ISLSCP II CLIMATE RESEARCH UNIT (CRU) MONTHLY CLIMATE DATA

This data set contains a mean monthly climatology for several climate variables averaged over the period from 1961 to 1990, and constructed from a data set of station 1961-1990 climatological normals, numbering between 19,800 (precipitation) and 3,615 (windspeed; see New et al, 1999 for details). The station data were interpolated as a function of latitude, longitude and elevation using thin-plate splines. The data comprise a suite of climate elements: precipitation, mean, maximum, and minimum temperature, frost frequency, diurnal temperature range, radiation, wet-day frequency, vapor pressure, wind, and cloud cover. There are 23 files in this data set provided at 0.5 and 1.0 degree spatial resolutions.

本数据集包含基于1961-1990年时段平均得到的多气候变量逐月气候态，其构建自一套站点观测的1961-1990年气候基准值数据集，该站点数据集的站点数量因气候要素而异：降水要素对应19800个站点，风速要素对应3615个站点，详细信息参见New等（1999）的研究。站点数据以纬度、经度与海拔为插值变量，采用薄板样条插值（thin-plate splines）法完成空间插值。本数据集涵盖多类气候要素：降水、平均气温、最高气温、最低气温、霜冻频率、气温日较差、辐射、湿日频率、水汽压、风速以及云量。本数据集共包含23个文件，空间分辨率分别为0.5度与1.0度。