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Article Images
Roundtable: New radar imaging technologies for Earth observation
 
19 July 2002

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Workshop on Application Polinsar 2003 to be held at Esrin (Rome) 14-16 January 2003

Credits: ESA
 
  A brief introduction
 
Dr Shane Cloude, director and senior scientist with AEL
Shane Cloude received his BSc degree from the University of Dundee, Scotland in 1981 and his PhD from the University of Birmingham, England in 1987. He then worked as a radar scientist at the Royal Signals and Radar Establishment (RSRE) in Great Malvern, England. Following this he held teaching and research posts at the University of Dundee, the University of York in England and the University of Nantes in France before taking on his present role in 1996. He is now director and senior scientist with AEL Consultants, undertaking contract research on a range of problems associated with radar and electromagnetic scattering.
Dr Cloude is a Fellow of the IEEE Geoscience and Remote Sensing Society, a Fellow of the Alexander von Humboldt Society in Germany and Honorary Professor at the University of Dundee. His main research interests lie in polarisation effects in electromagnetic scattering and their applications in radar and optical remote sensing. He is the author of 1 book on time domain antennas, 10 contributed book chapters, 20 journal publications and over 75 international conference and workshop papers.

Credits: AEL Consultants
 
 
Prof. Eric Pottier, head of the Radar Polarimetry Group at the U
Prof. Eric Pottier is presently the head of the Radar Polarimetry Group of the Antenna, Radar and Telecommunication Laboratory at the University of Rennes 1, France, where he has been a full professor since 1999 and received his MSc in 1987 and PhD in 1990 in signal processing and telecommunications.
His current research and education activities centre on analog electronics, microwave theory and radar imaging with emphasis in radar polarimetry, including radar image processing, polarimetric scattering modelling, supervised/unsupervised polarimetric segmentation and basic theory. He is the coordinator of the research group’s Quantitative Data Inversion of the European Project TMR Radar Polarimetry, and a member of the U.S. Navy Research Interaction program on Wideband Interferometric and Polarimetric Surveillance and Sensing. He has authored five book, 19 papers in refereed journals and more than 120 papers in conference and symposium proceedings.

Credits: Prof. Eric Pottier, Univ. of Rennes 1
 
 
Landslide in Slovenia
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Images acquired on December 1st, 2000, October 25th, 1998, and their difference are shown as red,green and blue respectively. Landslide position and damage area are shown as vector overlays. Processing and map production Scientific Research Centre of the Slovenian Academyof Sciences and Arts Copyright (c) 2001 by SRC SASA,original data by CSA
 
  What are the benefits to the public of these technologies?
 
Envisat (Artist's view)
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Envisat is a truly advanced Earth observation satellite with a unique combination of sensors that will vastly improve the range and accuracy of scientific measurements of the atmosphere, oceans, land surface and ice. Its total range of capabilities far exceed those of any previous or planned Earth observation satellite. It will be launched in 2002 by an Ariane-5 launcher.

Credits: ESA/Denmann production
 
 
Antarctic Peninsula ASAR, 18 March 2002
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This 200-km subset of an ASAR wide swath image shows the marginal ice zone outside the ice shelf at Marguerite Bay on the west side of the Antarctic Peninsula.

In the centre of the image a medium-scale pair of eddies is revealed as two spiralling vortices of open water (dark backscatter) and first-year sea ice (bright backscatter). The eddies spin in opposite directions (cyclonic and anti-cyclonic). Each has a mean diameter of approximately 25 km.

These features are very common in the marginal ice zone and represent clear evidence of coupled sea-ice-ocean-atmospheric interactions.

Technical Information:
Instrument: Advanced Synthetic Aperture Radar (ASAR)
Mode: Wide Swath
Acquisition date: 18 March 2002
Orbit number: 00250
Orbit direction: Descending
Polarisation: VV
Resolution: 150 metres

Credits: ESA

 
  What are the implications of this research on environmental management?
 
 
 
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About EnvisatEnvisat ResultsEnvisat InstrumentsAEL ConsultantsUniversity of Rennes 1About Observing the EarthPOLinSAR 2003
 
 
 
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