CSIRO Dawn to 2100 SRESA2 evap - GCM Morton evaporation datasets and trends 1850 to 2100 (calculated) using the SRESA2 Scenario

The CSIRO Dawn-2100 archive contains datasets for atmospheric, land and oceanographic variables for the approximate period 1850 - 2100 (dependent on model). These have been created through the concatenation of 20th century (20C3M) and other scenario (currently SRESA1B or SRESA2) data from a number of the 25 differant global climate models (GCM) from various countries. The SRESA2_cal_evap dataset in particular contains the Morton variables Lake evaporation (EVAP), Areal actual evapotranspiration (AVAP), Point potential evapotranspiration (PVAP) and Areal potential evapotranspiration (WVAP) (which have been calculated from GCM outputs of air temperature, (calculated) relative humidity, solar radiation, annual rainfall average for 1975-2004 and monthly constants of `a and b` to calculate sunshine ratio) under the SRESA2 scenario emissions from 2001 to 2100 . These variables have also been further analysed to give monthly, seasonal and annual trend data, calculated from a monthly timeseries referenced to the area-weighted mean global warming values. 8 GCM models are available with data for variables being in 12 month, annual and 4 seasons(DJF, MAM,JJA,SON) format with 80 files totaling 12.5 GB as Netcdf files. Available for internal use and analysis by CSIRO staff on the HPSC cherax.

英联邦科学与工业研究组织（Commonwealth Scientific and Industrial Research Organisation，简称CSIRO）Dawn-2100数据集存档涵盖约1850年至2100年（依具体气候模型而定）的大气、陆地与海洋学变量数据集。该数据集通过整合来自全球多个国家的25种不同全球气候模型（Global Climate Model，简称GCM）的20世纪气候耦合模式比较计划（20C3M）及其他排放情景（当前为SRESA1B或SRESA2）数据构建而成。其中SRESA2_cal_evap数据集尤为特殊，其包含莫顿（Morton）系列变量：湖面蒸发量（Lake Evaporation，简称EVAP）、区域实际蒸散发量（Areal Actual Evapotranspiration，简称AVAP）、单点潜在蒸散发量（Point Potential Evapotranspiration，简称PVAP）以及区域潜在蒸散发量（Areal Potential Evapotranspiration，简称WVAP）。上述变量均基于2001年至2100年SRESA2情景排放下的全球气候模型输出数据计算得到，计算所用输入包括气温、（计算所得）相对湿度、太阳辐射、1975-2004年年均降雨量，以及用于计算日照比率的月度常数a与b。此外，研究人员还对上述变量开展了进一步分析，基于以区域加权平均全球变暖数值为基准的月度时间序列，生成了月度、季节与年度趋势数据。当前共提供8种全球气候模型的数据集，变量数据以月度、年度及4个季节（DJF、MAM、JJA、SON）格式存储，总计80个NetCDF格式文件，总容量达12.5GB。该数据集仅供英联邦科学与工业研究组织（CSIRO）员工在高性能科学计算（High Performance Scientific Computing，简称HPSC）cherax平台上进行内部使用与分析。