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Katagiri, S, Kikuchi, N, Nakajima, TY, Higurashi, A, Shimizu, A, Matsui, I, Hayasaka, T, Sugimoto, N, Takamura, T, Nakajima, T (2010). Cirrus Cloud Radiative Forcing Derived from Synergetic Use of MODIS Analyses and Ground-Based Observations. SOLA, 6, 25-28.

We have been performing radiative budget measurements at a ground-based observatory located on Fukue Island. In this study, we analyzed the data from instruments installed in the observatory and the data observed by MODIS, the satellite-borne imager, to evaluate cirrus cloud radiative forcing (CRF). The result shows that CRF took a large positive value as 127.98 W m(-2) at the top of the atmosphere (TOA) and a small positive value as 13.2 W m(-2) at the surface. As a result, it was found that optically very thin cirrus clouds exert a strong warming effect on the Earth's system and a weak warming effect on the Earth's surface when aerosols are not taken into account.



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