中国1km分辨率月平均气压数据集（2004年）

该数据集是中国1km分辨率月平均气压数据，时间为2004年1—12月。数据基于中国地面824个基准、基本气象台站2004年1—12月本站平均气压的月值资料，数据经过严格的质量控制和筛选后，采用全国1km分辨率的地形图DEM为协变量，利用ANUSPLIN软件的样条法 （TPS，Thin Plate Spline）进行空间插值，生成2004年1—12月的中国地面水平分辨率1km×1km的月格点数据，为便于存储数据均为int16型，数据单位为0.1 hPa。每年数据集包含12个数据体，数据体命名采用年份+月份，如20041即为2004年1月数据。本数据集包含的地理空间范围是全国主要陆地（包含港澳台地区），不含南海岛礁等区域。

This dataset consists of monthly mean atmospheric pressure data for China at a 1 km resolution, covering the period from January to December 2004. The data is sourced from monthly mean station-level atmospheric pressure records collected from 824 national reference and basic surface meteorological stations across China during January to December 2004. After undergoing strict quality control and screening, spatial interpolation was performed using the Thin Plate Spline (TPS) method in ANUSPLIN software, with the national 1 km resolution topographic DEM as the covariate, to generate monthly gridded surface data of China with a horizontal resolution of 1 km × 1 km for each month from January to December 2004. For ease of storage, all data are stored in int16 format, with a unit of 0.1 hPa. Each annual dataset contains 12 data files, which are named by combining the year and month; for example, "20041" refers to the data for January 2004. The geographical coverage of this dataset includes the main land areas of China (including Hong Kong, Macao and Taiwan regions), excluding areas such as the South China Sea islands and reefs.