CLM - Interpolated piezometric surfaces for Alluvium

## **Abstract** \n\nThe dataset was derived by the Bioregional Assessment Programme from multiple source datasets. The source datasets are 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\nContains the files and R scripts used for creating interpolated surfaces of depth to groundwater and contour maps of piezometric surfaces for dry (200 - 2007) and wet (2008 - 2012) periods in the Bremer, Clarence Lockyer, Logan-Albert and Richmond alluvial systems. Piezometric surfaces and depth to groundwater surfaces are created using ordinary kriging in R. The data used come from the bores in the QLD and NSW groundwater databases (see data lineage).\n\n## **Dataset History** \n\nGroundwater hydraulic head data from the NSW and QLD databases (see data lineage) was extracted by selecting only those data collected between 2000 and 2012 and that fell within the boundary shapefiles for the alluvial bodies. Elevation data from the DEM was appended to the spatial locations for each groundwater bore in the dataset. Ordinary kriging was then performed in R to create interpolated surfaces for depth to groundwater and piezometric surfaces. The kriging makes use of the digital elevation model as a covariate for aiding prediction. The R scripts output pdf maps of the surfaces for each of the following alluvial systems: Bremer, Clarence, Lockyer, Logan-Albert and Richmond. Maps are produced for for the dry period (2000 - 2007) and wet period (2008 - 2012) and show the predicted surface in addition to the prediction standard deviation.\n\n\n\nThe R script also outputs the rasters used to create these maps to .asc files (ascii grids). There are four such ascii grids for the entire alluvium: \n\n1. PiezometricSurface_Dry.asc (the estimated piezometric surface for all of the alluvium in the dry years which has been clipped to shapefiles to produce each of the .pdf maps)\n\n2. PiezometricSurface_SD_Dry.asc (the estimated standard deviation of the piezometric surface for all of the alluvium in the dry years which has been clipped to shapefiles to produce each of the .pdf maps)\n\n3. PiezometricSurface_Wet.asc (the estimated piezometric surface for all of the alluvium in the wet years which has been clipped to shapefiles to produce each of the .pdf maps)\n\n4. PiezometricSurface_SD_Wet.asc (the estimated standard deviation of the piezometric surface for all of the alluvium in the wet years which has been clipped to shapefiles to produce each of the .pdf maps)\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2014) CLM - Interpolated piezometric surfaces for Alluvium. Bioregional Assessment Derived Dataset. Viewed 28 September 2017, http://data.bioregionalassessments.gov.au/dataset/da04bc6a-b2ad-427f-a434-643ad6006ea0.