Study on the leading role of the Asian monsoon circulation in the stratosphere-troposphere chemistry coupling

2014 Fiscal Year Final Research Report

• Project/Area Number: 24740325
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Meteorology/Physical oceanography/Hydrology
• Research Institution: Japan, Meteorological Research Institute
• Principal Investigator: DEUSHI Makoto 気象庁気象研究所, 環境・応用気象研究部, 主任研究官 (00354499)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 物質輸送 / アジアモンスーン循環 / 成層圏－対流圏交換 / 化学輸送モデル

Outline of Final Research Achievements

Influences of the Asian monsoon circulation on transport processes of trace gases over India and their year-to-year variabilities are investigated, using a global chemical transport model and aircraft and sonde observations.
Using the diagnosis of mass weighted isentropic zonal means, budget analysis of carbon monoxide in the atmosphere are performed to clarify mean transport, mixing, and vertical convective transport. We found that convergence of carbon monoxide due to mean transport are dominant in the anticyclonic circulation formed over the northern sub-tropics in the upper troposphere and the lower stratosphere during the boreal summer,

Free Research Field

大気化学