Grant Group and Poole Sandstone standing water level surface

This data set contains hydraulic head values for the interconnected Grant Group and Poole Sandstone aquifers obtained from multiple sources including: (i) historical field measurement data stored and available from from the Department of Water and Environmental Regulation Water Information Reporting online data portal, (ii) field measurement data collected as part of targeted field investigations in Taylor et al. (2018) and (iii) field measurements collated from various hydrogeological investigation reports for Indigenous communities and pastoral station groundwater supplies. In this data set, hydraulic head values from 143 bore sites were identified as being suitable to interpolate a standing water level surface for the Grant Group and Poole Sandstone aquifers. ArcGIS was used to interpolate point hydraulic head data into a continuous standing water level surface for the entire extent of the Grant Group and Poole Sandstone within the Fitzroy catchment and some surrounding areas. The purpose of the standing water level surface is to map and understand the spatial changes in depth to hydraulic head which can be related to the cost of pumping the resource.\nLineage: Hydraulic head values for the interconnected Grant Group and Poole Sandstone aquifers were obtained from multiple sources including: (i) historical field measurement data stored and available from from the Department of Water and Environmental Regulation Water Information Reporting online data portal, (ii) field measurement data collected as part of targeted field investigations in Taylor et al. (2018) and (iii) field measurements collated from various hydrogeological investigation reports for Indigenous communities and pastoral station groundwater supplies. Little temporal hydraulic head data exists for the Grant Group and Poole Sandstone aquifers, with most bores having a few spot measurements either (i) at the time of drilling, (ii) during subsequent bore testing close to the installation date, (iii) as part of rehabilitation or maintenance on the bore, or (iv) as part of occasional monitoring. In this data set, 143 bores were identified as being suitable to interpolate a standing water level surface for the Grant Group and Poole Sandstone aquifers. ArcGIS was used to interpolate point hydraulic head data into a continuous standing water level surface for the entire extent of the Grant Group and Poole Sandstone within the Fitzroy catchment and some surrounding areas. Each data point was collected using the Universal Transverse Mercator (UTM) coordinate system and the data has been projected as GDA_1994_MGA_Zone_51. The grided and point data is presented as standing water level in metres above or below the natural surface.

本数据集包含相互连通的格兰特组和普尔砂岩含水层的水头值，数据来源于多个渠道：（i）水利与环境监管部水资源信息报告在线数据门户存储并提供的历史实地测量数据；（ii）泰勒等人（2018）开展的针对性现场调查中收集的实地测量数据；（iii）从针对原住民社区和牧场地下水供应的各类水文地质调查报告中整理的实地测量数据。本数据集中，来自143个钻孔点的水头值被确定为适用于插值生成格兰特组和普尔砂岩含水层的静水位面。使用ArcGIS将点水头数据插值为菲茨罗伊流域内及周边部分区域格兰特组和普尔砂岩全域的连续静水位面。构建该静水位面的目的在于绘制并理解水头埋深的空间变化，这与地下水开采成本直接相关。
数据谱系：相互连通的格兰特组和普尔砂岩含水层的水头值来源于多个渠道，包括上述提及的三类。格兰特组和普尔砂岩含水层的水头时间序列数据较为匮乏，大多数钻孔仅有少量单点测量值，这些测量分别在（i）钻探时、（ii）安装日期附近的后续钻孔测试期间、（iii）钻孔修复或维护过程中，或（iv）不定期监测时获取。本数据集中，143个钻孔被确定为适用于插值生成格兰特组和普尔砂岩含水层的静水位面。使用ArcGIS将点水头数据插值为菲茨罗伊流域内及周边部分区域格兰特组和普尔砂岩全域的连续静水位面。每个数据点采用通用横轴墨卡托投影（UTM）坐标系采集，数据已投影至GDA_1994_MGA_51区。网格数据和点数据均以相对于自然地表的静水位（单位：米，高于或低于地表）表示。