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Author: bettye johnson
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Displaying records 21 to 30 of 166 records.
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21. Bidirectional reflectance round-robin in support of the Earth Observing System program
Published: 1/1/2000
Authors: E A. Early, P Y. Barnes, Bettye C Johnson, James J. Butler, C J Bruegge, S F Biggar, P R Spyak, M M Pavlov
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104418

22. Calibration and Characterization of Trap Detector Filter Radiometers
Published: 11/1/2003
Authors: David W Allen, George P Eppeldauer, Steven W Brown, E A. Early, Bettye C Johnson, Keith R Lykke
Abstract: We describe the development of a mechanically simple, radiometrically stable transfer radiometer designed for both radiance and irradiance measurements. The filter radiometer consists of a six-element Si trap detector, a temperature stabilized filter ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841781

23. Calibration and Characterization of the Goddard Space Flight Center Sphere, ed. by S.B. Hooker and E.R. Firestone
Published: 1/1/1997
Authors: E A. Early, Bettye C Johnson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104425

24. Calibration in the Earth Observing System (EOS) Project, Part 1: Organization and Implementation
Published: 1/1/1996
Authors: James J. Butler, Bettye C Johnson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101388

25. Calibration in the Earth Observing System (EOS) Project, Part 2: Implementation
Published: 1/1/1996
Authors: James J. Butler, Bettye C Johnson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101386

26. Calibration of a Radiance Standard for the NPP/OMPS Instrument
Published: 10/9/2008
Authors: Bettye C Johnson, James J. Butler, Scott J. Janz, Robert D. Saunders, John W. Cooper, Matthew G. Kowalewski, R Barnes
Abstract: In June 2007, a spherical integrating source was calibrated in the National Aeronautics and Space Administration(NASA) Goddard Space Flight Center’s (GSFC) Calibration Facility as part of the prelaunch characterization program for the NPOESS Pre ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842573

27. Characterization and Calibration of a Trap Detector Filter Radiometer
Published: 1/1/2003
Authors: David W Allen, George P Eppeldauer, Steven W Brown, E A. Early, Bettye C Johnson, Keith R Lykke
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=100955

28. Characterization of Two Spectrmeters in Support of the Landsat Data Continuity Mission
Published: 8/27/2010
Authors: Bettye C Johnson, Robert D. Saunders, Zhigang Li, Abra Fein, Lawrence Ong, Milton Hom, Robert Barnes, B L Markham
Abstract: The Landsat Data Continuity Mission (LDCM) project at the National Aeronautics and Space Administration (NASA)Goddard Space Flight Center (GSFC) is supervising the manufacture and calibration of the Operational Land Imager (OLI) satellite instrument ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906346

29. Comparison of Area Measurements of Apertures for Exo-Atmospheric Solar Irradiance Between NIST and JPL
Published: Date unknown
Authors: Maritoni Abatayo Litorja, Bettye C Johnson, J B Fowler
Abstract: A comparison of the area measurements of the limiting apertures used for total solar irradiance measurements in the Active Cavity Radiometer Irradiance Monitor II (ACRIM II) and Active Cavity Radiometer Irradiance Monitor III (ACRIM III) were conduct ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841122

30. Comparison of Cryogenic Radiometry and Thermal Radiometry Calibrations at NIST Using Multichannel Filter Raidometers
Published: 2/1/2003
Authors: Bettye C Johnson, Steven W Brown, Keith R Lykke, Charles E Gibson, G Fargion, G Meister, S B. Hooker, B L Markham, James J. Butler
Abstract: Comparison of independent measurement results allows an assessment of the accuracy of the underlying methods. In this work, four multichannel filter radiometers were calibrated using tunable laser-illuminated and lamp-illuminated integrating sphere ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841690