\n\n## **Dataset Ancestors** \n\n* **Derived From** [CLM - Bore water level QLD](https://data.gov.au/data/dataset/20c5f443-bd19-4d2b-9f96-6633244c64e5)\n\n* **Derived From** [Qld 100k mapsheets - Warwick](https://data.gov.au/data/dataset/3e2fa307-1f06-4873-96d3-5c3e5638894a)\n\n* **Derived From** [Qld 100K mapsheets - Helidon](https://data.gov.au/data/dataset/b3f4f1b5-a2fd-40fc-b35b-78b100a50dcb)\n\n* **Derived From** [Qld 100K mapsheets - Ipswich](https://data.gov.au/data/dataset/71d610f7-084a-44c6-afa3-f0763396239b)\n\n* **Derived From** [Qld 100K mapsheets - Toowoomba](https://data.gov.au/data/dataset/5b8bf9c4-d127-45c5-9fef-a71013331d86)\n\n* **Derived From** [CLM - DEM in ascii format](https://data.gov.au/data/dataset/4e33c849-20ef-48f0-a522-22ac80d9cc73)\n\n* **Derived From** [CLM - Geology NSW & Qld combined v02](https://data.gov.au/data/dataset/982bd271-5ce8-48cf-b3cf-c50550509baa)\n\n* **Derived From** [Natural Resource Management (NRM) Regions 2010](https://data.gov.au/data/dataset/1d54e38f-4051-4f0c-a350-c7dbd8eba65b)\n\n* **Derived From** [Qld 100k mapsheets - Kingaroy](https://data.gov.au/data/dataset/01f58f60-9688-4b62-9de9-7e58aa0eeeb6)\n\n* **Derived From** [CLM - Extent of Bremer river and Warrill creek alluvial systems](https://data.gov.au/data/dataset/21239a36-67ea-4535-92e4-6ad4e37e0108)\n\n* **Derived From** [CLM - Extent of Richmond river alluvial system May 6th 2014](https://data.gov.au/data/dataset/75029853-ab90-42c8-a6de-85ecf1671dda)\n\n* **Derived From** [GEODATA TOPO 250K Series 3, File Geodatabase format (.gdb)](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)\n\n* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)\n\n* **Derived From** [NSW Catchment Management Authority Boundaries 20130917](https://data.gov.au/data/dataset/0dc4272e-c081-4ed4-9645-aa336ffacd85)\n\n* **Derived From** [Geological Provinces - Full Extent](https://data.gov.au/data/dataset/0a064b3b-2a1e-4672-80d9-03333be67aad)\n\n* **Derived From** [CLM - Extent of Richmond river alluvial system February 3rd 2015](https://data.gov.au/data/dataset/e8a94d1e-d0c4-4c66-87ec-59bc83ea5d82)\n\n* **Derived From** [Qld 100K mapsheets - Allora](https://data.gov.au/data/dataset/46a276a3-fa56-4b1c-8aa4-0af90d28756b)\n\n* **Derived From** [Qld 100K mapsheets - Jandowae](https://data.gov.au/data/dataset/0e11158d-8dbb-453b-9bf0-f79fa3fa1d89)\n\n* **Derived From** [Bioregional Assessment areas v03](https://data.gov.au/data/dataset/96dbf469-5463-4f4d-8fad-4214c97e5aac)\n\n* **Derived From** [Qld 100K mapsheets - Esk](https://data.gov.au/data/dataset/9e7334b7-fbb0-4893-bd08-ac296ce9a4fb)\n\n* **Derived From** [CLM - Extent of Logan and Albert river alluvial systems](https://data.gov.au/data/dataset/c0047016-9e16-4803-ae21-a671582025f1)\n\n* **Derived From** [Qld 100K mapsheets - Mount Lindsay](https://data.gov.au/data/dataset/3031172f-ec23-4c4d-835f-0772da8829ba)\n\n* **Derived From** [CLM - Qld Surface Geology Mapsheets](https://data.gov.au/data/dataset/a040de87-21b1-4097-a273-41471405ab28)\n\n* **Derived From** [Clarence-Moreton SEEBASE & Structural GIS Project data.](https://data.gov.au/data/dataset/b1690f8b-4025-45d2-96a0-6feb03ff3e52)\n\n* **Derived From** [CLM - NSW Surface Geology Mapsheets in the