我国地面气温格点化数据集的研制

Research and Development of the Grid-based Surface Air Temperature in China

在大气科学研究领城,特别是气候变化检测和数值模拟研究中,与高精度、高时空分辨率的格点资料相比,离散的站点观测资料具有明显的优势。随着国家气象科学数据共享工作的纵深开展,站点资料已不能完全满足用户的需求,通过空间插值技术进行格点化气象要素数据集的研制和服务日益迫切。本文结合国家气象信息中心最新研制的中国地面气温格点数据集,对数据集研制过程中的几个关键技术问题及数据集验证情况进行了阐述。

In comparison with the observational station data, the high - precision and high - resolution grid data have apparent advantage in the research field of the atmospheric science, especially in the climate change detection and numerical simulation. Due to the wide sharing of the national meteorological scientific data, the station data can not fully meet users＇demands, which makes it more and more urgent to develop the grid data set of meteorological elements through exploiting the spatial interpolation skill. Thus, the present study is motivated to illustrate several key issues on the research and development of the grid - based surface air temperature data set in China developed by National Meteorological Information Center. The validation of the data set is assessed as well.