U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications by: B. Carol Johnson (Fed)

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 251 - 275 of 358

Second Intercomparision of Radiation Temperature Scales Among Four National Metrological Laboratories Using a Transfer Standard Radiation Thermometer

January 1, 2000
Author(s)
F Sakuma, H Sakate, Graham Machin, J Fischer, Charles E. Gibson, B. Carol Johnson
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 (Institute

The Fifth SeaWiFS Intercalibration Round-Robin Experiment (SIRREX-S), July 1996

October 1, 1999
Author(s)
Bettye C. Johnson, Howard W. Yoon, Sally S. Bruce, Ping-Shine Shaw, E A. Thompson, S B. Hooker, R Barnes, R Eplee, S Maritorena, J Mueller
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 for

Radiometric Measurement Comparisons Using Transfer Radiometers in Support of the Calibration of NASA's Earth Observing System (EOS) Sensors

September 1, 1999
Author(s)
James J. Butler, B. Carol Johnson, Steven W. Brown, Howard Yoon, R Barnes, B L. Markham, S F. Biggar, E F. Zalewski, P R. Spyak, J W. Cooper, F Sakuma
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

Vacuum Processing Technique for Development of Primary Standard Blackbodies

June 1, 1999
Author(s)
Magdalena Navarro, Sally Bruce, B. Carol Johnson, A V. Murthy, Robert D. Saunders
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 radio

Volume 4, The 1997 Prelaunch Radiometric Calibration of Sea WiFS

April 1, 1999
Author(s)
Bettye C. Johnson, Howard W. Yoon, Sally S. Bruce, Ping-Shine Shaw, E A. Thompson, S B. Hooker, R Eplee, R Barnes, S Maritorena, J Mueller
The Sea-viewing Side Field-of-view Sensor (SeaWiFS) was originally calibrated by the instrument's manufacturer, Santa Barbara Research Center (SBRC), in November 1993. In preparation for an August 1997 launch, the Sea WiFS Project and the National