Effects of aerosols on cloud field with satellite-derived data and GCM simulation

K. Suzuki, T. Nakajima, A. Numaguti, T. Takemura, K. Kawamoto, A. Higurashi

研究成果: Contribution to journalConference article査読


Numerical experiment was performed using an general circulation model (GCM) including aerosol indirect effect into water cloud and the simulated global distribution of cloud droplet radii was compared with the global distribution of cloud effective radii retrieved from Advanced Very High Resolution Radiometer (AVHRR). Comparisons of GCM calculation with AVHRR retrieval showed that our GCM generally can simulate the global characteristics of cloud droplet radii such as a land-sea contrast associated with difference of aerosol abundance and costal region feature due to aerosol injection from adjacent continental area. AVHRR retrieval and GCM simulation, however, are turned out to show disagreement over tropical region. AVHRR retrieval may tend to overestimate droplet radii due to the contamination of signal by drizzles and ice particles, whereas our GCM does not treat aerosol indirect effect in deep convective clouds predominant over tropics. Over equatorial central Pacific, where satellite retrieval may suffer from statistical biases, satellite retrieval and GCM simulation are also found to be different.

ジャーナルProceedings of SPIE - The International Society for Optical Engineering
出版ステータス出版済み - 1 1 2001
イベントOptical Remote Sensing of the Atmosphere and Clouds II - Sendai, 日本
継続期間: 10 9 200010 12 2000

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学


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