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Author: bettye johnson
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Displaying records 31 to 40 of 166 records.
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31. Comparison of Cryogenic Radiometry and Thermal Radiometry Calibrations at NIST using Multi-channel Filter Radiometers
Published: 1/1/2003
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
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104553

32. Comparison of Filter Radiometer Spectral Responsivity with the NIST Spectral Irradiance and Illuminance Scales
Published: 1/1/1995
Authors: Benjamin K Tsai, Bettye C Johnson, Robert D. Saunders, C L Cromer
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104233

33. Comparison of Laser-Based and Conventional Calibrations of Sun Photometers
Published: 11/1/2003
Authors: N Souaidia, C Pietras, G Fargion, R Barnes, R Frouin, Keith R Lykke, Bettye C Johnson, Steven W Brown
Abstract: Sun photometers are used to characterize the radiative properties of the atmosphere. They measure both the incident solar irradiance as well as the sky radiance (from scattered incident flux). Global networks of sun photometers provide data product ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841754

34. Correction of Stray Light in Spectrographs: Implications for Remote Sensing
Published: 1/1/2005
Authors: Yuqin Zong, Steven W Brown, Bettye C Johnson, Keith R Lykke, Yoshihiro Ohno
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104754

35. Correction of Stray Light in Spectrographs: Implications for Remote Sensing
Published: Date unknown
Authors: Yuqin Zong, Steven W Brown, Bettye C Johnson, Keith R Lykke, Yoshihiro Ohno
Abstract: Spectrographs are used in a variety of applications in the field of remote sensing for radiometric measurements due to the benefits of measurement speed, sensitivity, and portability. However, spectrographs are single grating instruments that are su ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840972

36. Correction of stray light in spectrographs: implications for remote sensing
Published: 1/1/2005
Authors: Steven W Brown, Bettye C Johnson, Keith R Lykke, Yoshihiro Ohno, Yuqin Zong
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101310

37. Description of a portable spectroradiometer to validate EOS radiance scales in the shortwave infrared
Published: 1/1/1998
Authors: W W Brown, Bettye C Johnson, W Yoon h
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101361

38. Development of a Portable Integrating Sphere Source for the Earth Observing System's Calibration Validation Program
Published: 1/1/2003
Authors: Steven W Brown, Bettye C Johnson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101313

39. Development of a Portable Integrating Sphere Source for the Earth Observing System's Calibration Validation Programme
Published: 1/1/2003
Authors: Steven W Brown, Bettye C Johnson
Abstract: We have designed and built a portable integrating sphere source to be used at NASA satellite sensor calibration facilities in support of the EOS calibration validation program. The source is designed to complement existing detector-based radiance v ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841436

40. Direct Intercomparison of Copper and Gold Freezing Point Blackbody Primary Standards from NRLM and NIST
Published: 1/1/1996
Authors: Thomas R. O'Brian, Bettye C Johnson, F Sakuma
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104062