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Displaying records 31 to 40 of 158 records.
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31. 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

32. Correction of Stray Light in Spectrographs: Implications for Remote Sensing
Published: 8/22/2005
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

33. Dedicated NOAA/JPSS VIIRS Ocean Color Calibration/Validation Cruise
Published: 6/12/2015
Authors: Bettye C Johnson, Michael Ondrusek, Eric Stengel, Veronica P. Lance, Menghua Wang, Kenneth Voss, Giuseppe Zibordi, Marko Talone, Zhongping Lee, Jianwei Wei, Junfang Lin, Chuanmin Hu, David English, Charles Kovach, Jennifer Cannizzaro, Alex Gilerson, Sam Ahmed, Ahmed El-Habashi, Robert Foster, Robert Arnone, Ryan Vandermeulen, Sherwin Ladner, Wesley Goode, Joaquim I Goes, Helga de Rosario Gomes, Alex Chekalyuk, Kali McKee, Scott Freeman, Aimee Neeley, Amir Ibrahim
Abstract: The NOAA/STAR Ocean Color team is focused on ,end-to-endŠ production of ocean color satellite products. In situ validation of satellite data is essential to producing the high-quality products required and expected by the international ocean color re ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=918908

34. 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

35. 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

36. 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

37. 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

38. Downwelling Surface Spectral Irradiance Measurements with the Marine Optical BuoY
Published: 12/31/2008
Authors: Bettye C Johnson, M Feinholz, S Flora, M Yarbrough, Terrance Houlihan, D Peters, Dennis Clark
Abstract: The Marine Optical BuoY (MOBY), off the coast of Lanai, Hawaii, has made in situ, in-water up-welling spectral radiance and downwelling surface spectral irradiance measurements since July 1997. The MOBY observatory concept was developed and implemen ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=842591

39. EOS AM-1 Preflight Radiometric Measurement Comparison Using the Advanced Spaceborne Thermal Emission and Reflection Radiometer Visible/Near Infrared Integrating Sphere
Published: 1/1/1996
Author: Bettye C Johnson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103902

40. EOS Radiometric Measurement Comparisons at Hughes Santa Barbara Remote Sensing and NASA's Jet Propulsion Laboratory
Published: 1/1/1996
Authors: James J. Butler, Bettye C Johnson
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101385



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