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http://dx.doi.org/10.5467/JKESS.2007.28.3.298

Intercomparison of Shortwave Radiative Transfer Models for a Rayleigh Atmosphere  

Yoo, Jung-Moon (Department of Science Education, Ewha Womans University)
Jeong, Myeong-Jae (NASA/GSFC)
Lee, Kyu-Tae (Department of Atmospheric & Environmental Sciences, Kangnung National University)
Kim, Jhoon (Department of Earth System Sciences, Yonsei University)
Ho, Chang-Hoi (School of Earth & Environmental Sciences, Seoul National University)
Ahn, Myoung-Hwan (Remote Sensing Research Laboratory, METRI/KMA)
Hur, Young-Min (Department of Science Education, Ewha Womans University)
Rhee, Ju-Eun (Department of Science Education, Ewha Womans University)
Yoo, Hye-Lim (Department of Science Education, Ewha Womans University)
Chung, Chu-Yong (Remote Sensing Research Laboratory, METRI/KMA)
Shin, In-Chul (Remote Sensing Research Laboratory, METRI/KMA)
Choi, Yong-Sang (School of Earth & Environmental Sciences, Seoul National University)
Kim, Young Mi (School of Earth & Environmental Sciences, Seoul National University)
Publication Information
Journal of the Korean earth science society / v.28, no.3, 2007 , pp. 298-310 More about this Journal
Abstract
Intercomparison between eight radiative transfer codes used for the studies of COMS (Communications, Ocean, and Meteorological Satellite) in Korea was performed under pure molecular, i.e., Rayleigh atmospheres in four shortwave fluxes: 1) direct solar irradiance at the surface, 2) diffuse irradiance at the surface, 3) diffuse upward flux at the surface, and 4) diffuse upward flux at the top of the atmosphere. The result (hereafter called the H15) from Halthore et al.'s study (2005) which intercompared and averaged 15 codes was used as a benchmark to examine the COMS models. Uncertainty of the seven COMS models except STREAMER was ${\pm}4%$ with respect to the H15, comparable with ${\pm}3%$ of Halthore et al.'s (2005). The uncertainty increased under a large $SZA=75^{\circ}$. The SBDART model generally agreed with the H15 better than the 6S model, but both models in the shortwave infrared region were equally good. The direct solar irradiance fluxes at the surface, computed by the SBDARTs of four different users, were different showing a relative error of 1.4% $(12.1Wm^{-2})$. This reason was partially due to differently installing the wavelength resolution in the flux integration. This study may be useful for selecting the optimum model in the shortwave region.
Keywords
intercomparison; radiative transfer model; Rayleigh atmosphere; SBDART; 6S;
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Times Cited By KSCI : 1  (Citation Analysis)
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