Soil and Landscape Grid National Soil Attribute Maps - Total Phosphorus (3" resolution) - Release 1

This is Version 1 of the Australian Soil Total Phosphorus product of the Soil and Landscape Grid of Australia. It is superseded by the Release 2 product that can be found at: Soil and Landscape Grid National Soil Attribute Maps - Total Phosphorus (3" resolution) - Release 2.
The Soil and Landscape Grid of Australia has produced a range of digital soil attribute products. Each product contains six digital soil attribute maps, and their upper and lower confidence limits, representing the soil attribute at six depths: 0-5cm, 5-15cm, 15-30cm, 30-60cm, 60-100cm and 100-200cm. These depths are consistent with the specifications of the GlobalSoilMap.net project (https://isric.org/projects/globalsoilmapnet/). The digital soil attribute maps are in raster format at a resolution of 3 arc sec (~90 x 90 m pixels). These maps are generated by combining the best available Digital Soil Mapping (DSM) products available across Australia. Attribute Definition: Total phosphorus; Units: %; Period (temporal coverage; approximately): 1950-2013; Spatial resolution: 3 arc seconds (approx 90m); Total number of gridded maps for this attribute: 18; Number of pixels with coverage per layer: 2007M (49200 * 40800); Total size before compression: about 8GB; Total size after compression: about 4GB; Data license : Creative Commons Attribution 4.0 (CC BY); Target data standard: GlobalSoilMap specifications; Format: GeoTIFF.

本数据集为澳大利亚土壤与景观网格（Soil and Landscape Grid of Australia）发布的澳大利亚土壤全磷产品V1版本，其已被可通过以下路径获取的第二版产品替代：澳大利亚土壤与景观网格国家土壤属性地图——全磷（3弧秒分辨率）——第二版。
澳大利亚土壤与景观网格已推出一系列数字化土壤属性产品。每款产品均包含六张数字化土壤属性地图及其上下置信限，分别对应六个深度层级的土壤属性：0-5cm、5-15cm、15-30cm、30-60cm、60-100cm及100-200cm。该深度层级标准与GlobalSoilMap.net项目（https://isric.org/projects/globalsoilmapnet/）的规范保持一致。
本数字化土壤属性地图采用栅格（raster）格式，分辨率为3弧秒（约90×90米像素）。此类地图通过整合澳大利亚境内可获取的最优数字化土壤制图（Digital Soil Mapping, DSM）产品生成。
属性定义：全磷；单位：%；时间覆盖范围（近似）：1950-2013年；空间分辨率：3弧秒（约90米）；该属性的栅格地图总数量：18张；单图层有效像素数：2007M（49200×40800）；压缩前总容量：约8GB；压缩后总容量：约4GB；数据许可协议：知识共享署名4.0（Creative Commons Attribution 4.0, CC BY）；目标数据标准：GlobalSoilMap规范；数据格式：GeoTIFF。