GIS analysis of HYDMEAS - Hydstra Groundwater Measurement Update: NSW Office of Water - Nov2013

## **Abstract** \n\nThe dataset was derived by the Bioregional Assessment Programme from Hydstra Groundwater Measurement Update - NSW Office of Water, Nov2013. The source dataset ia identified in the Lineage field in this metadata statement. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement.\n\n\n\nDisplays the original Hydstra measurement (HYDMEAS) tabular data records (as stored in the Hydstra software platform) in a GIS format for interpretation and analysis. \n\n\n\nAnalysis completed on this dataset includes extracts to determine location and status of current monitoring bores:\n\nHYDMEAS - original tabular database file (dbf) showing groundwater levels\n\nHYDMEAS_XY_all - displays all original tabular data in GIS shapefile format\n\nHYDMEAS_unique_bores - shows one record for each unique bore station ID\n\nHYDMEAS_2008 - All HYDMEAS data from 2008 or later\n\nHYDMEAS_2008to2013_mulitple_reading - All HYDMEAS data from 2008 or later which has been monitored twice or more (in that period), produced to estimate groundwater level monitoring bores\n\n\n\nNational Groundwater Information System (NGIS) data supplied as a comparison of HYDMEAS monitoring estimates.\n\n\n\nHydstra is a water resources time series data management system developed by KISTERS Pty Ltd.\n\n## **Purpose** \n\nProvide spatial distribution of groundwater level monitoring status and reading for New South Wales.\n\n## **Dataset History** \n\nHYDMEAS - original tabular data\n\n\n\nHYDMEAS_XY_all - displays all original tabular data in GIS format - Displayed as XY in ArcGIS based on Lat and Long attributes and exported as a point shapefile\n\n\n\nHYDMEAS_unique_bores - shows one record for each unique bore ID - Dissolved HYDMEAS_XY_all based on STATION field\n\n\n\nHYDMEAS_2008 - All HYDMEAS data from 2008 or later - Selected based on DATE field\n\n\n\nHYDMEAS_2008to2013_mulitple_reading - All HYDMEAS data from 2008 or later which has been monitored twice or more (in that period), produced to estimate groundwater level monitoring bores - HYDMEAS_2008 dataset dissolved based on STATION and a count field added. Only bores with count of 2 or more were retained\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2014) GIS analysis of HYDMEAS - Hydstra Groundwater Measurement Update: NSW Office of Water - Nov2013. Bioregional Assessment Derived Dataset. Viewed 12 March 2019, http://data.bioregionalassessments.gov.au/dataset/d414c703-aabd-43af-81e0-30aab4d9dfb1.\n\n## **Dataset Ancestors** \n\n* **Derived From** [Hydstra Groundwater Measurement Update - NSW Office of Water, Nov2013](https://data.gov.au/data/dataset/08b34518-c947-4665-82e5-c144b5b24e01)\n\n

## **摘要**
本数据集由生物区域评估计划（Bioregional Assessment Programme）基于2013年11月新南威尔士州水务局（NSW Office of Water）的《Hydstra地下水测量更新》（Hydstra Groundwater Measurement Update）衍生而来。源数据集的相关信息可参见本元数据声明中的“谱系（Lineage）”字段，本衍生数据集的制作流程详见本元数据声明中的“历史（History）”字段。

本数据集以地理信息系统（Geographic Information System, GIS）格式展示原始Hydstra测量（HYDMEAS）的表格数据记录（即存储于Hydstra软件平台中的数据），以供解译与分析使用。

针对本数据集开展的分析工作包括提取相关数据以确定当前监测井的位置与状态：
HYDMEAS - 原始表格数据库文件（dbf格式），用于展示地下水位数据
HYDMEAS_XY_all - 以GIS形状文件（shapefile）格式展示全部原始表格数据
HYDMEAS_unique_bores - 为每个唯一监测井站ID展示一条记录
HYDMEAS_2008 - 收录2008年及以后的全部HYDMEAS数据
HYDMEAS_2008to2013_multiple_reading - 收录2008年及以后、在此期间被至少监测两次的全部HYDMEAS数据，用于估算地下水位监测井的相关参数

配套提供的国家地下水信息系统（National Groundwater Information System, NGIS）数据，可用于与HYDMEAS监测估算结果进行对比分析。

Hydstra是由KISTERS有限公司（KISTERS Pty Ltd）开发的水资源时序数据管理系统。

## **数据用途**
本数据集旨在展示新南威尔士州地下水位监测状态与监测值的空间分布特征。

## **数据集制作历史**
HYDMEAS - 原始表格数据

HYDMEAS_XY_all - 以GIS格式展示全部原始表格数据——基于纬度、经度属性在ArcGIS中以XY坐标形式展示，并导出为点形状文件

HYDMEAS_unique_bores - 为每个唯一监测井ID展示一条记录——基于“站号（STATION）”字段对HYDMEAS_XY_all进行融合处理后得到

HYDMEAS_2008 - 收录2008年及以后的全部HYDMEAS数据——基于“日期（DATE）”字段筛选得到

HYDMEAS_2008to2013_multiple_reading - 收录2008年及以后、在此期间被至少监测两次的全部HYDMEAS数据，用于估算地下水位监测井参数——基于HYDMEAS_2008数据集，按“站号（STATION）”字段融合并添加计数字段，仅保留监测次数≥2的监测井数据。

## **数据集引用**
生物区域评估计划（2014）《HYDMEAS的GIS分析——Hydstra地下水测量更新：新南威尔士州水务局，2013年11月》，生物区域评估衍生数据集。2019年3月12日查阅，http://data.bioregionalassessments.gov.au/dataset/d414c703-aabd-43af-81e0-30aab4d9dfb1。

## **数据集溯源**
* **衍生自** [《Hydstra地下水测量更新——新南威尔士州水务局，2013年11月》](https://data.gov.au/data/dataset/08b34518-c947-4665-82e5-c144b5b24e01)