一系列质量控制(质量管理) 过程为时期 1980-2009 从全球电信系统(GTS ) 在基于计量器的全球每日的降水数据集上被执行。新全球每日的降水(NGDP ) 数据集被使用那些质量管理过程消除错误的记录构造。NGDP 数据集用 NOAA 气候预言中心被评估降水(CMAP ) 和全球降水气候学工程(GPCP ) 的合并分析降水数据集。结果证明频率分发和 NGDP 的空间分发模式从 CMAP 和 GPCP 数据集与那些有好匹配。有 CMAP 和 GPCP 数据的全球吝啬的关联系数为 NGDP 数据为原来的 GTS 降水数据从 0.24 增加了到大约 0.70。相应地,根均方差(RMSE ) 每天每天从 12 公里减少了到 1 公里。NGDP 每月的降水的 interannual 可变性与在亚洲的 CMAP 和 GPCP 数据集一致。同时,为 NGDP 数据集的地球上的大多数陆地区域的季节的可变性与 CMAP 和 GPCP 降水 products.CitationNie 也一致, S.-P. ,罗·伊, W.-P. 李,等, 2012:从 1980 ~ 2009 的全球基于计量器的每日的降水数据集的质量控制和分析。副词。Clim。变化物件, 3 (1 ) , doi:10.3724/SP .J.1248.2012.00045。
A series of quality control (QC) procedures were performed on a gauge-based global daily precipitation dataset from the Global Telecommunication System (GTS) for the period 1980-2009. A new global daily precipitation (NGDP) dataset was constructed by applying those QC procedures to eliminate erroneous records. The NGDP dataset was evaluated using the NOAA Climate Prediction Center Merged Analysis of Precipitation (CMAP) and the Global Precipitation Climatology Project (GPCP) precipitation datasets. The results showed that the frequency distribution and spatial distribution pattern of NGDP had a nice match with those from the CMAP and GPCP datasets. The global mean correlation coefficients with the CMAP and GPCP data increased from 0.24 for original GTS precipitation data to about 0.70 for NGDP data. Correspondingly, the root mean square errors (RMSE) decreased from 12 mm per day to 1 mm per day. The interannual variabilities of NGDP monthly precipitation are consistent with the CMAP and GPCP datasets in Asia. Meanwhile, the seasonal variabilities for most land areas on the Earth of NGDP dataset are also consistent with the CMAP and GPCP precipitation products.