Clarence-Moreton bioregion](https://data.gov.au/data/dataset/a1f5c7b3-ea1f-4ef0-9d05-f54e81f4c7b6)\n\n* **Derived From** [CLM - Extent of Clarence River alluvial systems](https://data.gov.au/data/dataset/46ec2295-19f2-48b7-bdbb-9347e6301c02)\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* **Derived From** [Qld 100k mapsheets - Beenleigh](https://data.gov.au/data/dataset/f2eb7c75-52c5-4738-b7b7-76ec31b7f7ee)\n\n* **Derived From** [Qld 100K mapsheets - Caboolture](https://data.gov.au/data/dataset/cee55c9c-29f9-4733-aac9-9b82a2ff739f)\n\n* **Derived From** [CLM - Extent of Lockyer Creek alluvial system](https://data.gov.au/data/dataset/98160487-1dfe-41b5-9f8c-dc73795e2094)\n\n* **Derived From** [Qld 100k mapsheets - Murwillumbah](https://data.gov.au/data/dataset/c9852e4a-1084-4fdb-a538-17b89736205d)\n\n* **Derived From** [QLD Department of Natural Resources and Mines Groundwater Database Extract 20142808](https://data.gov.au/data/dataset/a5c5cbdb-1152-43f7-9533-a123027b7ce1)\n\n* **Derived From** [Bioregional Assessment areas v01](https://data.gov.au/data/dataset/0fd0d820-30b3-451f-a126-a50040426999)\n\n* **Derived From** [Bioregional Assessment areas v02](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)\n\n* **Derived From** [Qld 100K mapsheets - Inglewood](https://data.gov.au/data/dataset/32869100-6b73-44a4-bcef-c58e380d0b7d)\n\n* **Derived From** [Qld 100K mapsheets - Oakey](https://data.gov.au/data/dataset/9b5ef250-c085-4365-b9c0-bb34e0b56150)\n\n* **Derived From** [Geoscience Australia, 1 second SRTM Digital Elevation Model (DEM)](https://data.gov.au/data/dataset/9a9284b6-eb45-4a13-97d0-91bf25f1187b)\n\n* **Derived From** [CLM - Bore water level NSW](https://data.gov.au/data/dataset/d20a15c4-b4ea-45a4-97e3-6ed83373ba97)\n\n

## **摘要**
本数据集由生物区域评估计划（Bioregional Assessment Programme）从多源数据集衍生得到。源数据集的相关信息已在本元数据声明的“谱系（Lineage）”字段中注明，该衍生数据集的生成流程已在本元数据声明的“历史（History）”字段中详述。

本数据集包含用于生成布雷默（Bremer）、克拉伦斯-洛克耶（Clarence Lockyer）、洛根-阿尔伯特（Logan-Albert）以及里士满（Richmond）冲积系统枯水期（2000-2007年）与丰水期（2008-2012年）的地下水埋深插值面及测压水位面（piezometric surface）等值线图所需的文件与R脚本。其中，测压水位面与地下水埋深插值面通过R语言中的普通克里金法（ordinary kriging）生成，所用数据取自昆士兰州（Queensland, QLD）与新南威尔士州（New South Wales, NSW）地下水数据库中的钻孔监测数据（详见数据谱系）。

## **数据集历史**
研究人员从昆士兰州与新南威尔士州的数据库中提取地下水水头数据（详见数据谱系），筛选出2000年至2012年间采集且位于各冲积体边界矢量文件范围内的数据。随后，将数字高程模型（DEM）的高程数据追加至数据集中每个地下水钻孔的空间位置属性中。接着在R语言中执行普通克里金法，以数字高程模型作为协变量辅助预测，生成地下水埋深插值面与测压水位面。

本数据集的R脚本将为以下5个冲积系统分别生成对应的曲面PDF地图：布雷默、克拉伦斯、洛克耶、洛根-阿尔伯特与里士满。地图将分别覆盖枯水期（2000-2007年）与丰水期（2008-2012年），并同时展示预测曲面与预测标准差。

此外，R脚本还将生成用于绘制这些地图的栅格数据，并保存为.asc格式的ASCII网格文件。针对整个冲积区域，共生成4个此类ASCII网格文件：
1. PiezometricSurface_Dry.asc：枯水期全冲积区域的估算测压水位面（已通过矢量文件裁剪以生成各PDF地图）
2. PiezometricSurface_SD_Dry.asc：枯水期全冲积区域测压水位面的估算标准差（已通过矢量文件裁剪以生成各PDF地图）
3. PiezometricSurface_Wet.asc：丰水期全冲积区域的估算测压水位面（已通过矢量文件裁剪以生成各PDF地图）
4. PiezometricSurface_SD_Wet.asc：丰水期全冲积区域测压水位面的估算标准差（已通过矢量文件裁剪以生成各PDF地图）

## **数据集引用**
生物区域评估计划（2014）CLM - 冲积层插值测压水位面。生物区域评估衍生数据集。查阅日期：2017年9月28日，http://data.bioregionalassessments.gov.au/dataset/da04bc6a-b2ad-427f-a434-643ad6006ea0.

