earth online
  • All Categories (83)
  • Data (6)
  • News (7)
  • Missions (1)
  • Events (8)
  • Tools (6)
  • Activities (6)
  • Documents (49)
  • News - General News

    prompt photo

    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.

  • News - How to guides

    prompt photo

    How to request level zero radar data from ERS and Envisat

    To apply to use level zero (A)SAR radar data from ESA’s European Remote Sensing satellites (ERS-1 and ERS-2) and its Envisat mission for research purposes, you should prepare and submit an online form – called a Data Service Request – to put forward your proposed project to ESA for evaluation.

  • Tools - Catalogues

    prompt photo

    FedEO

    FedEO is a data catalogue that provides a unique entry point to a number of scientific catalogues and services for, but not limited to, European and Canadian missions.

  • Tools - Catalogues

    prompt photo

    EO CAT

    EO CAT is a data catalogue, offering a Next Generation Earth Observation system designed to manage end-user Earth Observation services.

  • Activity - General activities

    prompt photo

    EO Summer Schools

    ESA's series of summer schools, on Monitoring of the Earth System, aims to promote the exploitation of Earth observation (EO) data.

  • Event - Conference

    prompt photo

    Dragon 3 2014 Symposium

    The Dragon 3 2014 Symposium was part of the Dragon 3 Programme, focussed on exploitation of ESA, ESA's Third Party Missions and Chinese Earth observation data for geo-science and applications development in land, ocean and atmospheric applications.

  • Event - Conference

    prompt photo

    Dragon 3 2015 Symposium

    The Dragon 3 2015 Symposium was part of the Dragon 3 Programme, focussed on exploitation of ESA, ESA's Third Party Missions and Chinese Earth observation data for geo-science and applications development in land, ocean and atmospheric applications.

  • Event - Conference

    prompt photo

    Dragon 3 2016 Symposium

    The Dragon 3 2016 Symposium served as the close of the Dragon 3 Cooperation Programme (2012 to 2016) and formal kick off for Dragon 4 Cooperation projects.

  • Activity - Projects

    prompt photo

    Dragon 3 Cooperation Programme

    The Dragon 3 Programme focussed on the exploitation of ESA, ESA's Third Party Missions and Chinese Earth observation data for geo-science and applications development in land, ocean and atmospheric applications.

  • News - Thematic area articles

    prompt photo

    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.

  • Activity - Projects

    prompt photo

    Dragon 2 Cooperation Programme

    The Dragon 2 Programme focussed on the exploitation of ESA, ESA's Third Party Missions and Chinese Earth observation data for science and applications development in land, ocean and atmospheric applications.

  • News - Success Stories

    prompt photo

    ERS' Contribution to Altimetry

    Satellite radar altimetry missions have transformed the way we see Earth and its oceans. Using the ranging capability of radars, they measure the surface topography profile along a satellite’s track.

  • News - Data Release news

    prompt photo

    New reprocessing of datasets celebrates 30 years of ERS

    The ERS programme celebrated its 30th anniversary on 17 July. Today, we are still exploiting ERS data and experts continue to work on improving the altimeter, radiometer and SAR data the programme acquired.

  • News - Success Stories

    prompt photo

    ERS Heritage Data allow for 30 years of science

    At their time of launch thirty years ago, the two ERS satellites were the most sophisticated Earth observation spacecraft ever developed and launched by Europe.

  • News - Infographics

    prompt photo

    ERS - ESA’s first Earth observation satellites

    To mark the 30th anniversary of ERS, we've released a new infographic summarising the mission.

  • Tools - Apps

    prompt photo

    Heritage Missions app for iOS

    Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.

  • Tools - Apps

    prompt photo

    Heritage Missions app for Android

    Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.

  • Data - Fast Registration with approval (Restrained)

    prompt photo

    ERS-1/2 ATSR Averaged Surface Temperature [AT1/AT2_AR__2P]

    The Averaged Surface Temperature Product (AST) contains averaged geophysical data at two different resolutions, and with respect to two different averaging schemes: measurement data sets at resolutions of 0.5 by 0.5 degrees and 10 by 10 arcmin with respect to a latitude/longitude grid; other data sets contain data averaged over equal area cells of 50 by 50 km and 17 by 17 km aligned with the satellite ground track. Both top-of-atmosphere and surface data sets are provided. The surface temperature data sets provide, for sea cells, nadir and dual view sea surface temperatures, and for land cells, land surface temperature (currently 11 micron BT) and NDVI. Cloud data is also included. No ADS are included in the AST product; auxiliary data is contained within the MDS. The data sets of the AST product are arranged by surface type and resolution. The 3rd reprocessing of ATSR data was performed in 2013; the processing updates that have been put in place and the scientific improvements are outlined in full in the User Summary Note for the Third ERS ATSR Reprocessing.

  • Data - Data Description

    prompt photo

    ERS-1/2 ATSR Meteo Product [AT1/AT2_MET_2P]

    The data is a fast delivery Meteo product designed for use by meteorological offices, and contains averaged BT and SST at 10 arc minute resolution. The single MDS comprises the fields of MDS#3 (SST record, 10 arc min cell) of the AST product, with the addition of Average Brightness Temperature (ABT) fields (BT/TOA sea record, 10 arc min cell) to make it more self-contained. The 3rd reprocessing of ATSR data was performed in 2013; the processing updates that have been put in place and the scientific improvements are outlined in full in the User Summary Note for the Third ERS ATSR Reprocessing.

  • Data - Data Description

    prompt photo

    ERS-1/2 ATSR ARC L2P/L3U [UPA-L2P_GHRSST/L3U_GHRSST]

    The L2P product contains full resolution dual-view Sea Surface Temperature (SST) values. These SST use the ARC SST retrieval and cloud screening which differ from the methods used to produce the Gridded Surface Temperature (ATS_NR__2P) products. In addition to SST, the L2P products contain the ATSR Saharan Dust Index (ASDI) and the clear-sky probability estimated by the ARC cloud detection algorithm. The L2P processor also generates L3U products; these are the L2P products averaged onto a regular grid at 0.1 degree resolution (they are therefore similar to the AR / Meteo Envisat-format products). The L2P and L3U products are provided in NetCDF-4 format following GHRSST Data Specifications (GDS) v2. The L2P/L3U archive has been reprocessed with a new processor based upon the ARC SST; the changes are outlined in full in the L2P Reprocessing User Note.