Time-Continuous Assimilation of Remote-Sounding Data and Its Effect an Weather Forecasting
Time-Continuous Assimilation of Remote-Sounding Data and Its Effect an Weather Forecasting
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遥测数据的时间连续同化及其对天气预报的影响
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
R. Atlas
中科院分区：
文献类型：
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作者：
M. Ghil;R. Atlas
摘要推导了卫星探测温度时间连续四维同化的方法。提出的方法包括时间连续版本的直接插入，连续校正和统计线性回归。它们被应用于从极轨道卫星NOAA 4和Nimbus 6上的仪器进行的辐射测量中获得的温度探测数据。这些数据是在1976年1月至3月的美国数据系统测试期间收集的。进行了一系列综合试验，以研究使用不同数量的卫星数据和不同同化方法的效果。试验包括仅同化NOAA 4号卫星的数据、仅同化Nimbus 6号卫星的数据以及同化两颗卫星的数据。其他实验涉及的变化，在我们的时间连续的统计同化方法和asynoptic连续校正方法的应用。间歇同化的探空资料也进行了测试，一个…
Abstract Methods are derived for the time-continuous four-dimensional assimilation of satellite sounding temperatures. The methods presented include time-continuous versions of direct insertion, successive correction and statistical linear regression. They are applied to temperature sounding data obtained from radiance measurements taken by instruments aboard the polar-orbiting satellites NOAA 4 and Nimbus 6. The data were collected during the U.S. Data System Test in January-March 1976. A comprehensive series of experiments was performed to study the effects of using various amounts of satellite data and differing methods of assimilation. The experiments included the assimilation of data from the NOAA 4 satellite only, from Nimbus 6 only, and of data from both satellites combined. Other experiments involved variations in the application of our time-continuous statistical assimilation methods and of asynoptic successive correction methods. Intermittent assimilation of the sounding data was also tested, an...