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  • 1
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    Applications of active microwave imagery (1978)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The following topics were discussed in reference to active microwave applications: (1) Use of imaging radar to improve the data collection/analysis process; (2) Data collection tasks for radar that other systems will not perform; (3) Data reduction concepts; and (4) System and vehicle parameters: aircraft and spacecraft.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Active Microwave Users Workshop Rept.; p 15-48
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Calibration of the visible and near-infrared channels of the NOAA-9 AVHRR using high-altitude aircraft measurements from August 1985 and October 1986 (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Visible and near infrared wavelength sensors mounted on operational satellites now in use do not have onboard absolute calibration devices. One means of establishing an in-orbit calibration for a satellite sensor is to make simultaneous measurement of a bright, relatively uniform scene along the satellite view vector from a calibrated instrument on board a high altitude aircraft. Herein, aircraft data were recorded over White Sands, New Mexico at satellite overpass time. Comparison of the coincident aircraft and orbiting satellite data for the visible and near infrared wavelength channels of the NOAA-9 Advanced Very High Resolution Radiometer shows that the calibration of the visible channel was unchanged from prelaunch values, but that the near infrared channel has degraded 6 percent by Aug. 1985. By Oct. 1986 the visible channel had degraded 13 percent and the near infrared channel had degraded 19 percent.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-101063 , A-89026 , NAS 1.15:101063
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Visible and near-infrared channel calibration of the GOES-6 VISSR using high-altitude aircraft measurements (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Present and future visible and near-infrared wavelength sensors mounted on operational satellites do not have on-board absolute calibration devices. One means of establishing an in-orbit calibration for a satellite sensor is to make simultaneous measurements of a bright, relatively uniform scene along the satellite view vector from a calibrated instrument on board a high altitude aircraft. Aircraft data were recorded over White Sands, New Mexico, and the coincident aircraft and orbiting satellite data is compared for the visible and near-infrared wavelength channel of the GOES-6 Visible Infrared Spin-Scan Radiometer.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-101064 , A-89027 , NAS 1.15:101064
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Soil Moisture Project Evaluation Workshop (1980)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Approaches planned or being developed for measuring and modeling soil moisture parameters are discussed. Topics cover analysis of spatial variability of soil moisture as a function of terrain; the value of soil moisture information in developing stream flow data; energy/scene interactions; applications of satellite data; verifying soil water budget models; soil water profile/soil temperature profile models; soil moisture sensitivity analysis; combinations of the thermal model and microwave; determing planetary roughness and field roughness; how crust or a soil layer effects microwave return; truck radar; and truck/aircraft radar comparison.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10322 , NASA-CR-170364 , SM-R0-04016 , NAS 1.26:170364 , Jun 16, 1980 - Jun 17, 1980; Beltsville, MD; United States
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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