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首页> 外文期刊>Journal of Hydroinformatics >Radar-rainfall estimation algorithms of Hydro-NEXRAD
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Radar-rainfall estimation algorithms of Hydro-NEXRAD

机译:Hydro-NEXRAD的雷达降雨估计算法

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Hydro-NEXRAD is a prototype software system that provides hydrology and water resourcencommunities with ready access to the vast data archives of the U.S. weather radar network knownnas NEXRAD (Next Generation Weather Radar). This paper describes radar-rainfall estimationnalgorithms and their modular components used in the Hydro-NEXRAD system to generate rainfallnproducts to be delivered to users. A variety of customized modules implemented in Hydro-NEXRADnperform radar-reflectivity data processing, produce radar-rainfall maps with user-requested spacenand time resolution, and combine multiple radar data for basins covered by multiple radars. Systemnusers can select rainfall estimation algorithms that range from simple (‘Quick Look’) to complex andncomputing-intensive (‘Hi-Fi’). The ‘Pseudo NWS PPS’ option allows close comparison with thenalgorithm used operationally by the US National Weather Service. The ‘Custom’ algorithm enablesnexpert users to specify values for many of the parameters in the algorithm modules according tontheir experience and expectations. The Hydro-NEXRAD system, with its rainfall-estimation algorithms,ncan be used by both novice and expert users who need rainfall estimates as references or as inputnto their hydrologic modelling and forecasting applications.
机译:Hydro-NEXRAD是一个原型软件系统,可为水文和水资源社区提供对美国天气雷达网络已知的NEXRAD(下一代天气雷达)的大量数据档案的便捷访问。本文介绍了Hydro-NEXRAD系统中用于生成降雨产品并交付给用户的雷达降雨估算算法及其模块化组件。在Hydro-NEXRAD中实现的各种定制模块可实现雷达反射率数据处理,生成用户要求的时空和时间分辨率的雷达降雨图,并将多个雷达数据组合成多个雷达覆盖的盆地。系统用户可以选择降雨估计算法,范围从简单(“快速查看”)到复杂而计算量大(“ Hi-Fi”)。 “伪NWS PPS”选项允许与美国国家气象局在运营中使用的算法进行仔细比较。 “自定义”算法使专家级用户可以根据自己的经验和期望为算法模块中的许多参数指定值。 Hydro-NEXRAD系统及其降雨估计算法,可供需要降雨估计作为参考或输入水文建模和预报应用程序的新手和专家用户使用。

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