Tmax A2 Change between 2000 and 2050 90th Percentile

ºC change in maximum daily temperature per year between 1986-2015 and 2036 - 2065. The mean annual maximum daily temperature for each downscaled global circulation model (GCM), i.e. csiro, gfdla20, gfdl21, miroc, mpi and ukmo using the Cubic Conformal Atmospheric Model (CCAM) developed by CSIRO (Australia) and updated and modified by the CSIR (South Africa) was calculated for each of the 30 year periods. The absolute difference between the two periods is based on the mean annual maximum daily temperature value and is calculated as follows: (Tmax2050-Tmax2000) for each of the six downscaled GCM models. The 90th percentile is based on these differences. 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`.

1986年至2015年与2036年至2065年两个时段间，逐年单日最高气温的摄氏度变化幅度。针对CSIRO、GFDL-A20、GFDL-21、MIROC、MPI及UKMO共6种经降尺度处理的全球环流模式（GCM，Global Circulation Model），采用由澳大利亚联邦科学与工业研究组织（CSIRO，Commonwealth Scientific and Industrial Research Organisation）研发、南非科学与工业研究委员会（CSIR，Council for Scientific and Industrial Research）更新改进的立方共形大气模式（CCAM，Cubic Conformal Atmospheric Model）完成降尺度处理后，分别计算两个30年时段的年均单日最高气温均值。两个时段的年均单日最高气温均值的绝对差值，以各降尺度GCM模型分别计算为（Tmax2050 - Tmax2000），并基于上述差值得到第90百分位数。数据采用栅格格式存储，分辨率为0.5°，采用投影经纬度坐标参考系统，其参数为`+proj=utm +zone=48 +datum=WGS84 +ellps=WGS84 +towgs84=0,0,0`。