Research Papers

Metrological support for climatic time series of satellite radiometric data

[+] Author Affiliations
Victor I. Sapritsky, Andrey A. Burdakin, Boris B. Khlevnoy, Svetlana P. Morozova, Sergey A. Ogarev, Alexander S. Panfilov

Laboratory of Radiometry and Radiation Thermometry, All-Russian Institute for Opto-Physical Measurements (VNIIOFI), 46 Ozernaya Str., Moscow, Russian Federation 119361 Russia

Vladimir N. Krutikov

Federal Agency on Technical Regulating and Metrology, 9 Leninsky Prospect, B-49, GSP-1, Moscow, 119991 Russia

Gail E. Bingham, Thomas Humpherys, Joseph J. Tansock, Alan V. Thurgood

Utah State University Research Foundation, Space Dynamics Laboratory, 1695 North Research Park Way, North Logan, UT 84341

Victor E. Privalsky

Vega International, Inc., 1272 Eastridge Drive, Logan, UT 84321

J. Appl. Remote Sens. 3(1), 033506 (February 2, 2009). doi:10.1117/1.3086288
History: Received November 30, 2007; Revised November 16, 2008; Accepted December 16, 2008; February 2, 2009; Online February 02, 2009
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A necessary condition for accumulating fundamental climate data records is the use of observation instruments whose stability and accuracy are sufficiently high for climate monitoring purposes; the number of instruments and their distribution in space should be sufficient for measurements with no spatial or temporal gaps. The continuous acquirement of data over time intervals of several decades can only be possible under the condition of simultaneous application of instruments produced by different manufacturers and installed on different platforms belonging to one or several countries. The design of standard sources for pre-flight calibrations and in-flight monitoring of instruments has to meet the most stringent requirements for the accuracy of absolute radiometric measurements and stability of all instruments. This means that the radiometric scales should be stable, accurate, and uniform. Current technologies cannot ensure the high requirements for stability and compatibility of radiometric scales: 0.1% per decade within the 0.3 - 3 μm band and 0.01 K per decade within the 3 - 25 μm band. It is suggested that these tasks can be aided through the use of the pure metals or eutectic alloy phase transition phenomenon that always occur under the same temperature. Such devices can be used for pre-flight calibrations and for on-board monitoring of the stability of radiometric instruments. Results of previous studies of blackbody models based upon the phase transition phenomenon are quite promising. A study of the phase transition of some materials in small cells was conducted for future application in onboard monitoring devices and its results are positive and allow us to begin preparations for similar experiments in space.

© 2009 Society of Photo-Optical Instrumentation Engineers


Victor I. Sapritsky ; Andrey A. Burdakin ; Boris B. Khlevnoy ; Svetlana P. Morozova ; Sergey A. Ogarev, et al.
"Metrological support for climatic time series of satellite radiometric data", J. Appl. Remote Sens. 3(1), 033506 (February 2, 2009). ;



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