Microwave observations of precipitable water

S. Tjemkes, G. Stephens
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Abstract

Global warming is a contemporary topic of great scientific and social interest. Current models predict a temperature increase as large as 4 K when the atmospheric concentration of carbon dioxide is doubled. The coupling of the hydrological cycle with the initial forcing by carbon dioxide appears to be crucial in these calculations. At present however, it is not evident that the hydrological cycle is correctly modeled. And a comparison of the various components of this cycle with observations is needed. In this presentation observations are presented which could be used to validate the water vapor distributions computed by general circulation models. A method for retrieving precipitable water from observations by the Special Sensor Microwave/Imager (SSM/I) over the global oceans is described. Preliminary results of the retrieved precipitable water and near surface wind velocities for September 1987 are described
可降水量的微波观测
全球变暖是一个具有重大科学和社会意义的当代话题。目前的模型预测,当大气中二氧化碳浓度增加一倍时,温度将升高4摄氏度。在这些计算中,水文循环与二氧化碳初始强迫的耦合似乎是至关重要的。然而,目前尚不清楚水文循环模型是否正确。需要将这个周期的各个组成部分与观测结果进行比较。在本报告中,提出了可用于验证一般环流模式计算的水蒸气分布的观测结果。本文介绍了一种利用特殊传感器微波/成像仪(SSM/I)在全球海洋上的观测资料提取可降水量的方法。本文叙述了1987年9月反演的可降水量和近地面风速的初步结果
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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