TERN National Digital Soil Property Maps - Total Nitrogen (3" resolution)

This is the soil Total Nitrogen product of the TERN Soil and Landscape Grid of Australia Facility. The TERN Soil Facility 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 (http://www.globalsoilmap.net/). The digital soil attribute maps are in raster format at a resolution of 3 arc sec (~90 x 90 m pixels).

Attribute Definition: Total nitrogen;
Units: %;
Spatial prediction method: Decision trees with piecewise linear models with kriging of residuals;
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 3.0 (CC By);
Variance explained (cross-validation): 0.4%;
Target data standard: GlobalSoilMap specifications;
Format: GeoTIFF.