## **数据集溯源**
* **衍生自** [CLM - 昆士兰州钻孔水位数据（CLM - Bore water level QLD）](https://data.gov.au/data/dataset/20c5f443-bd19-4d2b-9f96-6633244c64e5)
* **衍生自** [昆士兰州1:10万地形图幅-沃里克（Qld 100k mapsheets - Warwick）](https://data.gov.au/data/dataset/3e2fa307-1f06-4873-96d3-5c3e5638894a)
* **衍生自** [昆士兰州1:10万地形图幅-赫利顿（Qld 100K mapsheets - Helidon）](https://data.gov.au/data/dataset/b3f4f1b5-a2fd-40fc-b35b-78b100a50dcb)
* **衍生自** [昆士兰州1:10万地形图幅-伊普斯维奇（Qld 100K mapsheets - Ipswich）](https://data.gov.au/data/dataset/71d610f7-084a-44c6-afa3-f0763396239b)
* **衍生自** [昆士兰州1:10万地形图幅-图翁巴（Qld 100K mapsheets - Toowoomba）](https://data.gov.au/data/dataset/5b8bf9c4-d127-45c5-9fef-a71013331d86)
* **衍生自** [CLM - ASCII格式数字高程模型（CLM - DEM in ascii format）](https://data.gov.au/data/dataset/4e33c849-20ef-48f0-a522-22ac80d9cc73)
* **衍生自** [CLM - 新南威尔士州与昆士兰州联合地质图v02（CLM - Geology NSW & Qld combined v02）](https://data.gov.au/data/dataset/982bd271-5ce8-48cf-b3cf-c50550509baa)
* **衍生自** [2010年自然资源管理（NRM）区域范围（Natural Resource Management (NRM) Regions 2010）](https://data.gov.au/data/dataset/1d54e38f-4051-4f0c-a350-c7dbd8eba65b)
* **衍生自** [昆士兰州1:10万地形图幅-金格罗伊（Qld 100k mapsheets - Kingaroy）](https://data.gov.au/data/dataset/01f58f60-9688-4b62-9de9-7e58aa0eeeb6)
* **衍生自** [CLM - 布雷默河与沃里尔溪冲积系统范围（CLM - Extent of Bremer river and Warrill creek alluvial systems）](https://data.gov.au/data/dataset/21239a36-67ea-4535-92e4-6ad4e37e0108)
* **衍生自** [CLM - 2014年5月6日里士满河冲积系统范围（CLM - Extent of Richmond river alluvial system May 6th 2014）](https://data.gov.au/data/dataset/75029853-ab90-42c8-a6de-85ecf1671dda)
* **衍生自** [GEODATA 25万地形系列3，文件地理数据库格式（.gdb）（GEODATA TOPO 250K Series 3, File Geodatabase format (.gdb)）](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)
* **衍生自** [GEODATA 25万地形系列3（GEODATA TOPO 250K Series 3）](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)
* **衍生自** [20130917新南威尔士州流域管理局边界（NSW Catchment Management Authority Boundaries 20130917）](https://data.gov.au/data/dataset/0dc4272e-c081-4ed4-9645-aa336ffacd85)
* **衍生自** [地质省全范围（Geological Provinces - Full Extent）](https://data.gov.au/data/dataset/0a064b3b-2a1e-4672-80d9-03333be67aad)
* **衍生自** [CLM - 2015年2月3日里士满河冲积系统范围（CLM - Extent of Richmond river alluvial system February 3rd 2015）](https://data.gov.au/data/dataset/e8a94d1e-d0c4-4c66-87ec-59bc83ea5d82)
* **衍生自** [昆士兰州1:10万地形图幅-阿洛拉（Qld 100K mapsheets - Allora）](https://data.gov.au/data/dataset/46a276a3-fa56-4b1c-8aa4-0af90d28756b)
* **衍生自** [昆士兰州1:10万地形图幅-扬多维（Qld 100K mapsheets - Jandowae）](https://data.gov.au/data/dataset/0e11158d-8dbb-453b-9bf0-f79fa3fa1d89)
* **衍生自** [生物区域评估区域v03（Bioregional Assessment areas v03）](https://data.gov.au/data/dataset/96dbf469-5463-4f4d-8fad-4214c97e5aac)
