• Comparison of available altimetry products for hydrodynamic model calibration. Investigation the potential multi-mission series calibrating hydraulic model. Impact single- and length (n° observations) on calibration reliability. Results show improvement satellite performances over time. Multi-mission outperform short original low-frequency altimetric products. Satellite is increasingly consid...

We use the L-band Advanced Land Observing Satellite (ALOS) and C-band Envisat interferometric synthetic aperture data and campaign GPS observations to study the postseismic deformation due to the 2005 magnitude 7.6 Kashmir (Pakistan) earthquake that occurred in the northwestern Himalaya. Envisat data are available from both the descending and ascending orbits and span a time period of~4.5 years...

A study of polar ozone depletion based on sequential assimilation of satellite data from the ENVISAT/MIPAS and Odin/SMR instruments J. D. Rösevall, D. P. Murtagh, J. Urban, and A. K. Jones Department of Radio & Space Science, Chalmers Univ. of Technology, Göteborg, Sweden Received: 3 July 2006 – Accepted: 9 October 2006 – Published: 10 October 2006 Correspondence to: J. D. Rösevall (rosevall@rs...

Gyroscopes are instruments capable of sensing changes in their inertial orientation. A gyroscope has one or more sensitive axis and can measure a rotation around them. They are usually mechanical devices that employ a rapid spinning mass to detect the inertial variations. Satellites usually have gyroscopes in the Attitude and Orbit Control System as attitude (orientation) sensors that measure a...

Digital elevation models (DEMs) of a coastal area in a time series are very useful to monitor annual and seasonal coastal morphologic changes. Topographic features in coastal regions change significantly within a relatively short period compared with landmass. However, it is difficult to obtain coherent interferometric SAR pairs over coastal areas. ERS-ENVISAT 30-minute tandem pair is useful to...