中国区域地面气象要素驱动数据集（1979-2018）

中国区域地面气象要素驱动数据集，包括近地面气温、近地面气压、近地面空气比湿、近地面全风速、地面向下短波辐射、地面向下长波辐射、地面降水率共7个要素。数据为NETCDF格式，时间分辨率为3小时，水平空间分辨率为0.1°。可为中国区陆面过程模拟提供驱动数据。
该数据集是以国际上现有的Princeton再分析资料、GLDAS资料、GEWEX-SRB辐射资料，以及TRMM降水资料为背景场，融合了中国气象局常规气象观测数据制作而成。详细过程请参阅参考文献。原始资料来自于气象局观测数据、再分析资料和卫星遥感数据。已去除非物理范围的值，采用ANU-Spline统计插值。精度介于气象局观测数据和卫星遥感数据之间，好于国际上已有再分析数据的精度。

China-region near-surface meteorological element driving dataset includes 7 variables in total: near-surface air temperature, near-surface atmospheric pressure, near-surface specific humidity, near-surface total wind speed, downward shortwave radiation at the surface, downward longwave radiation at the surface, and surface precipitation rate. The data is stored in NETCDF format, with a temporal resolution of 3 hours and a horizontal spatial resolution of 0.1°. It can provide driving data for land surface process simulations over China.

This dataset is developed by merging routine meteorological observation data from the China Meteorological Administration (CMA) with internationally available background datasets including Princeton reanalysis data, GLDAS data, GEWEX-SRB radiation data, and TRMM precipitation data. Detailed production procedures can be found in the referenced literature. Original data sources include meteorological observational data, reanalysis data, and satellite remote sensing data. Non-physically unrealistic values have been removed, and the ANU-Spline statistical interpolation method has been applied. The accuracy of this dataset falls between that of CMA routine observation data and satellite remote sensing data, and is higher than that of existing international reanalysis datasets.

搜集汇总

背景与挑战

背景概述

该数据集是一个高时空分辨率的网格化近地面气象数据集，专为中国陆面过程研究设计，覆盖1979年至2018年，时间分辨率为3小时，空间分辨率为0.1度。它融合了遥感、再分析和站点观测数据，提供包括气温、降水、风速等七个关键气象要素，数据量达235.87 GB，适用于气候分析和环境建模。