Department of Bioenergy, School of Energy, Environment and Natural Resources, Madurai Kamaraj University, Madurai, 625021, India,
Environ Sci Pollut Res Int. 2014;21(13):8188-97. doi: 10.1007/s11356-014-2711-4. Epub 2014 Mar 29.
Rainfall is a key link in the global water cycle and a proxy for changing climate; therefore, proper assessment of the urban environment's impact on rainfall will be increasingly important in ongoing climate diagnostics and prediction. Aerosol optical depth (AOD) measurements on the monsoon seasons of the years 2008 to 2010 were made over four metro regional hotspots in India. The highest average of AOD was in the months of June and July for the four cities during 3 years and lowest was in September. Comparing the four regions, Kolkata was in the peak of aerosol contamination and Chennai was in least. Pearson correlation was made between AOD with climatic parameters. Some changes in the parameters were found during drought year. Temperature, cloud parameters, and humidity play an important role for the drought conditions. The role of aerosols, meteorological parameters, and their impacts towards the precipitation during the monsoon was studied.
降雨是全球水循环的关键环节，也是气候变化的一个指标；因此，在当前的气候诊断和预测中，正确评估城市环境对降雨的影响将变得越来越重要。对 2008 年至 2010 年季风季节在印度四个大都市区热点进行了气溶胶光学深度（AOD）测量。在这 3 年的 4 个月中，AOD 的最高平均值出现在 6 月和 7 月，最低值出现在 9 月。将四个地区进行比较，发现加尔各答的气溶胶污染最严重，而钦奈的污染最轻。对 AOD 与气候参数之间进行了皮尔逊相关性分析。在干旱年份发现了参数的一些变化。温度、云参数和湿度对干旱条件起着重要作用。研究了气溶胶、气象参数及其对季风降水的影响。
