中国30年平均1-km月度气候要素数据集(1951-1980, 1981-2010)
收藏资源简介:
作者在中国国家气象台站1951-1980年和1981-2010年各30年平均气象记录基础上,利用薄板光顺样条法和ANUSPLIN (4.4)计算工具,对气温、降水和日照百分率3个气候指标进行1 km空间转换,采用广义交叉验证法、平均绝对误差和均方根误差以及线性拟合等方法,检验台站数据和插值数据的精度,确定插值数据的准确可靠性,最终获得中国30年平均1-km月度气候要素数据集(1951-1980, 1981-2010)。数据集存储为.asc、.grd和.tif格式,由216个数据文件组成,数据量为29.7 GB(压缩为8个文件,3.35 GB)。
Based on the 30-year average meteorological records from China National Meteorological Stations during 1951–1980 and 1981–2010, the authors used the Thin Plate Smoothing Spline method and the ANUSPLIN (version 4.4) tool to conduct 1-km spatial interpolation for three climatic indicators: air temperature, precipitation, and percentage of sunshine duration. Methods including Generalized Cross Validation (GCV), Mean Absolute Error (MAE), Root Mean Square Error (RMSE), and linear fitting were applied to verify the accuracy of both station-measured and interpolated data, confirming the reliability of the interpolated results. Finally, the 30-year average 1-km monthly climatic factor dataset for China (1951–1980, 1981–2010) was obtained. The dataset is stored in .asc, .grd and .tif formats, consisting of 216 data files with a total uncompressed size of 29.7 GB (compressed into 8 files with a size of 3.35 GB).




