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  • News - Success Stories

    News - Success Stories

    Long-term satellite data show wind farms can affect local air currents

    While the current study found wind speed reductions up to 10% at 10 m above mean sea level, wind turbine rotor hubs commonly lie at 80 ...

  • Data - Data Description

    Data - Data Description

    Envisat ASAR WS Single Look Complex L1 [ASA_WSS_1P]

    INSAR applications based either on wide-swath/wide-swath pairs or wide-swath/image mode pairs, applications of ocean current mapping, la...

  • Data - Data Description

    Data - Data Description

    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

    Data - Data Description

    ERS PRARE Precise Orbit Product (ERS.ORB.POD/ERS.ORB/PRC)

    The precise orbit results from a data reduction process in which all available tracking data (Single-Lens Reflex, radar altimeter crossovers, PRARE range and Doppler data) and most accurate correction, transformation and dynamical models are taken into account and in which high level numerical procedures are applied. These orbits are "optimal" achievable representations of the real orbital motion under the circumstances of tracking situation and the "state of the art" model situation. The precise orbit product for the ERS satellites are the satellite ephemeris (position and velocity vector) including time tag, given in a well-defined reference frame, together with the nominal satellite attitude information and a radial orbit correction. Several orbit solutions are currently distributed: A new set of ORB POD (Precise Orbit Determination - REAPER v2) computed with the most updated model standards for the complete ERS-1 and ERS-2 mission. A previous set of ORB POD (REAPER v1) data already available on the ESA dissemination site since 2014, covering the ERS-1 full mission and the ERS-2 mission up to July 2003. ORB PRC which is the original Precise Orbit dataset computed during the ERS mission operations for ERS-1 and ERS-2. In the new POD dataset (REAPER v2) for the ERS-1 and ERS-2 missions, two different orbit solutions are provided together with the combined solution to be used for processing of the radar altimeter measurements and the determination of geodetic/geophysical products: those computed by DEOS (Delft Institute of Earth Observation and Space Systems), and those generated by ESOC (European Space Operations Centre) using different software (GEODYN and NAPEOS respectively). Careful evaluation of the various solutions of REAPER v2 has shown that the DEOS solution for both ERS-1 and ERS-2 has the best performance and is recommended to be used as reference. See the ERS Orbit Validation Report. For the previous version of the POD data set (REAPER v1), with ERS-2 mission data only up to 2003, three different orbit solutions together with the combined solution are available. These precise orbits for ERS-1 and ERS-2 have been computed at DEOS, ESOC, and GFZ (Deutschen GeoForschungsZentrums) using different software and different altimeter databases. Combined solutions have been created using three individual solutions for each satellite. All orbits were derived using consistent models in the same LPOD2005 terrestrial reference frame. These new orbit solutions show notable improvement with respect to DGME04 orbits (Scharroo and Visser, 1998). Thus, RMS crossover differences of new orbits improved by 4-9 mm. Careful evaluation of the various solutions has shown that the combined solution for both ERS-1 and ERS-2 has the best performance. All POD orbit files (REAPER v1/v2) are available in SP3c format.

  • Campaign

    Campaign

    TerraSARSIM

    The current mission design envisages flying two separate radars on separate platforms

  • News - Operational News

    News - Operational News

    MERIS OADS Unavailable 04 March 2022

    MERIS OADS system is currently unavailable. Investigation is under way to fix this issue as soon as possible.

  • News - Success Stories

    News - Success Stories

    10 years of Envisat data help to illuminate ocean processes

    Agulhas Current, a surface oceanic current that forms the western boundary current of the southern Indian Ocean [2]

  • News - General News

    News - General News

    What are the next Earth Explorers?

    ESA have launched five missions in the Earth Explorers programme – GOCE, CryoSat, SMOS, Swarm, and Aeolus – each of which is dedicated to observing an aspect of Earth’s system.

  • News - Data Release news

    News - Data Release news

    New reprocessing of datasets celebrates 30 years of ERS

    For each surface, the experts will use our current knowledge acquired over 30 years of experience, to improve the ERS altimetric and ra...

  • News - Success Stories

    News - Success Stories

    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.

  • Tools - Processing

    Tools - Processing

    PolSARpro

    The current version of PolSARpro is 6

  • News - Data Release news

    News - Data Release news

    ESA's (A)SAR dissemination service enhanced with Envisat ASAR MR L1 data

    With integration of four additional Envisat ASAR Level 1 collections, ESA is now providing access to the complete Envisat and ERS (A)SAR imagery data archive via the ESA (A)SAR Online Dissemination service.

  • News - Success Stories

    News - Success Stories

    Heritage data still widely used today

    Current satellite missions collect data with high frequency, with some able to systematically revisit the same location in the same geo...

  • News - Success Stories

    News - Success Stories

    Space data help to unravel the complexities of Earth’s atmosphere

    ... current understanding of these planet-warming gases

  • News - General News

    News - General News

    Meet a young researcher who studies the behaviour of volcanoes worldwide

    PhD studies abroad, and eventually, led me to the current position I have at the University of Leeds, where not only am I studying volca...

  • News - Events and Proceedings

    News - Events and Proceedings

    National missions in the spotlight at the Living Planet Symposium

    Furthermore, the current missions supported by the Canadian Space Agency, as well as insights into their new data products, validation ...

  • News - Success Stories

    News - Success Stories

    Drone-based Laser Scanning of Tropical Forests for Biomass Cal/Val

    Additionally, the current GEDI mission on the International Space Station (LiDAR), the SAOCOM, NISAR, ALOS-4, and Tandem-L missions (L-...

  • News - Success Stories

    News - Success Stories

    Heritage data trains neural networks to detect urban sprawl

    Since they’ve been trained identically, they can help monitor both current and past urban changes

  • News - Success Stories

    News - Success Stories

    A stroll through Heritage Missions

    In the current digital era, this confirms ESA’s commitment to maintain heritage data and keep information available, in support of envi...

  • Tools - Analysis, Processing

    Tools - Analysis, Processing

    GOCE User Toolbox

    The current version of GUT is 3