中国区域极端降水与月降水指数数据集(1961-2012)
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全球气候变化加剧背景下,科学监测和评估气候的动态变化至关重要。本数据集基于全国756个气象站点的逐日降水数据,提取了月降水和年降水数据,以及逐年的持续干燥指数(CDD)、持续湿润指数(CWD)、强降雨日数(R20)、强降水量(R95P)、极强降雨量(R99P)五个极端降水指数。差值数据的空间分辨率为0.2°,时间范围为1961年—2012年。值得注意的是,本数据中的年降水和月降水数据,均进行了滑动平均(5年)的预处理,可以直接用于长时间序列的变化趋势分析。本数据集可为长时间尺度下全国及区域气候变化和极端气候变化的研究提供数据基础。
In the context of accelerating global climate change, it is critically important to scientifically monitor and assess the dynamic evolution of the climate. This dataset is derived from daily precipitation data collected at 756 national meteorological stations, including monthly and annual precipitation data, as well as five annually calculated extreme precipitation indices: Consecutive Dry Days (CDD), Consecutive Wet Days (CWD), number of heavy precipitation days (R20), total heavy precipitation amount (R95P), and total extremely heavy precipitation amount (R99P). The spatial resolution of the difference data is 0.2°, with a temporal span from 1961 to 2012. Notably, both the annual and monthly precipitation data in this dataset have undergone 5-year moving average preprocessing, and can be directly utilized for trend analysis of long-term time series variations. This dataset provides a foundational data resource for research on national and regional climate and extreme climate variations across long temporal scales.




