Soil and Vegetation Parameters derived from different Envisat Products - Single-Look Complex and Precision Images
Ziolkowski, Dariusz; Dabrowska-Zielinska, Katarzyna; Malek, Iwona; Tomaszewska, Monika; Budzynska, Maria
Institute of Geodesy and Cartography, POLAND
Data gathered by various satellites as well as in situ measurements of soil-vegetation variables at the agriculture and wetlands test sites have been used. Microwave single-look complex images from Envisat satellite have been processed using interferometric techniques for assessment of various environmental parameters and their changes. The possibility to obtain water level changes in wetland ecosystem from early spring interferograms derived from data of HH and VV polarizations have been studied. The coherence images have been used to identify different vegetation types and to assess changes in soil and vegetation parameters.
Obtained results have been compared with the results of other project accepted by ESA (proposal ID 7389): "Application of remote sensing methods for the assessment of carbon balances for different biomasses and soil moistures within agriculture and wetland ecosystems" and PECS project No. 98101: "Study and implement remote sensing techniques for the assessment of carbon balances for different biomasses and soil moistures within various ecosystems". Soil and vegetation parameters derived from different Envisat products (single-look complex images and precision images) have been compared. The results have been validated using ground measurements. Also the new parameters derived from coherence images and interferograms have been implemented to study the carbon balance performed using various optical and microwave satellite data and in situ measurements.