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Campaigns   The Russian high altitude research aircraft – ‘Geophysica’ used in the Envisat validation campaign. The dome on top of the aircraft, behind the pilot’s cabin houses the MIPAS-STR sensor.   Colour composite of airborne radar images acquired at three different frequencies (L-, C- and X-band) by the DLR E-SAR system during the ESA TerraSARSIM campaign in Barrax, Spain, in April 2003. The aim of the campaign was to investigate the effect of different acquisition times for each frequency on the combined information content of the three frequencies in support of the ESA TerraSAR L project.
The circular fields in the image are typical of pivot irrigation systems installed in the area. The light green slice in the circular field located in the upper right of the image illustrates the enhanced radar return due to the wet soil conditions after the pivot boom had passed over the area.  The Do-228 plane carrying ASIRAS the airborne radar altimeter that mimics measurements made by the CryoSat mission.  An illustration of validation activities for cholorphyll concentrations map (an indicator of algae bloom) from space. The background image represents a cholorphyll concentration map derived from SeaWiFS satellite data. Areas of low concentration are coloured in blue, medium concentrations have a yellow colour and high concentrations have a dark red colour. The dots show were in-situ measurements were collected at a depth of four metres from a dedicated research cruise by the Centre for Coastal and Marine Sciences (CCMS) and Plymouth Marine Laboratory (PML) in Britain  ERS radar image of Flevoland, The Netherlands  The 20 metre tower which was erected in order to observe the boreal forest canopy from above during the SIFLEX campaign 2002 Last update: 13 September 2011 |