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Search Publications by: B. Carol Johnson (Fed)

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Displaying 201 - 225 of 358

Stray Light Characterization for MOBY

February 1, 2002
Author(s)
Bettye C. Johnson, Steven W. Brown, Keith R. Lykke, M Feinholz, M Yarbrough, S Flora, D K. Clark
The Marine Optical Spectrograpli (MOS) system is used as a down-welling irradiance and up-welling in-water radiance profiler in two configurations: as the sensor for the Marine Optical Buoy (MOBY) and as a mobile, sliipboard-deployable sensor. Both systems

Overview of the Radiometric Calibration of MOBY

January 1, 2002
Author(s)
D K. Clark, M Feinholz, M Yarbrough, B. Carol Johnson, Steven W. Brown, Y S. Kim, R Barnes
The Marine Optical Buoy (MOBY) provides values of water-leaving radiance for the calibration and validation of satellite ocean color instruments. Located in clear, deep ocean waters near the Hawaiian Island of Lanai, MOBY measures the upwelling radiance

Radiometric Calibration of the Scripps Earth Polychromatic Imaging Camera

January 1, 2002
Author(s)
E A. Early, B C. Bush, Steven W. Brown, David W. Allen, Bettye C. Johnson
As part of the Triana mission, the Scripps Earth Polychromatic Imaging Camera (Scripps-EPIC) will view the full sunlit side of Earth from the Lagrange-1 point. The National Institute of Standards and Technology and the Scripps Institution of Oceanography

Radiometric Characterization of Field Radiometers in Support of the 1997 Lunar Lake, Nevada, Experiment to Determine Surface Reflectance and Top-of-Atmosphere Radiance

September 1, 2001
Author(s)
Steven W. Brown, Bettye C. Johnson, Howard W. Yoon, James J. Butler, R Barnes, S F. Biggar, P R. Spyak, Kurtis J. Thome, E F. Zalewski, M Helmlinger, C J. Bruegge, S Schiller, G Fedosejevs, R Gauthier, S Tsuchida, S Machida
A continuing series of field campaigns to Lunar Lake, Nevada, has been established for the development of ground-truth measurement protocols and assessment of measurement uncertainties for the ground-based calibration of on-orbit satellite sensors. In June

Noncontact Thermometry in the Optical Technology Division at NIST

March 1, 2001
Author(s)
Charles E. Gibson, Howard W. Yoon, Benjamin K. Tsai, Bettye C. Johnson, Robert D. Saunders
The Optical Technology Division (OTD) at the National Institute of Standards and Technology (NIST) maintains the thermodynamic temperature scale above the silver freezing point using spectral radiance ratios according to the International Temperature Scale

Radiometry: Sensing the World

February 1, 2001
Author(s)
Steven W. Brown, Bettye C. Johnson, Keith R. Lykke
Light is the supreme messenger. Light tells us something about the cosmos, the make-up of our bodies, and nearly everything in between. Light carries structural information, chemical information, and information on position and speed, as well as