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2 October 2008 Dryland observation at local and regional scale: comparison of Landsat TM and NOAA AVHRR time series
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Abstract
The aim of this study was to evaluate the potentials and limits of remote sensing time series regarding change analysis of drylands. We focussed on the assessment and monitoring of land degradation using different scales of remote sensing data. Special interest was paid on how the spatial resolutions of different sensors influence the derivation of vegetation related variables, such as trends in time and the shift of phenological cycles. Hence, a comparison was performed using high and medium resolution sensors and their suitability for monitoring land degradation will be evaluated. Long time series of Landsat TM and NOAA AVHRR covering the overlapping time period from 1990 to 2000 were compared for a test area in the Mediterranean. At local scale additional information was delivered by a multi-seasonal land use/cover change detection (LUCC) analysis. The test site which is located in Central Macedonia (Greece) is mainly characterized by long-term, gradual processes mainly driven by grazing and the extension of irrigated arable land.
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M. Stellmes, T. Udelhoven, A. Röder, and J. Hill "Dryland observation at local and regional scale: comparison of Landsat TM and NOAA AVHRR time series", Proc. SPIE 7104, Remote Sensing for Agriculture, Ecosystems, and Hydrology X, 71040T (2 October 2008); https://doi.org/10.1117/12.800266
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