Australian Petroleum Blocks (2001) - Web Services

Australian Petroleum Blocks (2001) - Aligned with the historical Australian Maritime Boundary Dataset (AMB2001)

The digital realisation of Australia's Graticular Framework as set out under the Offshore Petroleum and Greenhouse Gas Storage Act 2006.

Web Service Capabilities WMS,WFS,WCS.
The dataset was created internally by Geoscience Australia using the framework described in Section 33 of the Offshore Petroleum and Greenhouse Gas Storage Act 2006 (OPGGS Act) and previous Acts.
The international, scheduled areas and coastal waters used in this dataset are those found in the current Australian Maritime Boundary Dataset (AMB2001).

The dataset is comprised of both polygons and points created to very high precision, accurate to within millimetres.

The blocks have been cut by Australia's international boundaries, the scheduled areas and the coastal waters. Each block is assigned a polygon, including partial blocks. All blocks are titled with their block ID, and a list of vertices that make up the blocks. Each vertex of the dataset is also replicated as a discrete point in the points dataset.

The design of the dataset allows for the exact location of every vertex to be know to millimetre precision. The corner coordinates of blocks are now defined to a high precision, and can be found by querying the appropriate point.
Existing production licences AC/P17, AC/RL4, and AC/RL5 are included in the dataset.
The blocks are attributed with fields containing information on:
Block ID
Parent 1 Million Mapsheet
Offshore Area
Epoch of the boundaries used to cut the data - AMB2001
Datum
Origin of the mapsheet in AGD66
The position of all vertices in the block
The number of vertices in the block
The area of the block in acres
The area of the block in hectares
The calculation used to find the area of the blocks is estimated to be precise to better than 1%. This is considered to be sufficient as under the permit and licensing arrangements in the OPGGS Act, the area of a block has no relevance. Therefore the area figure is provided solely for reference.

2001年版澳大利亚石油区块数据集——与历史版澳大利亚海事边界数据集（Australian Maritime Boundary Dataset，简称AMB2001）对齐。

本数据集为依据2006年《离岸石油与温室气体储存法》制定的澳大利亚格网框架数字化实现版本。

支持的Web服务包括WMS、WFS、WCS。

本数据集由澳大利亚地质科学局内部编制，采用2006年《离岸石油与温室气体储存法》（Offshore Petroleum and Greenhouse Gas Storage Act，简称OPGGS Act）第33条及此前相关法案所规定的框架开发。

本数据集所使用的国际海域、规划区块与近海水域，均取自现行的澳大利亚海事边界数据集（AMB2001）。

本数据集包含多边形与点要素两类数据，制作精度极高，误差控制在毫米级以内。

石油区块已按照澳大利亚国际海域边界、规划区块范围与近海水域进行裁切，所有区块（含部分区块）均对应一个多边形要素。每个区块均配有区块编号（Block ID）以及构成该区块的顶点坐标列表。数据集内的每个顶点同时以离散点要素的形式存储于点数据集当中。

本数据集的设计可确保每个顶点的坐标精度可达毫米级，位置信息精准无误。区块的角点坐标均已实现高精度定义，可通过查询对应点要素获取。

数据集包含现有的AC/P17、AC/RL4与AC/RL5号生产许可证对应的区块。

区块要素附带以下属性字段：
- 区块编号（Block ID）
- 父级百万分幅图幅（Parent 1 Million Mapsheet）
- 离岸海域（Offshore Area）
- 裁切数据所用边界的生成时代——AMB2001
- 大地基准面（Datum）
- 澳大利亚大地基准面1966（AGD66）坐标系下图幅原点
- 区块内所有顶点的坐标
- 区块的顶点数量
- 区块面积（英亩）
- 区块面积（公顷）

区块面积的计算精度预估优于1%。鉴于《离岸石油与温室气体储存法》中的许可与授权条款未对区块面积作出关联要求，该精度已满足需求，因此面积数值仅作参考使用。