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You searched on: Author: bettye johnson

Displaying records 21 to 30 of 154 records.
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21. Simple Spectral Stray Light Correction Method for Array Spectroradiometers
Published: 2/20/2006
Authors: Yuqin Zong, Steven W Brown, Bettye C Johnson, Keith R Lykke, Yoshihiro Ohno
Abstract: In many applications, the measurement accuracy of spectroradiometers, particularly instruments with a single dispersive element, is limited by the presence of stray radiation within the instrument. A simple, practical method has been developed to co ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840968

22. Bandwith and spectral stray light effects in the NASA GSFC Radiometric Calibration Facility primary transfer radiometer
Published: 1/1/2006
Authors: R A Barnes, Steven W Brown, James J. Butler, Jill Cooper, Bettye C Johnson, J E Marketon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104314

23. 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

24. Radiometric validation of NASA's Ames Research Center's Sensor Calibration Laboratory
Published: 1/1/2005
Authors: R A Barnes, S F Biggar, Steven W Brown, James J. Butler, J Cooper, P Grant, P Hajek, E Hildum, Bettye C Johnson, E F Zalewski
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101070

25. Summary of NIST Short Courses offered by the Optical Technology Division
Published: 1/1/2005
Authors: Carl C Miller, Howard W Yoon, Bettye C Johnson, Yoshihiro Ohno
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104636

26. Metrology for Remote Sensing Radiometry, ed. by S. Morain Page: A. Budge
Published: 1/1/2004
Authors: Bettye C Johnson, Steven W Brown, Joseph Paul Rice
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104550

27. A Comparison of Laser-Based and Conventional Calibrations of Sun Photometers
Published: 11/10/2003
Authors: N Souaidia, C Pietras, G Fargion, R A Barnes, R Frouin, Keith R Lykke, Bettye C Johnson, Steven W Brown
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104764

28. Advances in Radiometry for Ocean Color
Published: 11/10/2003
Authors: Steven W Brown, D K Clark, Bettye C Johnson, Howard W Yoon, Keith R Lykke, S Flora, M Feinholz, N Souaidia, C Pietras, Thomas C Stone, M Yarbrough, Y S Kim, R Barnes, J Mueller
Abstract: Organic materials in the oceans have spectral signatures based on their light-scattering properties. These optical properties are related to bio-physical and bio-chemical data products, such as the concentration of phytoplankton chlorophyll-{alpha} ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=840030

29. 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

30. 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



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