Extension of the TAMSAT Satellite-Based Rainfall Monitoring over Africa and from 1983 to Present
Extension of the TAMSAT Satellite-Based Rainfall Monitoring over Africa and from 1983 to Present
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DOI：
10.1175/jamc-d-14-0016.1
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发表时间：
2014-12
影响因子：
3
通讯作者：
E. Tarnavsky;David Grimes;Ross Maidment;E. Black;Richard;-P.;Allan;M. Stringer
中科院分区：
文献类型：
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作者：
E. Tarnavsky;David Grimes;Ross Maidment;E. Black;Richard;-P.;Allan;M. Stringer
利用卫星数据和地面观测（TAMSAT）降雨监测产品的热带气象学应用已经扩展到提供整个非洲的空间连续降雨估计。这是通过一种新的、基于气候学的校准来实现的，这种校准在空间和时间上都是不同的。因此，现在在每10天周期（十年）结束时以4公里空间分辨率发布泛非覆盖的累积雨量估计。通过常规提供验证报告，将10天（每隔一天）的TAMSAT降雨量估计与独立的测量值进行比较，提高了产品对决策的效用。本文介绍了应用TAMSAT方法生成泛非降雨监测产品的方法。通过与量规测量的比较表明，该方法提供了熟练的估计，尽管有系统的干偏差。这项研究说明了TAMSAT作为…
AbstractTropical Applications of Meteorology Using Satellite Data and Ground-Based Observations (TAMSAT) rainfall monitoring products have been extended to provide spatially contiguous rainfall estimates across Africa. This has been achieved through a new, climatology-based calibration, which varies in both space and time. As a result, cumulative estimates of rainfall are now issued at the end of each 10-day period (dekad) at 4-km spatial resolution with pan-African coverage. The utility of the products for decision making is improved by the routine provision of validation reports, for which the 10-day (dekadal) TAMSAT rainfall estimates are compared with independent gauge observations. This paper describes the methodology by which the TAMSAT method has been applied to generate the pan-African rainfall monitoring products. It is demonstrated through comparison with gauge measurements that the method provides skillful estimates, although with a systematic dry bias. This study illustrates TAMSAT’s value as ...