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  • How to find data collection in EO CAT?

    A short guide to EO-CAT Earth Observation Catalogue application with examples.

  • New stories on change detection and ERS-2 re-entry in HEDAVI

    Two new stories are now available in ESA’s HEDAVI (HEritage DAta VIsualisation) tool. HEDAVI visualises Earth observation data from satellites in ESA’s Heritage and Third Party Missions programme, and includes some data from the Copernicus Sentinel satellites.

  • Oil Spill in Galicia (Spain), November 2002 - April 2003

    Explore a series of satellite images depicting the progression of the Prestige oil spill along the Galician coast from November 2002 to March 2003.

  • Deforestation in Guatemala Rainforest, 2010

    Explore a series of images showing deforestation in Guatemala's rainforest ecoregions.

  • ERS ATSR fourth Reprocessing datasets available to users

    The fourth Reprocessing of the ATSR L1B datasets derived from the ERS-1 and ERS-2 satellites have now been released to users by the European Space Agency (ESA).

  • Aegean Islands (Greece), 2001

    See the Aegean Sea through satellite image captured by ERS-2, featuring a view of Samos Island and other Greek islands.

  • Oil Spill In Wales (UK), February 1996

    Explore the impact of the 1996 Sea Empress oil spill through satellite images captured by Radasat, ERS-1, and ERS-2

  • Cartagena (Colombia), 2001

    View Cartagena in a SAR multitemporal composite image.

  • Strait of Messina (Italy), 2004

    View the Strait of Messina in a SAR multitemporal composite image.

  • Strait of Gibraltar (Spain), 2002

    View the Strait of Gibraltar in a SAR multitemporal composite image, created by merging three satellite images from 1999, 2000 and 2002.

  • ERS ATSR L1B Brightness Temperature/Radiance [ER1_AT_1_RBT / ER2_AT_1_RBT]

    Band measurements with associated uncertainty estimates. The ERS-1/2 ATSR Level 1B Brightness Temperature/Radiance products (RBT) contain top of atmosphere (TOA) brightness temperature (BT) values for the infra-red channels and radiance values for the visible channels, when available, on a 1-km pixel grid. The visible channels are only available for the ATSR-2 instrument. Values for each channel and for the nadir and oblique views occupy separate NetCDF files within the Sentinel-SAFE format, along with associated uncertainty estimates. Additional files contain cloud flags, land and water masks, and confidence flags for each image pixel, as well as instrument and ancillary meteorological information. The ATSR-1 and ATSR-2 products [ER1_AT_1_RBT and ER2_AT_1_RBT], in NetCDF format stemming from the 4th ATSR reprocessing, are precursors of Envisat AATSR and Sentinel-3 SLSTR data. They have replaced the former L1B products [AT1_TOA_1P and AT2_TOA_1P] in Envisat format from the 3rd reprocessing. Users with Envisat-format products are recommended to move to the new Sentinel-SAFE like/NetCDF format products, and consult the ERS ATSR Product Notice Readme document. The processing updates that have been put in place and the expected scientific improvements for the ERS ATSR 4th reprocessing data have been outlined in full in the User Documentation for (A)ATSR 4th Reprocessing Products

  • Bosphorus (Turkey), 2004

    View Bosphorus in a SAR multitemporal composite image.

  • Helsinki (Finland), 2004

    View Helsinki in a SAR multitemporal composite image.

  • Athens, Greece Through SAR Eyes

    Explore Athens' evolution through ERS-2 SAR imagery, revealing the city's changes from 1996, 1999, and 2003.

  • ESA's improved Earth system data records: what is in store for the future?

    Fundamental Data Records (FDRs) are instrumental in advancing our understanding of Earth systems and for addressing societal challenges effectively. These long-term records contain uncertainty-quantified, calibrated and geo-located multi-instrument/multi-platform satellite sensor data spanning several decades to support climate-related applications.

  • Global understanding of Earth's land surfaces greatly boosted by satellite data

    ESA perform land surface monitoring with a range of instruments onboard satellites acquiring optical and radar data. Collections of data from these missions are freely available for research purposes.

  • Transforming space data into climate action

    ESA’s Earth observation activities are playing a key role in the revitalised global drive to combat climate change.

  • Data preservation takes centre stage at Living Planet Symposium

    Against the backdrop of the famed Rhine River, world-class scientists and Earth observation data-users are gathered this week in the historical city of Bonn, at the Living Planet Symposium (LPS).

  • Interviewing Mirko Albani

    ESA’s Heritage Space Programme Manager describes the goals of the programme, some of the challenges involved in preserving and improving 40 years of historical Earth observation data, and his passion for curating this long-term archive.

  • Satellite data central to ocean monitoring

    Over 95% of Earth’s water is found in our oceans, and yet sadly, oceans are under stress from climate change and pollution. Monitoring our oceans is vital for Earth’s survival and satellites are the primary means of long-term and independent observation of our vast ocean bodies and their associated coastal zones.