* **衍生自** [昆士兰州1:10万地形图幅-埃斯克（Qld 100K mapsheets - Esk）](https://data.gov.au/data/dataset/9e7334b7-fbb0-4893-bd08-ac296ce9a4fb)
* **衍生自** [CLM - 洛根河与阿尔伯特河冲积系统范围（CLM - Extent of Logan and Albert river alluvial systems）](https://data.gov.au/data/dataset/c0047016-9e16-4803-ae21-a671582025f1)
* **衍生自** [昆士兰州1:10万地形图幅-林赛山（Qld 100K mapsheets - Mount Lindsay）](https://data.gov.au/data/dataset/3031172f-ec23-4c4d-835f-0772da8829ba)
* **衍生自** [CLM - 昆士兰州地表地质地形图幅（CLM - Qld Surface Geology Mapsheets）](https://data.gov.au/data/dataset/a040de87-21b1-4097-a273-41471405ab28)
* **衍生自** [克拉伦斯-莫顿SEEBASE与结构GIS项目数据（Clarence-Moreton SEEBASE & Structural GIS Project data.）](https://data.gov.au/data/dataset/b1690f8b-4025-45d2-96a0-6feb03ff3e52)
* **衍生自** [CLM - 克拉伦斯-莫顿生物区域内新南威尔士州地表地质地形图幅（CLM - NSW Surface Geology Mapsheets in the Clarence-Moreton bioregion）](https://data.gov.au/data/dataset/a1f5c7b3-ea1f-4ef0-9d05-f54e81f4c7b6)
* **衍生自** [CLM - 克拉伦斯河冲积系统范围（CLM - Extent of Clarence River alluvial systems）](https://data.gov.au/data/dataset/46ec2295-19f2-48b7-bdbb-9347e6301c02)
* **衍生自** [Hydstra地下水测量更新-新南威尔士州水资源办公室，2013年11月（Hydstra Groundwater Measurement Update - NSW Office of Water, Nov2013）](https://data.gov.au/data/dataset/08b34518-c947-4665-82e5-c144b5b24e01)
* **衍生自** [昆士兰州1:10万地形图幅-比利利（Qld 100k mapsheets - Beenleigh）](https://data.gov.au/data/dataset/f2eb7c75-52c5-4738-b7b7-76ec31b7f7ee)
* **衍生自** [昆士兰州1:10万地形图幅-卡布尔彻（Qld 100K mapsheets - Caboolture）](https://data.gov.au/data/dataset/cee55c9c-29f9-4733-aac9-9b82a2ff739f)
* **衍生自** [CLM - 洛克耶溪冲积系统范围（CLM - Extent of Lockyer Creek alluvial system）](https://data.gov.au/data/dataset/98160487-1dfe-41b5-9f8c-dc73795e2094)
* **衍生自** [昆士兰州1:10万地形图幅-穆里卢姆巴（Qld 100k mapsheets - Murwillumbah）](https://data.gov.au/data/dataset/c9852e4a-1084-4fdb-a538-17b89736205d)
* **衍生自** [昆士兰州自然资源与矿产部20142808地下水数据库提取件（QLD Department of Natural Resources and Mines Groundwater Database Extract 20142808）](https://data.gov.au/data/dataset/a5c5cbdb-1152-43f7-9533-a123027b7ce1)
* **衍生自** [生物区域评估区域v01（Bioregional Assessment areas v01）](https://data.gov.au/data/dataset/0fd0d820-30b3-451f-a126-a50040426999)
* **衍生自** [生物区域评估区域v02（Bioregional Assessment areas v02）](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)
* **衍生自** [昆士兰州1:10万地形图幅-因格尔伍德（Qld 100K mapsheets - Inglewood）](https://data.gov.au/data/dataset/32869100-6b73-44a4-bcef-c58e380d0b7d)
* **衍生自** [昆士兰州1:10万地形图幅-奥基（Qld 100K mapsheets - Oakey）](https://data.gov.au/data/dataset/9b5ef250-c085-4365-b9c0-bb34e0b56150)
* **衍生自** [澳大利亚地球科学局1秒SRTM数字高程模型（DEM）（Geoscience Australia, 1 second SRTM Digital Elevation Model (DEM)）](https://data.gov.au/data/dataset/9a9284b6-eb45-4a13-97d0-91bf25f1187b)
* **衍生自** [CLM - 新南威尔士州钻孔水位数据（CLM - Bore water level NSW）](https://data.gov.au/data/dataset/d20a15c4-b4ea-45a4-97e3-6ed83373ba97)