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  • 1980-1984  (9)
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  • 1
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    Study of Thematic Mapper and Multispectral Scanner Data Applications (1984)
    In:  CASI
    Details
    Publication Date: 2014-09-13
    Description: The U.S. Geological Survey EROS Data Center evaluated the utility of LANDSAT multispectral scanner (MSS) and Thematic Mapper (TM) data for natural resource assessment and land cover information, emphasizing manual interpretation and digital classification of the data for U.S. Department of the Interior applications. In most cases, substantially more information was derived from TM data than from MSS data. The test areas included Washington, D.C. and prairie regions of South Dakota and Kansas.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA. Goddard Space Flight Center LANDSAT-4 Sci. Invest. Summ., Including Dec. 1983 Workshop Results, Vol. 2; p 129-132
    Format: text
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  • 2
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    LANDSAT 4 investigations of Thematic Mapper and multispectral scanner applications (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The optimum index factor package was used to choose TM band for color compositing. Processing techniques were also used on TM data over several sites to: (1) reduce the amount of data that needs to be processed and analyzed by using statistical methods or by combining full-resolution products with spatially compressed products; (2) digitally process small subareas to improve the visual appearance of large-scale products or to merge different-resolution image data; and (3) evaluate and compare the information content of the different three-band combinations that can be made using the TM data. Results indicate that for some applications the added spectral information over MSS is even more important than the TM's increased spatial resolution.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E84-10100 , NASA-CR-173369 , NAS 1.26:173369
    Format: application/pdf
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  • 3
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    LANDSAT 4 investigation of thematic mapper and multispectral scanner applications (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Six different band combinations of TM data were selected for evaluation by four experienced photointerpreters who were asked to rank the band combinations according to the ease with which the category of image feature designated for each set of combinations could be distinguished. There were four sets of combinations selected for each category of image feature. Scenes of Oklahoma City, Oklahoma and of the Sacramento Valley, California area were enlarged to 1:250,000 and 2 cm circular chips were cut from each print. A nonparametric rank order test was carried out on the data to determine if the interpreters found no difference among the band combinations in ranking for the designated categories. Kendall's coefficient of concordance (W) was calculated and the significance of the W value was determined by a chi-square test. A table summarizes the results of the evaluation and shows the rank order of band combinations indicated as valid by rejection of the null hypothesis.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E84-10075 , NASA-CR-173225 , NAS 1.26:173225
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  • 4
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    LANDSAT 4 investigations of thematic mapper and multispectral scanner applications (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Progress in the investigation of the quality and performance of LANDSAT 4 TM data is reported. Average mean brightness values were computed for each band and a look-up table was designed to place the values at about 1.0 density on the straight line portion of the film's H and D curve. Manual interpretation of bands 5 and 7 indicated these data to be good sources for determining locations of dugouts and small ponds as water sources.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E84-10006 , NASA-CR-174521 , NAS 1.26:174521
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  • 5
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    LANDSAT 4 investigations of thematic mapper and multispectral scanner applications (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The utility of TM data natural resource assessment was evaluated with emphasis on manual interpretation and digital classification. The improved spatial resolution of TM data, as compared with MSS data, aided in the location of roads, small stock ponds, and many other land features, permitting positive identification of landmarks. With the TM, there was more efficient manual interpretation of land use, better identification of resource types, and improved assessment of the ecological status of natural vegetation. Band 5 and band 7 aided in defining water resources, wetland vegetation resources, and other terrain features. Results from TM and TM simulator data suggest that the coefficient of variation for major land cover types is less for TM data than for equivalent MSS data. Although the amount of information in bands 5 and 7 is small, it is unique since the same information cannot be derived from the MSS four-band spectral region.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E84-10017 , NASA-CR-174544 , NAS 1.26:174544
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  • 6
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    LANDSAT 4 investigations of Thematic Mapper and Multispectral Scanner applications (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Interband detector noise was suppressed in the TIPS TM North Dakota data by median filtering. Procedures were developed to optimize the visual information content of thematic mapper data and evaluate the resulting photographic products by visual interpretation. A digital to analog TM transfer function was developed which properly placed the digital values on the most useable portion of film response curve. Utilizing the calculated minimum, mean, and maximum and the respective standard deviations of the bands from 50 sample scenes of TM data, look up tables were designed which resulted in acceptable photographic products. These products were evaluated by generation of color composites of selected band combinations using standard photo production procedures, and visual interpretation of scene features.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E84-10152 , NASA-CR-173223 , NAS 1.26:173223
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  • 7
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    LANDSAT 4 investigations of thematic mapper and multispectral scanner applications (1983)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Digital data analyses suggest the potential for TM data to provide improved land cover information with the mid-IR band being especially useful. Coefficients of variations for major land categories were greater for MSS data channels than for TM channels. Interpretation of black and white images of the six reflective TM bands indicates a strong interpreter preference for bands 5 and 7 for making distinctions in most of the classification categories that were addressed; however, a strong case can be made for a color composite containing visible, near-IR, and mid-IR spectral regions when distinguishing vegetation. A transformation from each red, green, blue color space into hue, intensity, and saturation space has potential for enhanced interpretability of TM color composite images. A perspective view transformation was demonstrated that could be useful for presently registered layers of spatial data in an oblique view format.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10301 , NASA-CR-170373 , NAS 1.26:170373
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  • 8
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    LANDSAT 4 investigation of Thematic Mapper and Multispectral Scanner applications (1984)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A comparison of methods for selecting optimum TM band combinations for visual interpretation of data are examined. Two statistical methods and visual interpretation by experienced photointerpreters are compared using photographic chips of 1:250,000 scale prints and the digital equivalent of the chips. A mosaic of TM data of the Great Salt Lake area of Utah was done. The filtering process was reviewed since the results were not satisfactory.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E85-10076 , NASA-CR-174403 , NAS 1.26:174403 , PCN902-91548
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  • 9
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    LANDSAT 4 investigations of thematic mapper and multispectral scanner applications (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Initial data screening, data handling and program testing were completed on the four-band Detroit scene and the seven-band northeast Arkansas scene. Data were received in early December for one primary eastern test site (Washington, D.C.) and one secondary eastern test site (Allegheny National Forest). A comprehensive digital data base was built for a portion of the Black Hills test site and is composed of historic LANDSAT MSS data; elevation, slope, and aspect data; land cover data; geologic data; thematic mapper simulator data; and digitized high altitude aircraft data. The thematic mapper and multispectral scanner data of the Washington area were resampled at 25 and 50 meters respectively, with map projection to UTM grid.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10121 , NASA-CR-169724 , NAS 1.26:169724
    Format: application/pdf
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