Title of article :
Broad-scale mapping of temporary wetlands in arid Australia
Author/Authors :
D. A. Roshier، نويسنده , , R. M. Rumbachs، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Pages :
15
From page :
249
To page :
263
Abstract :
We describe a robust methodology to detect and estimate the size of temporary wetlands using AVHRR satellite data within large areas (106 km2) 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 >120 ha, 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.
Keywords :
Temporary wetlands , Remote sensing , Matched filtering , Area estimation , AVHRR
Journal title :
Journal of Arid Environments
Serial Year :
2003
Journal title :
Journal of Arid Environments
Record number :
763269
Link To Document :
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