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| The colour composite of a Radarsat-2 polarimetric radar image acquired over the Flevoland test site in the Netherlands on 4 April 2009. The different colours reflect the type and condition of the land cover. Field boundaries are clearly visible in this area, which is mostly agricultural. The dark areas correspond to water surrounding this area of reclaimed land, the very bright areas to urban settlements and the pink/blue area to middle-left is a nature reserve.
Credits: MDA Geospatial Services | |  |  | |
| | | | | The Sodankylä test site in Finland in late winter.
Credits: ESA | | | | |
| | | | | Land surface-temperature, canopy reflectance, leaf-level spectral reflectance, transmittance and angular spectro-radiometric measurements are performed for space/airborne imagery validation.
Credits: Brockmann Consult | | | | |
| | | | | A large tropical tree illustrating the complexity of the vegetation at the TropiSAR campaign site in French Guiana.
Credits: ESA | | | | |
| | | | | Determination of ice-surface height in a blue ice area using kinematic GNSS observations in Dronning Maud Land in Antarctica. The GNSS antenna is mounted on a Nansen sledge. The aluminium box houses the GNSS receiver and the power supply.
Credits: A. Rülke, TU Dresden | | | | |
| | | | | This image represents a 60 km-long profile taken from the first flight. It is based on shallow-sounding data with 85 MHz bandwidth for the transmitted pulse. The surface echo appears in the top part of the image as a red line. Due to the high sensitivity of the instrument, the signal received as a double bounce is also detected and is visible as a pale blue line, parallel to the surface. However, this feature does not correspond to a true echo and is considered, according to the radar lexicon, as a 'ghost'. Finally, the subsurface echo also appears in pale blue and shows increasing bedrock depth from left to right. In the left-hand part of the image, the two-way time delay of the subsurface echo relative to the surface one is about 10 microseconds, corresponding to an ice depth of about 1 km.
Credits: ESA | | | | |
| | | | Last update: 30 August 2010 | |
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