Tmin 1986-2015 10th Percentile

The current long term annual climate conditions for the 30-year period 1986-2015. The minimum daily temperature values simulated by six different global circulation models (GCMs), i.e. csiro, gfdl20, gfdl21, miroc, mpi, and ukmo were downscaled with the Cubic Conformal Atmospheric Model (CCAM) developed by CSIRO (Australia) and updated and modified by the CSIR (South Africa). The mean minimum daily temperature was calculated per year for each of the six downscaled GCMs for the 30-year period. The 10th percentile values are based on the mean 30-year minimum daily temperature per year from the six downscaled GCMs. Data are in raster format with a 0.5º resolution using a projected latitude / longitude coordinate reference system with `+proj=utm +zone=48 +datum=WGS84 +ellps=WGS84 +towgs84=0,0,0`.本数据集涵盖1986-2015年这一30年时段的长期年均气候条件。研究采用由澳大利亚联邦科学与工业研究组织（Commonwealth Scientific and Industrial Research Organisation, CSIRO）研发、南非科学与工业研究理事会（Council for Scientific and Industrial Research, CSIR）更新改进的三次共形大气模式（Cubic Conformal Atmospheric Model, CCAM），对6种不同全球环流模式（Global Circulation Models, GCMs）——即csiro、gfdl20、gfdl21、miroc、mpi、ukmo——模拟得到的日最低气温数据进行降尺度处理。针对上述6种经降尺度处理的全球环流模式，分别计算了该30年时段内每年的平均日最低气温。第10百分位数值基于6种经降尺度处理的全球环流模式逐年的平均日最低气温计算得出。数据采用栅格格式存储，分辨率为0.5°，投影坐标参考系统采用通用横轴墨卡托投影（Universal Transverse Mercator, UTM）第48带，基准面为WGS84，具体投影参数为`+proj=utm +zone=48 +datum=WGS84 +ellps=WGS84 +towgs84=0,0,0`。