CLM - Interpolated surfaces of Alluvium depth

## **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 files for creating interpolated surfaces of alluvium depth via ordinary kriging in R. Alluvium depth surfaces are generated for the Bremer, Clarence, Lockyer and Logan-Albert areas. The R scripts output pdf maps of the surfaces for each area.\n\n## **Dataset History** \n\nWithin R, alluvium depth data (see data lineage) was spatially categorised to Alluvial regions (Bremer, Lockyer, Clarence, Logan-Albert and Richmond). Elevation data from the digital elevation model (see data lineage) were appended to the data table. Ordinary kriging with elevation as a covariate to aid spatial prediction was used to spatially interpolate between observation points and create surfaces for each of the alluvial systems. Maps of the alluvium depth and standard error were output as pdf files by the R script.\n\n\n\nThe R script also output ascii grids for all of the grids displayed in the .pdf maps. These ascii files are:\n\n1. alluviumDepth_Bremer.asc (alluvium depth for the Bremer)\n\n2. alluviumDepth_SD_Bremer.asc (alluvium depth standard deviation for the Bremer)\n\n3. alluviumDepth_Clarence.asc (alluvium depth for the Clarence)\n\n4. alluviumDepth_SD_Clarence.asc (alluvium depth standard deviation for the Clarence)\n\n5. alluviumDepth_Lockyer.asc (alluvium depth for the Lockyer)\n\n6. alluviumDepth_SD_Lockyer.asc (alluvium depth standard deviation for the Lockyer)\n\n7. alluviumDepth_LoganAlbert.asc (alluvium depth for the LoganAlbert)\n\n8. alluviumDepth_SD_LoganAlbert.asc (alluvium depth standard deviation for the LoganAlbert)\n\n9. alluviumDepth_Richmond.asc (alluvium depth for the Richmond)\n\n10. alluviumDepth_SD_Richmond.asc (alluvium depth standard deviation for the Richmond)\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2014) CLM - Interpolated surfaces of Alluvium depth. Bioregional Assessment Derived Dataset. Viewed 28 September 2017, http://data.bioregionalassessments.gov.au/dataset/7867c5af-e2a0-43f7-ae09-30fb4d9a656a.\n\n## **Dataset Ancestors** \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** [Qld 100K mapsheets - Mount Lindsay](https://data.gov.au/data/dataset/3031172f-ec23-4c4d-835f-0772da8829ba)\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** [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** [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** [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** [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 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

## **摘要**
本数据集由生物区域评估计划（Bioregional Assessment Programme）基于多源数据集衍生而来，源数据集信息详见本元数据声明的谱系（Lineage）字段，该衍生数据集的生成流程详见本元数据声明的历史（History）字段。

本数据集包含用于在R语言环境中通过普通克里金法（ordinary kriging）生成冲积层厚度插值表面的文件，已针对布雷默（Bremer）、克拉伦斯（Clarence）、洛克耶（Lockyer）以及洛根-阿尔伯特（Logan-Albert）区域生成冲积层厚度表面，R脚本将为每个区域生成对应的表面PDF地图。

## **数据集历史**
在R语言环境中，冲积层厚度数据（详见数据集谱系）被空间分类至各冲积区域：布雷默、洛克耶、克拉伦斯、洛根-阿尔伯特以及里士满（Richmond）。将来自数字高程模型（digital elevation model, DEM）的高程数据追加至数据表中，采用以高程作为辅助空间预测协变量的普通克里金法，对观测点进行空间插值并为各冲积系统生成厚度表面。R脚本将冲积层厚度及标准误差的地图输出为PDF文件。

此外，R脚本还将PDF地图中展示的所有栅格导出为ASCII栅格文件，具体文件如下：
1. alluviumDepth_Bremer.asc：布雷默区域冲积层厚度数据
2. alluviumDepth_SD_Bremer.asc：布雷默区域冲积层厚度标准差数据
3. alluviumDepth_Clarence.asc：克拉伦斯区域冲积层厚度数据
4. alluviumDepth_SD_Clarence.asc：克拉伦斯区域冲积层厚度标准差数据
5. alluviumDepth_Lockyer.asc：洛克耶区域冲积层厚度数据
6. alluviumDepth_SD_Lockyer.asc：洛克耶区域冲积层厚度标准差数据
7. alluviumDepth_LoganAlbert.asc：洛根-阿尔伯特区域冲积层厚度数据
8. alluviumDepth_SD_LoganAlbert.asc：洛根-阿尔伯特区域冲积层厚度标准差数据
9. alluviumDepth_Richmond.asc：里士满区域冲积层厚度数据
10. alluviumDepth_SD_Richmond.asc：里士满区域冲积层厚度标准差数据

## **数据集引用**
生物区域评估计划（2014） CLM——冲积层厚度插值表面。生物区域评估衍生数据集。查阅时间：2017年9月28日，链接：http://data.bioregionalassessments.gov.au/dataset/7867c5af-e2a0-43f7-ae09-30fb4d9a656a。

