1 Data Assimilation Research Centre, University of Reading, Reading, UK 2 Service Aeronomie, Universite Pierre et Marie Curie, Paris, France 3 ECMWF, Reading, UK 4 CNR-IFAC, Florence, Italy 5 University of Köln, Köln, Germany 6 BIRA-IASB, Brussels, Belgium 7 KNMI, De Bilt, The Netherlands 8 Met Office, Exeter, UK 9 Fusion Numerics, Boulder, Colorado, USA 10 CERFACS, Toulouse, France 11 Météo-Fr...

The combination of data obtained with different sensors (data fusion) is a powerful technique that can provide target products of the best quality in terms of precision and accuracy, as well as spatial and temporal coverage and resolution. In this paper the results are presented of the data fusion of measurements of ozone vertical profile performed by two space-borne interferometers (IASI on ME...

RESUME In 2003 a method for the solution of the integer phase ambiguity in InSAR data was proposed and demonstrated using laboratory data. The method uses the absolute phase and a rigorous radargrammetric model to derive the absolute 3-dimensional position of a target. This method appeared to show some capability for absolute, as opposed to relative, positioning and showed some benefits in appl...

When, in the night of 28th February to 1st March 2002, the Ariane 5 rocket with the European Enviromental Satellite Envisat on board lifted off from its launch pad at Kourou, the ESA-European Space Agency’s launching centre in French Guyana and after 23 minutes reached its sun-synchronous polar orbit at an altitude of 800km above the surface of the earth, many scientists and technicians at Aria...

Capabilities and methods for snow mapping in mountainous areas using the Advanced Synthetic Aperture Radar (ASAR) on board of ENVISAT were investigated. For algorithm development the backscattering signatures of snow covered and snow free surfaces in Alpine valleys and on mountain slopes were studied with ASAR data of different look angles and polarizations in comparison with field measurements...

Envisat MIPAS measurements of CFC-11: retrieval, validation, and climatology L. Hoffmann, M. Kaufmann, R. Spang, R. Müller, J. J. Remedios, D. P. Moore, C. M. Volk, T. von Clarmann, and M. Riese Forschungszentrum Jülich, Institut für Chemie und Dynamik der Geosphäre (ICG-1), Jülich, Germany EOS, Space Research Centre, Department of Physics and Astronomy, University of Leicester, Leicester, UK J...

In this contribution we report on ERS-ENVISAT Tandem (EET) cross-interferometry (CInSAR) results achieved over Egypt. Over the Nile Delta an EET pair with a perpendicular baseline of 1948m was used to generate a DEM. Thanks to the long perpendicular baseline EET CInSAR showed a good potential to generate accurate DEMs over this relatively flat landscape. The result achieved is compared with the...

We describe validation measurements of the geometric accuracy of ASAR images, measured redundantly via independent methods. Our tests include image (IM), alternating polarisation (AP), and wide swath (WS) mode acquisitions over a variety of test sites. ASAR's slant range products (IMS/APS) require a slightly different validation methodology than ground range precision (IMP, APP) and medium reso...