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Persistent Green Vegetation

Last modified by Mariela Soto-Berelov on 2015/04/17 13:45

Persistent Green Vegetation Fraction

1Tony Gill, 2Kasper Johansen, 3Peter Scarth, 3John Armston, 3Rebecca Trevithick, 3Neil Flood

1Science Division, NSW Office of Environment and Heritage/ Joint Remote Sensing Research Program, Department of Premier and Cabinet, Building 3, 209 Cobra St Dubbo 2830

2Biophysical Remote Sensing Group/ Joint Remote Sensing Research Program, Centre for Spatial Environmental Research, School of Geography, Planning and Environmental Management, The University of Queensland, St Lucia, QLD 4072

3Remote Sensing Centre/ Joint Remote Sensing Research Program, Department of Science, Information Technology, Innovation and the Arts (DSITIA), Queensland Government, Ecosciences Precinct, 41 Boggo Road, Brisbane, QLD 4102

* tony.gill@environment.nsw.gov.au

Abstract

The Landsat based Persistent Green Vegetation Fraction product was produced using a time-series of annual images covering the whole of Australia between 2000 and 2010. Persistent Green Vegetation is nominally woody vegetation. The production of the map included initial image pre-processing and masking before a time-series of images of green, non-green and bare ground fractions were produced. The green fraction was further divided into persistent and non-persistent green vegetation to derive the fraction of persistent green vegetation persisting between 2000 and 2010 in Australia. Initial comparison of Landsat Persistent Green Vegetation Fractions with airborne LiDAR derived woody foliage projective cover fractions showed differences that were vegetation type specific (RMSE 0.131±0.076). It is anticipated that the Persistent Green Vegetation Fraction product will support the evaluation of management activities and various vegetation structure and land cover change mapping applications.

Key Points

• The Persistent Green Vegetation Fraction product is a consistently processed and validated Landsat based map of vegetation appearing persistently green (i.e. mainly woody vegetation) over an 11 year period between 2000 and 2010;

• The Persistent Green Vegetation Fraction product is the first Australia-wide map (nominally) showing the fraction and extent of woody vegetation at the Landsat scale; and

• The Persistent Green Vegetation Fraction product may support management activities, vegetation structure assessment, carbon applications, landscape ecology research and land cover mapping applications in various environments across Australia.

Link to rest of chapter

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Created by Mariela Soto-Berelov on 2013/04/24 11:21

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