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大气科学  2002 

测量云液水柱含量的一个设想

DOI: 10.3878/j.issn.1006-9895.2002.05.10

Keywords: 云液水柱含量,微波衰减,卫星-地面路径

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Abstract:

云液态水柱含量是一个重要的气象学和云雾物理参数.对于云液水柱含量测量已发展了多种技术,但由于云在时空上变化很大,目前地基、飞机以及卫星测量的全部资料,都不能满足数值天气预报、人工增雨及气候变化研究等方面的工作需要.作者提出一种测云水的新方法,即从卫星-地面的微波衰减来确定云水(斜)柱量,并研究了此方法中的测量通道选择及测量方式问题,进行了初步的误差分析研究.结果表明,此方法在现有技术条件下可行,云水的测量精度不难达到20%~30%的水平.与卫星被动微波遥感结合起来,可获得精度更高的云水全球分布资料.

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