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Author: bettye johnson

Displaying records 91 to 100 of 166 records.
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91. The Kelvin and Temperature Measurements
Series: Journal of Research (NIST JRES)
Published: 1/1/2001
Authors: Billy Wilson Mangum, G T. Furukawa, Kenneth Gruber Kreider, Christopher W Meyer, Dean C Ripple, Gregory F Strouse, Weston Leo Tew, Robert D. Saunders, Bettye C Johnson, Howard W Yoon, Michael R Moldover, Charles E Gibson
Abstract: The International Temperature Scale of 1990 (ITS90) is defined from 0.65 K upwards to the highest temperature measurable by spectral radiation thermometry, the radiation thermometry being based on the Planck radiation law. Part I of this paper descr ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830671

92. Remote Sensing Support at NIST
Published: 10/25/2000
Author: Bettye C Johnson
Abstract: This presentation to the Committee on Earth Observation Satellites Working Group on Calibration and Validation 17th Plenary Meeting covers radiometry and remote sensing; remote sensing programs in the Optical Technology Division; specral radiance fro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841498

93. Assessment of the Accuracy of the MOBY Spectral Radiance Calibration Sources Using the SXR and the VXR
Published: 10/1/2000
Authors: Bettye C Johnson, Howard W Yoon, M Feinholz, D K Clark
Abstract: The Marine Optical Buoy (MOBY) and its related optical system the Marine Optical Sensor (MOS) consist of dual CCD-based spectrographs. MOBY, MOS, and other instruments operated by the MOBY team are used to provide in situ measurements of water-leavi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841511

94. Radiometric Calibration History of MOBY/NIST Single Channel Dual Mode Radiometers
Published: 10/1/2000
Authors: Bettye C Johnson, Steven W Brown, Howard W Yoon
Abstract: In 1996, the National Institute of Standards and Technology (NIST), with the support of the National Atmospheric and Oceanic Administration (NOAA), designed and built two single channel, dual mode radiometers. The radiometers are used to assess the a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841507

95. Radiometric Characterization and Calibration of the Marine Optical System (MOS) for the Marine Optical Buoy (MOBY) Project
Published: 10/1/2000
Authors: C Habauzit, Steven W Brown, Keith R Lykke, Bettye C Johnson, M Yarbrough, M Feinholz, D K Clark
Abstract: The scientific objective of the Marine Optical Buoy (MOBY) project is to measure the downwelling spectral irradiance, E^dd^, and the upwelling spectral radiance, L^du^, at various depths in the ocean. From these measurements, other quantities can be ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841510

96. 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

97. 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

98. 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

99. 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

100. 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



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