Development of a satellite OSSE system for atmospheric constituent observations

2014 Fiscal Year Final Research Report

• Project/Area Number: 24656075
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Engineering fundamentals
• Research Institution: Japan, Meteorological Research Institute
• Principal Investigator: SEKIYAMA Tsuyoshi 気象庁気象研究所, 環境・応用気象研究部, 主任研究官 (90354498)
• Co-Investigator(Kenkyū-buntansha): TANAKA Yasumichi 気象庁気象研究所, 環境・応用気象研究部, 併任職員 (50435591)
• Research Collaborator: OGI Akinori 気象庁, 地球環境・海洋部, 係員 ; YUMIMOTO Keiya 気象庁気象研究所, 環境・応用気象研究部, 主任研究官
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 事前評価システム / エアロゾル / 衛星観測 / データ同化 / 観測システムシミュレーション実験 / OSSE

Outline of Final Research Achievements

A satellite-bourne aerosol observation system was assessed by observing system simulation experiments (OSSEs), in which the liar instrument of CALIPSO/NASA satellite was emulated by a global aerosol simulation model. Its performance over a three-month period was validated using aerosol optical thickness (AOT) distributions in East Asia. The analysis derived from the emulated CALIPSO data demonstrated the ability to produce better analyses of sulfate and dust aerosols in comparison to the analysis without CALIPSO data. This result presents great possibilities for the beneficial use of the satellite liar data. The OSSE results strongly suggest that the use of real CALIPSO data will have a beneficial effect on obtaining more accurate sulfate and dust aerosol analyses. The use of the same OSSE technique will allow us to perform a prior assessment of the next-generation lidar satellite EarthCARE, which will be launched in 2016.

Free Research Field

大気化学