Cel The development of a method to map small deformations of theground down to the centimeter level, using differential SARinterferometry.A method to map small deformations is being developed, using SARimage triplets and interferograms. Four test sites have beenselected. The area of Bonn, the Phlegreians fields near Naples,St. Etienne de Tinee near Nice, Mount Etna in Sicily.ERS-1 SAR images will be processed in parallel, so that theperformance of different processor and different techniques ofinterferometry and differential interferometry can be evaluated.The corner reflectors will be fixed at selected positions andwill stay there for the whole period of the study. They will beorientated towards the ERS-1-look direction. They will be usedto estimate the amplitude of the effects, which in practice limitthe accuracy of the technique. These effects are the loss ofcoherence of the scatterers and the effects of meteorologicalconditions.All positions of point targets will be measured very precisely in3 dimensions as a function of time with geodetic accuracy makinguse of GPS receivers. In addition existing geodetic data,geophysical, geological and meteorological data will be collectedfor all studied site and digitized to allow direct comparisonwith SAR products.Finally the stability of the SAR system parameters will beanalyzed and the quality of the results achieved including thenegative ones as well, will be discussed.The products availaible in the end of the work will be: Allimages processed on the test sites during the work. Filmproducts associated with the images processed. Geometricdistorsion maps between images. Plots of the noise assessment inthe images. Coherence images. Small elevation changes mapsderived from interferograms and geodetic measurements. Program(-y) FP3-ENV 1C - Specific research and technological development programme (EEC) in the field of the environment, 1990-1994 Temat(-y) 040102 - Volcanic risk Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator Institut de Physique du Globe de Paris Wkład UE Brak danych Adres 4 place Jussieu 75252 Paris Francja Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (3) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko Centre National d'Etudes Spatiales (CNES) Francja Wkład UE Brak danych Adres 2 place Maurice Quentin 75001 Paris Zobacz na mapie Koszt całkowity Brak danych POLYTECHNIC OF MILAN Włochy Wkład UE Brak danych Adres Piazza Leonardo da Vinci 32 20133 MILANO Zobacz na mapie Linki Strona internetowa Opens in new window Koszt całkowity Brak danych Universität Stuttgart Niemcy Wkład UE Brak danych Adres Keplerstraße 11 70174 Stuttgart Zobacz na mapie Koszt całkowity Brak danych