
    Format: text
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  • 8
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    Applied Remote Sensing Program (ARSP) to state and local government (1975)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Environmental surveys of arid land areas (Arizona) in the United States are presented. Maps of soils, vegetation, drainage patterns, and land use are shown. The distribution of uranium deposits, oil and gas pools, is also shown. Legislation pertaining to the preservation of natural resources is discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-143456 , OALS-BULL-10
    Format: application/pdf
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  • 9
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    Applied Remote Sensing Program (ARSP) (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The activities and accomplishments of the Applied Remote Sensing Program during FY 1975-1976 are reported. The principal objective of the Applied Remote Sensing Program continues to be designed projects having specific decision-making impacts as a principal goal. These projects are carried out in cooperation and collaboration with local, state and federal agencies whose responsibilities lie with planning, zoning and environmental monitoring and/or assessment in the application of remote sensing techniques. The end result of the projects is the use by the involved agencies of remote sensing techniques in problem solving.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-148324 , OALS-BULL-13
    Format: application/pdf
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  • 10
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    Relationships between vegetation and terrain variables in southeastern Arizona (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The author has identified the following significant results. Relationships were established between eight terrain variables and plant species and 31 vegetation types. Certain plant species are better than others for differentiating or discriminating groups of specified terrain variables. Certain terrain variables are better than others for differentiating or discriminating groups of vegetation types. Stepwise discriminant analysis was shown to be a useful tool in plant ecological studies.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E76-10299 , NASA-CR-146792
    Format: application/pdf
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