SatStat – Satellite derived Statistical data on forest-change area – project is being developed under the framework of the European Space Agency (ESA) Announce of Opportunities (AO) for Portugal. The goals of this AO are the promotion of Earth Observation (EO) data usage and the contribution to the development of applications for Global Monitoring of Environment and Security (GMES). SatStat acc...

RESUME The information content of ENVISAT ASAR alternating polarization data is evaluated with respect to operations at the Canadian Ice Service. A dual polarization data set covering an entire ice season is shown to have a higher information content compared to single polarization data. Automatic sea ice classification with dual polarization data is shown to have some potential to aid operatio...

This paper discusses causes of error in calculated tangent heights for IR limb sounders, with the work focussing on the MIPAS instrument on ENVISAT. Three causes of inaccuracy are investigated: 1) the refractive index of the atmosphere; 2) the ray tracing method; 3) the modelled atmosphere. The authors conclude that only the atmosphere used in the model has any significant effect on calculated ...

Helmand River Hydrologic Studies Using ALOS PALSAR InSAR and ENVISAT Altimetry Zhong Lu a; Jin-Woo Kim b; Hyongki Lee b; C. K. Shum b; Jianbin Duan b; Motomu Ibaraki b; Orhan Akyilmaz c; Chung-Hye Read d a U.S. Geological Survey, Vancouver, Washington, USA b School of Earth Sciences, The Ohio State University, Columbus, Ohio, USA c Department of Geodesy and Photogrammetry, Istanbul Technical Un...

This paper reports on the development of Neural Network algorithms for ozone concentration profiles retrieval from ESA-Envisat SCIAMACHY measurements. We present and discuss some preliminary results obtained by training our Nets with WOUDC/SHADOZ ozonesondes data; dataset preparation and matching of SCIAMACHY level 1b data with ozonesonde measurements is here analyzed. We also show the comparis...

Retrieval and validation of ozone columns derived from measurements of SCIAMACHY on Envisat H. J. Eskes, R. J. van der A, E. J. Brinksma, J. P. Veefkind, J. F. de Haan, and P. J. M. Valks Royal Netherlands Meteorological Institute, De Bilt, The Netherlands German Aerospace Center, Oberpfaffenhofen, Germany Received: 29 March 2005 – Accepted: 20 May 2005 – Published: 4 July 2005 Correspondence t...

Through the use of Envisat ASAR Alternating Polarization (AP) mode data, the Applied Science Section of the Canadian Ice Service (CIS) has been investigating the utility of multiple polarization SAR data for operational ice monitoring. This work will help CIS develop initial guidelines and recommendations for use of multiple polarization data in preparation for future SAR missions, RADARSAT-2, ...

A new microwave backscattering model for vegetated areas was developed. It enables the separation of the soil and vegetation contributions to the backscattering coefficient, which is crucial to obtain reliable simulation results for different imaging geometries. It is shown, that the vegetation influence on the signal can be directly derived from ENVISAT ASAR alternating polarization data. It i...

This paper presents an analysis of the performance of TerraSAR-X for subsidence monitoring in urban areas. The city of Murcia has been selected as a test-site due to its high deformation rate and the set of extensometers deployed along the city that provide validation data. The obtained results have been compared with those obtained from ERS/ENVISAT data belonging to the same period and validat...