Skip all navigation and jump to content Jump to site navigation
NASA Logo - Goddard Space Flight Center

+ NASA Homepage

    
Goddard Space Flight Center
About MODIS News Data Tools /images2 Science Team Science Team Science Team

   + Home
ABOUT MODIS
MODIS Publications Link
MODIS Presentations Link
MODIS Biographies Link
MODIS Science Team Meetings Link
 

 

 

Wonsick, MM, Pinker, RT, Meng, W, Nguyen, L (2006). Evaluation of surface shortwave flux estimates from GOES: Sensitivity to sensor calibration. JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY, 23(7), 927-935.

Abstract
Parameters derived from satellite observations depend on the quality of the calibration method applied to the raw satellite radiance measurements. This study investigates the sensitivity of absolute reflectance, derived cloud cover, and estimated surface shortwave (SW) downward fluxes to two different calibration methods for the visible sensor aboard the eighth Geostationary Operational Environmental Satellite (GOES-8). The first method was developed at NOAA's National Environmental Satellite, Data, and Information Service (NESDIS), and the second at the NASA Langley Research Center. Differences in visible reflectance ranged from -0.5% to 3%. The average difference in monthly mean cloud amount was similar to 3%, and the average difference in monthly mean shortwave downward flux was 5 W m(-2). Differences in bias and rms of the SW fluxes when evaluated against ground station measurements were less than 3 W m(-2). Neither calibration method was shown to consistently outperform the other. This evaluation yields an estimate of the errors in fluxes that can be attributed to calibration.

DOI:

ISSN:
0739-0572

FirstGov logo Privacy Policy and Important Notices NASA logo

Curator: Brandon Maccherone
NASA Official: Shannell Frazier

NASA Home Page Goddard Space Flight Center Home Page