An Aerosol Dipole Event over the Tropical Indian Ocean during 2006
Introduction On a global scale, the natural sources of aerosols are more important than the anthropogenic aerosols but regionally, anthropogenic aerosols are more important. Aerosol plumes, the byproducts of biomass burning, have long been observed over large regions of the tropics with aircraft, balloons, and ground-based instrumentation . In the El Nino year 1997, Indonesia experienced abnormal drought conditions, and the number of land clearing fires by far exceeded the normal annual dry season抯 burning. During this very strong El Nino event of 1997?998, Southeast Asia experienced severe drought, which caused large-scale forest fires. Indonesian Forest fires have been attributed predominantly to El Ni駉 and IOD conditions , this led to the release of large amount of aerosols into the atmosphere, significantly affecting the regional aerosol distribution. The response of the AOD variability to the IOD event of 2006, is found to be different from that observed during 1997, which was associated with both El Nino and IOD. We also study the AOD variability along the equatorial western Indian Ocean and over Indonesia with the help of surface winds, OLR derived from NCEP/NCAR reanalysis data set and rainfall patterns obtained from TRMM in order to substantiate the findings.
P.R.C.Rahul P.S.Salvekar P.C.S.Devara
Indian Institute of Tropical Meteorology,Pune,India
国际会议
西安
英文
1299-1305
2011-08-17（万方平台首次上网日期，不代表论文的发表时间）