Absorbing aerosols and pre-summer monsoon hydroclimate variability over the Indian subcontinent: The challenge in investigating links
作者： Massimo Bollasina , Sumant Nigam
DOI: 10.1016/J.ATMOSRES.2009.06.008
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摘要: Article history: Received 23 March 2009 in revised form 2 June Accepted 17 The sub-monthly evolution of the interannual variations absorbing aerosols and related hydrometeorology over South Asia pre-monsoon period is investigated from analysis pentad-resolution observational datasets. It shown that (late April–early May) are characterized by increased aerosols, reduced cloudiness precipitation, downward shortwave radiation. Lead-lag regressions indicate significant influence synoptic scale advection (and vertical motion) simultaneously shaping aerosol distribution associated hydroclimate (precipitation, cloudiness, surface radiation, 2-m air temperature) Indo-Gangetic Plain. above findings can be interpreted as a manifestation “semi-direct” effect if one not mindful prevailing circulation anomalies their concurrent impact on hydroclimate. complex interplay among dynamics precipitation also shows challenge extracting an analysis. Finally, points to pitfalls columnar, circulation-blind framework investigating aerosol–monsoon interactions, concern relevance analyses long-term trends, well.
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