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ASAR Image Orthorectification

April 3rd, 2009 Category: Earth Observation

Figure 1 - 3D Model

Figure 1 - 3D Model

These images of Reunion Island provide a clear example of the improvements made through the use of the orthorectification technique.
The original product has been processed, orthorectified and projected using the Chelys SRRS (Satellite Rapid Response System). The orthorectification process is now fully automatic and transparent. The Digital Elevation Model used is the Nasa SRTM v4 (Shuttle Radar Topography Mission).

The proper DEM is selected according to the image resolution: from 15 arcseconds up to 1 arcsecond (only available for USA). The performance of the system are kept in real-time. The entire correction process takes less than 20 seconds per product.

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Meris Full Resolution Mosaics of Europe

March 4th, 2009 Category: Earth Observation, Mosaics

Two weeks ago, we published a Meris FR Mosaic of Italy. The large number of interested users has led us to publish the entire Mosaic of Central/Eastern Europe. Starting today and over the next few weeks we will update the Mosaic section and the present post as soon as a new country is inserted.

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POLinSAR 2009, The 4th International SAR Workshop

December 3rd, 2008 Category: Earth Observation, Events

The 4th International Workshop on Science and Applications of SAR Polarimetry and Polarimetric Interferometry - POLinSAR 2009

The European Space Agency is organising POLinSAR 2009, the 4th International Workshop on Science and Applications of SAR Polarimetry and Polarimetric Interferometry, which will be hosted in ESRIN, Frascati, Italy on 26-30 January 2009.


Objectives

The main objectives of the workshop are to:

  • Provide a forum for scientific exchange and to initiate and encourage close collaboration between individual research groups
  • Exploitation of spaceborne missions
  • Present new results from the latest studies in the field and to assess the state-of-the-art
  • Present polarimetric and interferometric results from ALOS PALSAR, RADARSAT-2 and TerraSAR-X
  • Assess the available Pol-InSAR tools and datasets
  • Review the bio-geophysical parameters that can be retrieved and their accuracy
  • Make recommendations for algorithm development and new products, future missions and applications
  • Report on progress/status of recommendations of PolInSAR 2007

The workshop will focus on theory and methods in the fields of SAR Polarimetry and Polarimetric Interferometry around the following theme:

  1. SAR Polarimetric Interferometry (Pol-InSAR)
  2. Theoretical Modelling
  3. Applications of SAR Polarimetry
    • Land: Forest, Agriculture, Environment (Urban, global change, land cover), Wetlands
    • Ocean: Pollution Monitoring, Ship detection, Ocean Parameters Retrieval, Sea Features
    • Cryosphere: Snow, Land Ice and Sea Ice Monitoring
    • Hazards: Fire Monitoring, Volcanoes, Flooding, Earthquake
  4. Polarimetry and Persistent Scatterer Interferometry (PSI)
  5. Compact Polarimetry
  6. ALOS PALSAR, TerraSAR-X, RADARSAT-2, COSMO-SkyMed results
  7. Future Spaceborne missions for Pol-InSAR
  8. Airborne Pol-InSAR campaigns
source ESA

MOSRI, a Real Time Mosaic generation system

August 28th, 2008 Category: Earth Observation, Mosaics

MOSRI Mosaic - First Half 2008 - Meris Medium Resolution

MOSRI Mosaic - First Half 2008 - Meris Medium Resolution

The importance of satellite data is becoming greater every day thanks to technological progress that has made technology which once could only be obtained through the use of supercomputers, available to the general public.

Today, public networks (Internet) allow us to transmit huge amounts of data in a way that permits the distribution of satellite images which, due to their dimensions, could only be distributed on physical media (DVD, Tapes, etc.) until a few years ago. At present, new 3D visualization tools (Google Earthâ„¢, NASA WorldWind, etc.) allow us to depict information with a completely new appearance and to interact with it in a more intuitive way. All this, in addition to an increased sense of global awareness, has increased interest in images of our planet as seen from space.

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ALOS Symposium 2008

August 17th, 2008 Category: Earth Observation, Events

ALOS Symposium 2008The 2008 Joint PI Symposium of the ALOS Data Nodes follows the First Symposium, held in 2007 in Kyoto, Japan. The event, organised by ESA in cooperation with JAXA, ASF, GA and GISTDA, will be held on the island of Rhodes, Greece, from 3 to 7 November 2008.

The Symposium will offer a forum to exchange views on technical and scientific issues on the data exploitation. It will provide updates of the satellite status and will allow to present the progress in recent research of ongoing projects.

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