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You searched on: Author: bettye johnson

Displaying records 91 to 100 of 158 records.
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91. Radiometric Calibration History of Visible and Near-Infrared Portable Radiometers
Published: 9/1/2000
Authors: Bettye C Johnson, Steven W Brown, Howard W Yoon
Abstract: The National Institute of Standards and Technology (NIST), with the support of the National Aeronautics and Space Administration (NASA), has built several transfer radiometers that are used in radiometric measurement comparisons to validate spectral- ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841411

92. Bidirectional Reflectance Round-Robin in Support of the Earth Observing System Program
Published: 8/1/2000
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
Abstract: Laboratory measurements of the bidirectional reflectance distribution function (BRDF) of diffuse reflectors are required to supportcalibration in the Earth Observing System (EOS) program of the National Aeronautics and Space Administration. To asses ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841342

93. A Comparison of ITS-90, Above the Silver Point, as Realised by NIST and NPL
Published: 1/1/2000
Authors: Graham Machin, Charles E Gibson, Bettye C Johnson, Howard W Yoon
Abstract: A comparison of the radiance temperature scales between 1000 C and 2700 C has been performed between the National Physical Laboratory (NPL) and the National Institute of Standards and Technology (NIST). Two transfer radiation thermometers, of identi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841356

94. 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

95. Radiometric Calibration History of Visible and Near Infrared Portable Radiometers
Published: 1/1/2000
Authors: Bettye C Johnson, Steven W Brown, Howard W Yoon
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=103898

96. Second Intercomparision of Radiation Temperature Scales Among Four National Metrological Laboratories Using a Transfer Standard Radiation Thermometer
Published: 1/1/2000
Authors: F Sakuma, H Sakate, Graham Machin, J Fischer, Charles E Gibson, Bettye C Johnson
Abstract: Round-robin measurements with a transfer-standard radiation thermometer were organized by the National Research Laboratory of Metrology NRLM with the National Institute of Standards and Technology (NIST), National Physical Laboratory (NPL), IMGC (In ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841352

97. The Fifth SeaWiFS Intercalibration Round-Robin Experiment (SIRREX-S), July 1996
Published: 10/1/1999
Authors: Bettye C Johnson, Howard W Yoon, Sally Skidmore Bruce, Ping-Shine Shaw, E A Thompson, S B. Hooker, R Barnes, R Eplee, S Maritorena, J Mueller
Abstract: This report documents the fifth Sea-viewing Wide Field-of-view Sensor (SeaWiFS) Intercalibration Round-Robin experiment (SIRREX-5), which was held at the National Institute of Standards and Technology (NIST) on 23 July to 30 July 1996. The agenda fo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841397

98. Radiometric Measurement Comparisons Using Transfer Radiometers in Support of the Calibration of NASA's Earth Observing System (EOS) Sensors
Published: 9/1/1999
Authors: James J. Butler, Bettye C Johnson, Steven W Brown, Howard W Yoon, R Barnes, B L Markham, S F Biggar, E F Zalewski, P R Spyak, J W Cooper, F Sakuma
Abstract: EOS satellite instruments operating in the visible through the shortwave infrared wavelength regions (from 0.4 um to 2.5 um) are calibrated prior to flight for radiance using integrating spheres at a number of instrument builder facilities. The trac ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841386

99. The Fifth SeaWiFS Intercalibration Round-Robin Experiment (SIRREX-5), ed. by S.B. Hooker and E.R. Firestone
Published: 7/1/1999
Authors: Bettye C Johnson, Howard W Yoon, S S Bruce, Ping-Shine Shaw, Alan K Thompson, S B. Hooker, R A Barnes, E Eplee r, S Maritorena, J L Mueller
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104556

100. Vacuum Processing Technique for Development of Primary Standard Blackbodies
Series: Journal of Research (NIST JRES)
Published: 6/1/1999
Authors: Magdalena Navarro, Sally Skidmore Bruce, Bettye C Johnson, A V Murthy, Robert D. Saunders
Abstract: Blackbody sources with nearly unity emittance that are in equilibrium with a pure freezing metal such as gold, silver, or copper are used as primary standard sources in the International Temperature Scale of 1990 (ITS-90). Recently, a facility using ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841339



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