Australian Soil Total Nitrogen Maps at Six Depths and 90-Meter Resolution

Version 2 of the Soil and Landscape Grid of Australia's modelled total soil nitrogen maps provides estimates across the continent at a 3 arc-second resolution. The product includes 24 raster maps covering six standard soil depths from 0-5 cm to 100-200 cm, each with upper and lower confidence limits and a measure of model extrapolation risk. Data collection spans approximately 1950 to 2021 and conforms to GlobalSoilMap specifications.

Use Cases

• Modeling soil fertility and nutrient cycling across Australian landscapes based on total nitrogen estimates.
• Assessing agricultural land potential and fertilizer requirements using depth-specific soil nitrogen data.
• Validating and calibrating broader environmental models with high-resolution, nationally consistent soil attribute maps.
• Evaluating model reliability for specific regions using the provided confidence limits and extrapolation risk assessment.

Strengths

• Provides data at a high spatial resolution of approximately 90 meters per pixel.
• Includes estimates for six standardized soil depths, enabling 3D analysis of nitrogen distribution.
• Contains 24 gridded maps per attribute, offering both primary estimates and confidence intervals.
• Covers a long temporal period, with data representing conditions from approximately 1950 to 2021.

Limitations

• Data is modelled and represents estimates, not direct measurements, which may introduce uncertainty.
• Column-level documentation is absent; field semantics must be inferred after download.
• Freshness should be verified as the last update timestamp is 2026-06-10.

Provenance

Source

Terrestrial Ecosystem Research Network's Data Discovery

Collection Method

Modelled estimates produced by the Soil and Landscape Grid of Australia.

Time Range

1950-2021 (approximately)

Freshness

Last updated 2026-06-10 19:50:06.317362

Geography

Australia