Performance of Quality Assurance Procedures on Daily Precipitation
Performance of Quality Assurance Procedures on Daily Precipitation
复制标题
每日降水质量保证程序的执行情况
DOI：
--
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
K. Kunkel
中科院分区：
文献类型：
--
作者：
J. You;K. Hubbard;S. Nadarajah;K. Kunkel
Abstract The search for precipitation quality control (QC) methods has proven difficult. The high spatial and temporal variability associated with precipitation data causes high uncertainty and edge creep when regression-based approaches are applied. Precipitation frequency distributions are generally skewed rather than normally distributed. The commonly assumed normal distribution in QC methods is not a good representation of the actual distribution of precipitation and is inefficient in identifying the outliers. This paper first explores the use of a single gamma distribution, fit to all precipitation data, in a quality assurance test. A second test, the multiple intervals gamma distribution (MIGD) method, is introduced. It assumes that meteorological conditions that produce a certain range in average precipitation at surrounding stations will produce a predictable range at the target station. The MIGD bins the average of precipitation at neighboring stations; then, for the events in a specific bin, an ...
