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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >What have we learned about the Indian monsoon from satellite data?
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What have we learned about the Indian monsoon from satellite data?

机译：我们从卫星数据中学到了关于印度季风的哪些信息？

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摘要

In the pre-satellite era, our understanding of the monsoon was based primarily on ground-based observations. The land-sea contrast in surface temperature was considered the primary mechanism that drives the monsoon. During the last 47 years a large amount of data has been obtained from satellites and this has altered our perception about the factors that influence monsoon rainfall. The satellite data has revealed that the clouds in the tropics move eastward along the equator and poleward from the equator to higher latitudes. The net radiant energy available to earth-atmosphere system was found to be a fundamental driving force for monsoon rainfall. The role played by water vapour in controlling vertical stability, latent heat of condensation and greenhouse effect was appreciated better after the advent of satellite data.
机译：在卫星时代之前，我们对季风的了解主要基于地面观测。表面温度的陆海对比被认为是驱动季风的主要机制。在过去的47年中，从卫星获得了大量数据，这改变了我们对影响季风降雨的因素的认识。卫星数据显示，热带地区的云层沿赤道向东移动，从赤道向高纬向极移。发现可用于地球-大气系统的净辐射能是季风降雨的基本驱动力。卫星数据问世后，人们更好地意识到了水蒸气在控制垂直稳定性，凝结潜热和温室效应方面所起的作用。

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