Great Artesian Basin groundwater flow model scenario outputs: Cape York model: Future use

Modelled groundwater levels from 2010 to 2070 used to estimate the impact of climate change and future groundwater resource development on groundwater levels in the Cape York area of the GAB.The modelling considered different scenarios of climate and groundwater development: Scenario A (historical climate and current development); Scenario C (future climate and current development) and Scenario D (future climate and future development). The future climate scenarios included the wet extreme (wet), the median (mid) and the dry extreme (dry).This data set contains spatial data that were created from the outputs from climate change scenario models using on the Cape York groundwater flow model.The subfolder "heads" contains rasters of spatial distributions of hydraulic head for the year 2070 that were output based on projections of future climate and projections of future groundwater extraction (Scenario D). For each climate change scenario there are three outputs: one for each modelled aquifer thickness (100, 150 and 200 metres).The subfolder "differences" contains rasters of differences between the spatial distributions of hydraulic head that were output by future use scenario models and by either (a) the respective "A scenario" model or (b) the respective "Base scenario" model (the modelled hydraulic head for the year 2010). 'No data' value is 1e30 for heads rasters, -9999 for differences rasters Cell size is 5000m x 5000mFor more information, please refer to Welsh WD, Moore CR, Turnadge CJ, Smith AJ and Barr TM (2012) "Modelling of climate and groundwater development. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment ". CSIRO Water for a Healthy Country Flagship, Australia.Projection is Albers equal area conic, with central meridian 143 degrees longitude, standard parallels at -21 and -29 degrees latitude and latitude of projection's origin at -25.

本数据集包含2010年至2070年的模拟地下水位数据，用于评估气候变化与未来地下水资源开发对大自流盆地（Great Artesian Basin，GAB）约克角地区地下水位的影响。本次建模共设置三类气候与地下水开发情景：情景A（历史气候与当前开发水平）、情景C（未来气候与当前开发水平）以及情景D（未来气候与未来开发水平），其中未来气候情景涵盖极端湿润（wet）、中等（mid）与极端干旱（dry）三种类型。
本数据集包含基于约克角地下水流模型输出的气候变化情景模型结果生成的空间数据。子文件夹"heads"内存储了基于未来气候预估与未来地下水开采预估（情景D）生成的2070年水力水头空间分布栅格数据。针对每种气候变化情景，共包含三类输出，分别对应100米、150米及200米的模拟含水层厚度。
子文件夹"differences"内存储了未来使用情景模型与（a）对应情景A模型或（b）对应"基准情景"模型（即2010年模拟水力水头）输出的水力水头空间分布差值栅格数据。其中，水头栅格的无数据值为1e30，差值栅格的无数据值为-9999。栅格单元尺寸为5000米×5000米。
如需获取更多信息，请参考Welsh WD、Moore CR、Turnadge CJ、Smith AJ及Barr TM（2012）发布的技术报告《气候变化与地下水开发模拟——澳大利亚政府委托CSIRO大自流盆地水资源评估》，该报告由澳大利亚联邦科学与工业研究组织（CSIRO）健康国家水资源旗舰项目出品。
本数据集采用阿尔伯斯等积圆锥投影（Albers equal area conic），中央经线为143°经度，标准纬线为南纬21°与南纬29°，投影原点纬度为南纬25°。