Precipitation bias variability versus various gauges under different climatic conditions over the Third Pole Environment (TPE) region
Precipitation bias variability versus various gauges under different climatic conditions over the Third Pole Environment (TPE) region
复制标题
DOI：
10.1002/joc.4045
复制
发表时间：
2015-06
期刊：
影响因子：
--
通讯作者：
Yingzhao Ma;Yinsheng Zhang;Daqing Yang;S. B. Farhan
中科院分区：
文献类型：
--
作者：
Yingzhao Ma;Yinsheng Zhang;Daqing Yang;S. B. Farhan
目前正在制定一个专门研究第三极环境的国际方案。为了提高水文研究的投入，我们收集了TPE地区241个气象站的降水数据；这些数据来自不同的国家，因此包括不同类型的仪表。采用世界气象组织（WMO）推荐的程序，对数据进行了完整版本的偏差调整，包括对每个站的风致误差、湿损失、蒸发损失和痕量进行调整。结果表明，调整后的年平均降水量从最小4 mm增加到最大409 mm，总体平均值增加了27%，其中中部地区使用的中国标准降水计（CSPG）偏差最大。此外，在不同的气候带中，偏倚表现出不同的时空格局。本研究及其结果将为TPE地区的水文和气候研究提供有益的参考。
An international programme dedicated to the study of the Third Pole Environment (TPE) is now developing. The TPE region is centred on the Tibetan Plateau and concerns the interests of the surrounding countries and regions. To improve input for hydrological research, we collected precipitation data on 241 meteorological stations across the TPE region; these data were obtained from various countries, thus including various types of gauges. Employing the procedure recommended by the World Meteorological Organization (WMO), a full version of bias adjustment was applied to the data, including adjustments for wind‐induced error, wetting loss, evaporation loss and trace amount for each station. The results reveal that the average annual precipitation has increased considerably from a minimum of 4 mm to a maximum of 409 mm with an overall mean of 27% from the adjustment, the largest bias being found in the Chinese standard precipitation gauge (CSPG) which was used in the central TPE region. In addition, the bias shows variable spatial and temporal patterns in different climate zones throughout this area. It is expected that this study and its results will be beneficial for hydrological and climatic studies over the TPE region.