CSIRO Dawn to 2100 SRESA1B huss - GCM Specific Humidity datasets and trends 1850 to 2100 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_huss dataset contains the Specific Humidity variable for various GCM's and runs (multiple runs being averaged to a single file if existing) under the SRESA1B scenario (SRESA1B emissions 2001 to 2100, then constant GHG 720ppm). This variable has 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. 14 GCM models are available with data for variables being in 12 month, annual and 4 seasons(DJF, MAM,JJA,SON) format with 40 files totaling 4.13 GB as Netcdf files. Available for internal use and analysis by CSIRO staff on the HPSC cherax.

CSIRO Dawn-2100数据集档案涵盖了约1850年至2100年的大气、陆地与海洋学变量数据集，时间跨度依所用气候模型而定。该数据集通过整合源自全球不同国家的25个不同全球气候模型（Global Climate Model，GCM）中的若干款的20世纪（20C3M）及其他情景（当前为SRESA1B或SRESA2）数据拼接构建而成。其中SRESA1B_huss数据集包含SRESA1B情景下多款GCM模拟试验中的比湿（Specific Humidity）变量；若存在多组模拟试验，则将其平均整合为单个文件。SRESA1B情景指2001年至2100年采用SRESA1B排放路径，之后维持温室气体（Greenhouse Gas，GHG）浓度为720ppm。该比湿变量还经过进一步分析，生成了基于以区域加权平均全球升温值为基准的逐月时间序列计算得到的逐月、季节与年度趋势数据。目前共有14个GCM模型的可用数据，变量数据以逐月、年度及四个季节（DJF、MAM、JJA、SON）格式存储，共计40个NetCDF文件，总容量为4.13 GB。该数据集仅供CSIRO员工在HPSC cherax计算平台上进行内部使用与分析。