SYD Soil - Average Clay Content Top 2m v01

## **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\nThis dataset is the average clay content of the top 2m of soil over the Sydney Basin. It is derived from the TERN digital soil mapping (http://www.tern.org.au/Soil-and-Landscape-Grid-of-Australia-pg17731.html).\n\n## **Purpose** \n\nThis dataset was created to estimate groundwater recharge in the alluvial areas of the Sydney Basin using the empirical method of Wohling et al (2012).\n\n\n\nWohling DL, Leaney FW and Crosbie RS (2012) Deep drainage estimates using multiple linear regression with percent clay content and rainfall. Hydrol. Earth Syst. Sci. 16(2), 563-572. DOI: 10.5194/hess-16-563-2012.\n\n## **Dataset History** \n\nThis is a depth-weighted average of the clay content from 6 soil layers in the TERN digital soil mapping (http://data.bioregionalassessments.gov.au/dataset/f8640540-4bb7-42ee-995a-219881e67705). \n\nIt has then been re-projected to MGA94 Zone 56 and re-sampled to a 500m raster.\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (XXXX) SYD Soil - Average Clay Content Top 2m v01. Bioregional Assessment Derived Dataset. Viewed 22 June 2018, http://data.bioregionalassessments.gov.au/dataset/95fc3145-5249-4bd4-bfd2-a812c39d68f9.\n\n## **Dataset Ancestors** \n\n* **Derived From** [Bioregional Assessment areas v02](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)\n\n* **Derived From** [Gippsland Project boundary](https://data.gov.au/data/dataset/27413de5-d13a-4231-ac79-fc77f4cbb5f7)\n\n* **Derived From** [Bioregional Assessment areas v04](https://data.gov.au/data/dataset/e8a2d577-c5c5-4e2c-b0fa-53e4b2d4a034)\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** [Bioregional Assessment areas v03](https://data.gov.au/data/dataset/96dbf469-5463-4f4d-8fad-4214c97e5aac)\n\n* **Derived From** [Bioregional Assessment areas v05](https://data.gov.au/data/dataset/25f89049-839d-4736-bd81-97d8e8a40f8e)\n\n* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)\n\n* **Derived From** [Soil and Landscape Grid National Soil Attribute Maps - Clay 3 resolution - Release 1](https://data.gov.au/data/dataset/f8640540-4bb7-42ee-995a-219881e67705)\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 v06](https://data.gov.au/data/dataset/54d7cc96-5129-450a-aef4-73197f9bc09d)\n\n* **Derived From** [Victoria - Seamless Geology 2014](https://data.gov.au/data/dataset/2872d02e-66cb-42b6-9e5a-63abc8ad871b)\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** [GEODATA TOPO 250K Series 3, File Geodatabase format (.gdb)](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)\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生成。本元数据声明中的“谱系”字段已列明所使用的全部源数据集，而生成该衍生数据集的具体流程则记载于本元数据声明的“历史”字段中。

本数据集为悉尼盆地地表0至2米土层的平均黏土含量，数据源自TERN数字土壤制图产品（http://www.tern.org.au/Soil-and-Landscape-Grid-of-Australia-pg17731.html）。

**目的**

本数据集旨在借助Wohling等人2012年提出的经验方法，估算悉尼盆地冲积区域的地下水补给量。

Wohling DL、Leaney FW及Crosbie RS（2012）：《利用黏土含量百分比与降雨量开展多元线性回归估算深层排水量》，《水文与地球系统科学（Hydrol. Earth Syst. Sci.）》，第16卷第2期，第563-572页。DOI: 10.5194/hess-16-563-2012。

**数据集历史**

本数据集通过对TERN数字土壤制图产品（http://data.bioregionalassessments.gov.au/dataset/f8640540-4bb7-42ee-995a-219881e67705）中的6个土层的黏土含量进行深度加权平均计算得到，随后被重投影至MGA94第56带坐标系，并重采样为500米分辨率的栅格数据。

**数据集引用**

生物区域评估计划（Bioregional Assessment Programme）（XXXX）：《SYD土壤——0至2米土层平均黏土含量 v01》，生物区域评估衍生数据集，2018年6月22日查阅，http://data.bioregionalassessments.gov.au/dataset/95fc3145-5249-4bd4-bfd2-a812c39d68f9。

**数据集溯源**

* **数据源自** [生物区域评估区域 v02](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)

* **数据源自** [吉普斯兰项目边界](https://data.gov.au/data/dataset/27413de5-d13a-4231-ac79-fc77f4cbb5f7)

* **数据源自** [生物区域评估区域 v04](https://data.gov.au/data/dataset/e8a2d577-c5c5-4e2c-b0fa-53e4b2d4a034)

* **数据源自** [2010年自然资源管理（NRM）区域](https://data.gov.au/data/dataset/1d54e38f-4051-4f0c-a350-c7dbd8eba65b)

* **数据源自** [生物区域评估区域 v03](https://data.gov.au/data/dataset/96dbf889-f726-4967-9964-714fb57d679b)

* **数据源自** [生物区域评估区域 v05](https://data.gov.au/data/dataset/25f89049-839d-4736-bd81-97d8e8a40f8e)

* **数据源自** [GEODATA TOPO 250K系列3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)

* **数据源自** [土壤与景观网格国家土壤属性图——黏土含量3分辨率版本1](https://data.gov.au/data/dataset/f8640540-4bb7-42ee-995a-219881e67705)

* **数据源自** [生物区域评估区域 v01](https://data.gov.au/data/dataset/0fd0d820-30b3-451f-a126-a50040426999)

* **数据源自** [生物区域评估区域 v06](https://data.gov.au/data/dataset/54d7cc96-5129-450a-aef4-73197f9bc09d)

* **数据源自** [2014年维多利亚州无缝地质数据](https://data.gov.au/data/dataset/2872d02e-66cb-42b6-9e5a-63abc8ad871b)

* **数据源自** [20130917年新南威尔士州流域管理局边界](https://data.gov.au/data/dataset/0dc4272e-c081-4ed4-9645-aa336ffacd85)

* **数据源自** [地质省全域数据](https://data.gov.au/data/dataset/0a064b3b-2a1e-4672-80d9-03333be67aad)

* **数据源自** [GEODATA TOPO 250K系列3 文件地理数据库格式（.gdb）](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)