Linear Seasonal Persistent Green Trend for Queensland and Northern Territory

A collection of the linear trend of seasonal persistent green vegetation cover, derived from Landsat data using a Queensland government algorithm. The analysis covers the period from 1987 to 2014 for Queensland and Northern Territory, Australia. The trend values represent the slope of a fitted line, originally in percentage points per year.

Use Cases

• Analyze the linear trend of seasonal persistent green cover to monitor long-term vegetation changes in Queensland and Northern Territory.
• Map areas of significant positive or negative green trend values to identify regions of vegetation gain or loss.
• Use the derived trend data, based on the minimum seasonal green component, to study the dynamics of perennial vegetation cover over the 1987-2014 period.
• Integrate the trend product with other geospatial layers for environmental impact assessments in Australia.

Strengths

• Provides a 28-year temporal coverage from 1987 to 2014 for longitudinal analysis.
• Derived from Landsat satellite imagery, offering consistent remote sensing data.
• Focuses on the persistent green component, which is designed to represent perennial vegetation.
• Covers the specific geographic regions of Queensland and Northern Territory, Australia.

Limitations

• The underlying data period ends in 2014, making the trend analysis potentially outdated for current conditions.
• The description notes values are truncated and scaled, which may limit precision for some quantitative analyses.
• Specific technical details on the algorithm's parameters and validation are not provided in the input.

Provenance

Source

Terrestrial Ecosystem Research Network's Data Discovery

Collection Method

Derived from analysis of seasonal persistent green product, which itself comes from Landsat-based seasonal fractional cover processed with a weighted smooth spline fitting routine.

Time Range

1987 to 2014

Freshness

The metadata was last updated in March 2026, but the core data covers up to 2014.

Geography

Queensland and Northern Territory, Australia