Quantitative Precipitation Forecast Techniques for Use in Hydrologic Forecasting
Quantitative Precipitation Forecast Techniques for Use in Hydrologic Forecasting
复制标题
水文预报中使用的定量降水预报技术
DOI：
--
复制
发表时间：
1984
期刊：
影响因子：
--
通讯作者：
M. Hudlow
中科院分区：
文献类型：
--
作者：
K. Georgakakos;M. Hudlow
摘要 定量水文预报通常需要了解降水的时空分布。首先，准确测量感兴趣的特定流域的降水量非常重要。其次，特别是对于小流域和/或较长的预报提前时间，降水预报对于实现最大可能的水文预报精度和最长可能的提前时间至关重要。本文介绍了美国国家气象局 (NWS) 当前的水文预报计划，并强调了定量降水预报 (QPF) 产品与实时水文预报的相关性。定义了支持水文预报应用的 QPF 产品的具体要求，并对当前运行的 QPF 程序进行审查，以确定它们在多大程度上满足这些要求。结论是，目前尚无已知的 QPF 程序能够满足所有所需的要求...
Abstract Quantitative hydrologic forecasting usually requires knowledge of the spatial and temporal distribution of precipitation. First, it is important to accurately measure the precipitation falling over a particular watershed of interest. Second, especially for small watersheds and/or for longer forecast lead times, forecasts of precipitation are critical to the achievement of the greatest possible hydrologic forecast accuracy and longest possible lead time. This paper describes the current hydrologic forecasting program of the U.S. National Weather Service (NWS) and highlights the relevance of Quantitative Precipitation Forecasting (QPF) products to real-time hydrologic forecasting. Specific requirements for QPF products in support of hydrologic forecasting applications are defined and current operational QPF procedures are reviewed to determine to what extent they meet these requirements. It is concluded that no known QPF procedures capable of fulfilling all desired requirements are currently availa...