Soil and Landscape Grid National Soil Attribute Maps - Clay (3" resolution) - Release 2

This is Version 2 of the Australian Soil Clay Content product of the Soil and Landscape Grid of Australia.

It supersedes the Release 1 product that can be found at https://doi.org/10.4225/08/546EEE35164BF.

The map gives a modelled estimate of the spatial distribution of clay in soils across Australia.

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: 0-5 cm, 5-15 cm, 15-30 cm, 30-60 cm, 60-100 cm and 100-200 cm. These depths are consistent with the specifications of the GlobalSoilMap.net project - GlobalSoilMaps.
The digital soil attribute maps are in raster format at a resolution of 3 arc sec (~90 x 90 m pixels).

Detailed information about the Soil and Landscape Grid of Australia can be found at - SLGA

Attribute Definition: 2 μm mass fraction of the less than 2 mm soil material determined using the pipette method;
Units: %;
Period (temporal coverage; approximately): 1950-2021;
Spatial resolution: 3 arc seconds (approx 90 m);
Total number of gridded maps for this attribute: 18;
Number of pixels with coverage per layer: 2007M (49200 * 40800);
Data license : Creative Commons Attribution 4.0 (CC BY);
Target data standard: GlobalSoilMap specifications;
Format: Cloud Optimised 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黏土含量产品第2版。
本版本替代了可在https://doi.org/10.4225/08/546EEE35164BF获取的第1版产品。
该地图提供了澳大利亚全域土壤黏土空间分布的建模估算结果。
澳大利亚土壤与景观网格已推出多款数字土壤属性产品，每款产品均包含6张数字土壤属性地图及其上下置信限，分别对应6个土壤深度层级：0-5 cm、5-15 cm、15-30 cm、30-60 cm、60-100 cm及100-200 cm。上述深度层级与GlobalSoilMap.net项目——GlobalSoilMaps的规范完全一致。
该数字土壤属性地图采用栅格格式，分辨率为3角秒（约90×90米像素）。
有关澳大利亚土壤与景观网格的详细信息可通过SLGA查询。
属性定义：采用吸管法（pipette method）测定的粒径小于2毫米的土壤物质中，粒径≤2μm颗粒的质量占比；单位：%；时间覆盖范围：约1950-2021年；空间分辨率：3角秒（约90米）；该属性的栅格地图总数量：18张；每层覆盖像素数：2007M（49200×40800）；数据许可协议：知识共享署名4.0（CC BY）；目标数据标准：GlobalSoilMap规范；数据格式：云优化GeoTIFF（Cloud Optimised GeoTIFF）。