CSIRO Dawn to 2100 SRESA1B evap - GCM Morton evaporation datasets and trends 1850 to 2100 (calculated) using the SRESA1B 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 SRESA1B_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 SRESA1B scenario (SRESA1B emissions 2001 to 2100, then constant GHG 720ppm). 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. 11 GCM models are available with data for variables being in 12 month, annual and 4 seasons(DJF, MAM,JJA,SON) format with 104 files totaling 12.7 GB as Netcdf files. Available for internal use and analysis by CSIRO staff on the HPSC cherax.

CSIRO Dawn-2100 档案库包含了约1850年至2100年（依具体模型而定）的大气、陆地及海洋学变量数据集。此类数据集通过拼接来自多个国家的25种不同全球气候模型（Global Climate Model, GCM）的20世纪（20C3M）及其他情景（当前为SRESA1B或SRESA2）数据构建而成。其中SRESA1B_cal_evap数据集特别包含Morton系列变量：湖面蒸发量（Lake evaporation, EVAP）、区域实际蒸散发（Areal actual evapotranspiration, AVAP）、点位潜在蒸散发（Point potential evapotranspiration, PVAP）以及区域潜在蒸散发（Areal potential evapotranspiration, WVAP）。上述变量均基于SRESA1B情景下的全球气候模型输出计算得到，输入参数包括气温、（计算所得的）相对湿度、太阳辐射、1975-2004年的年平均降雨量，以及用于计算日照率的月度常数`a`与`b`。SRESA1B情景指2001年至2100年采用SRESA1B排放情景，后续温室气体浓度恒定为720ppm。上述变量还经过进一步分析，生成了月度、季节及年度趋势数据，该趋势数据由以区域加权平均全球变暖值为基准的月度时间序列计算得出。目前共有11个全球气候模型的数据集可用，变量数据涵盖月度、年度及四个季节（DJF、MAM、JJA、SON）格式，包含104个NetCDF格式文件，总容量为12.7 GB。该数据集仅供澳大利亚联邦科学与工业研究组织（CSIRO）员工在HPSC cherax平台上进行内部使用与分析。