Broad-scale mapping of temporary wetlands in arid Australia

Broad-scale mapping of temporary wetlands in arid Australia Journal Article

Journal of Arid Environments

  • Author(s): Roshier, D. A., Rumbachs, R. M.
  • Published: 2004
  • Volume: 56
  • ISBN: 0140-1963

Abstract: We describe a robust methodology to detect and estimate the size of temporary wetlands using AVHRR satellite data within large areas (106km2) of the arid zone. The methodology uses spectral matching and exclusion of salt surfaces to discriminate between water and non-water surfaces. The status of 115 lakes was used to evaluate the methodology. A classification accuracy of 98% was achieved for wetlands >120ha, with accuracy of area estimates varying with the size and shape of individual lakes. Spectral matching of AVHRR data has methodological and cost advantages over the use of higher spatial resolution data for understanding changes in the distribution of water at broad scales.

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Suggested Citation
Roshier, D. A., Rumbachs, R. M., 2004, Broad-scale mapping of temporary wetlands in arid Australia, Volume:56, Journal Article, viewed 15 June 2024, https://www.nintione.com.au/?p=13026.

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