## **数据集溯源**
* **源自** [昆士兰州10万比例尺地形图——沃里克（Warwick）](https://data.gov.au/data/dataset/3e2fa307-1f06-4873-96d3-5c3e5638894a)
* **源自** [昆士兰州10万比例尺地形图——赫利顿（Helidon）](https://data.gov.au/data/dataset/b3f4f1b5-a2fd-40fc-b35b-78b100a50dcb)
* **源自** [昆士兰州10万比例尺地形图——伊普斯维奇（Ipswich）](https://data.gov.au/data/dataset/71d610f7-084a-44c6-afa3-f0763396239b)
* **源自** [昆士兰州10万比例尺地形图——图文巴（Toowoomba）](https://data.gov.au/data/dataset/5b8bf9c4-d127-45c5-9fef-a71013331d86)
* **源自** [CLM——ASCII格式数字高程模型](https://data.gov.au/data/dataset/4e33c849-20ef-48f0-a522-22ac80d9cc73)
* **源自** [CLM——新南威尔士州与昆士兰州联合地质数据v02](https://data.gov.au/data/dataset/982bd271-5ce8-48cf-b3cf-c50550509baa)
* **源自** [昆士兰州10万比例尺地形图——林赛山（Mount Lindsay）](https://data.gov.au/data/dataset/3031172f-ec23-4c4d-835f-0772da8829ba)
* **源自** [昆士兰州10万比例尺地形图——金格罗伊（Kingaroy）](https://data.gov.au/data/dataset/01f58f60-9688-4b62-9de9-7e58aa0eeeb6)
* **源自** [CLM——布雷默河与沃里尔溪冲积系统范围](https://data.gov.au/data/dataset/21239a36-67ea-4535-92e4-6ad4e37e0108)
* **源自** [CLM——2014年5月6日里士满河冲积系统范围](https://data.gov.au/data/dataset/75029853-ab90-42c8-a6de-85ecf1671dda)
* **源自** [CLM——2015年2月3日里士满河冲积系统范围](https://data.gov.au/data/dataset/e8a94d1e-d0c4-4c66-87ec-59bc83ea5d82)
* **源自** [昆士兰州10万比例尺地形图——阿罗拉（Allora）](https://data.gov.au/data/dataset/46a276a3-fa56-4b1c-8aa4-0af90d28756b)
* **源自** [昆士兰州10万比例尺地形图——扬多瓦（Jandowae）](https://data.gov.au/data/dataset/0e11158d-8dbb-453b-9bf0-f79fa3fa1d89)
* **源自** [昆士兰州10万比例尺地形图——埃斯克（Esk）](https://data.gov.au/data/dataset/9e7334b7-fbb0-4893-bd08-ac296ce9a4fb)
* **源自** [CLM——洛根河与阿尔伯特河冲积系统范围](https://data.gov.au/data/dataset/c0047016-9e16-4803-ae21-a671582025f1)
* **源自** [CLM——昆士兰州地表地质地形图](https://data.gov.au/data/dataset/a040de87-21b1-4097-a273-41471405ab28)
* **源自** [克拉伦斯-莫顿顿SEEBASE与结构GIS项目数据](https://data.gov.au/data/dataset/b1690f8b-4025-45d2-96a0-6feb03ff3e52)
* **源自** [CLM——克拉伦斯-莫顿顿生物区域内新南威尔士州地表地质地形图](https://data.gov.au/data/dataset/a1f5c7b3-ea1f-4ef0-9d05-f54e81f4c7b6)
* **源自** [CLM——克拉伦斯河冲积系统范围](https://data.gov.au/data/dataset/46ec2295-19f2-48b7-bdbb-9347e6301c02)
* **源自** [昆士兰州10万比例尺地形图——比利（Beenleigh）](https://data.gov.au/data/dataset/f2eb7c75-52c5-4738-b7b7-76ec31b7f7ee)
* **源自** [昆士兰州10万比例尺地形图——卡布尔彻（Caboolture）](https://data.gov.au/data/dataset/cee55c9c-29f9-4733-aac9-9b82a2ff739f)
* **源自** [CLM——洛克耶溪冲积系统范围](https://data.gov.au/data/dataset/98160487-1dfe-41b5-9f8c-dc73795e2094)
* **源自** [昆士兰州10万比例尺地形图——默威尔姆巴（Murwillumbah）](https://data.gov.au/data/dataset/c9852e4a-1084-4fdb-a538-17b89736205d)
* **源自** [昆士兰州10万比例尺地形图——英格尔伍德（Inglewood）](https://data.gov.au/data/dataset/32869100-6b73-44a4-bcef-c58e380d0b7d)
* **源自** [昆士兰州10万比例尺地形图——奥基（Oakey）](https://data.gov.au/data/dataset/9b5ef250-c085-4365-b9c0-bb34e0b56150)
* **源自** [澳大利亚地球科学局，1秒分辨率SRTM数字高程模型（DEM）](https://data.gov.au/data/dataset/9a9284b6-eb45-4a13-97d0-91bf25f1187b)