Tmax A2 Change between 2000 and 2050 10th 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 10th 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，逐年日最高温度的摄氏度变化量。针对两个30年时段，分别计算了各经降尺度处理的全球环流模式（GCM, Global Circulation Model）的年平均日最高温度；所用模式包括csiro、gfdla20、gfdl21、miroc、mpi及ukmo，其降尺度过程依托由澳大利亚联邦科学与工业研究组织（CSIRO, Commonwealth Scientific and Industrial Research Organisation，澳大利亚）开发、南非科学与工业研究委员会（CSIR, Council for Scientific and Industrial Research，南非）更新修改的三次共形大气模式（CCAM, Cubic Conformal Atmospheric Model）。两个时段的绝对差值基于年均日最高温度值计算，计算公式为：针对六个降尺度GCM模式分别计算(Tmax2050 - Tmax2000)，并基于上述差值求取第10百分位数。数据集采用栅格格式存储，空间分辨率为0.5°，采用投影经纬度坐标参考系统，其PROJ参数字符串为`+proj=utm +zone=48 +datum=WGS84 +ellps=WGS84 +towgs84=0,0,0`。