CEOS Instrument: Active Microwave Instrumentation. Image Mode

Agency: ESA
Missions: ERS-1
Status:No longer operational
Type:Imaging radar (SAR)
Description:All-weather images of ocean, ice and land surfaces. Monitoring of coastal zones, polar ice, sea state, geological features, vegetation (including forests), land surface processes, hydrology.
Spatial Resolution: 30 m
Swath Width: 100 km
Wavebands: Microwave: 5.3 GHz, C band, VV polarisation, bandwidth 15.5 ? 0.06 MHz
Technology: Imaging radar (SAR)
Description: If radar is used, the problem of diffraction-limited resolution in MW still applies. In this case, however, by analysing range, azimuth and Doppler effect of the (coherent) signals, synthetic aperture can be implemented, and resolutions typically of 10-30 m can be achieved. Several combinations of polarisations in transmission and reception can be implemented. Resolution can be traded-off with swath (e.g. 30 m / 100 km or 150 m / 400 km). Interferometry between views from different passes enable appreciating changes. SAR exploiting different bands (L, S, C, X) emphasise different features. Applicable only in LEO.

Measurement List:

(select measurement name to view details)

CEOS Systems Engineering Office (SEO)

CEOS Data Base Version: 17 - Created: 2012-01-18