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  • News - Data Release news

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    Envisat AATSR 4th Reprocessing data now available

    The 4th Reprocessing of the AATSR instrument L1B data stemming from the Envisat satellite have now been released to users following successful quality assessment.

  • Data - Data Description

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    Envisat AATSR L1B Brightness Temperature/Radiance [ENV_AT_1_RBT]

    The Envisat AATSR Level 1B Brightness Temperature/Radiance product (RBT) contains top of atmosphere (TOA) brightness temperature (BT) values for the infra-red channels and radiance values for the visible channels, on a 1-km pixel grid. 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. This AATSR product [ENV_AT_1_RBT] in NetCDF format stemming from the 4th AATSR reprocessing, is a continuation of ERS ATSR data and a precursor of Sentinel-3 SLSTR data. It has replaced the former L1B product [ATS_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.  The 4th reprocessing of ENVISAT AATSR data was completed in 2022; the processing updates that have been put in place and the expected scientific improvements have been outlined in full in the User Documentation for (A)ATSR 4th Reprocessing Products.

  • News - Operational News

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    PROBA-1 - End of CHRIS acquisitions

    The CHRIS instrument onboard PROBA-1 successfully ended its operational phase in December 2022 and will no longer acquire images.

  • News - Success Stories

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    Pléiades unlocks information about rock glaciers in central Himalaya

    As climate change accelerates the melting of glacial ice, remote sensing scientists are tapping into the potential of Pléiades data to help vulnerable mountainous communities.

  • News - Data Release news

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    ALOS PRISM Level 1C data collection now available for users

    ESA offers registered users access to the ALOS PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C data acquired by ESA ground stations in the ADEN zone, plus some worldwide data requested by European scientists.

  • Document - User Guide

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    User Documentation for (A)ATSR 4th Reprocessing Level 1B Products

    This document provides a guide for users of (A)ATSR 4th reprocessing products, giving easily viewed format details, highlighting differences from previous reprocessed products, noting technical features inherent in the products, and giving notification of remaining Open Issues.User Documentation for (A)ATSR 4th Reprocessing Level 1B Products

  • Document - Technical Note

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    AATSR IPF Change Log v4

    AATSR IPF Change Log v4

  • Document - Product Readme Note

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    AATSR Level 1B (ENV_AT_1_RBT) Product Notices

    This Readme file contains the Product Notice (PN) information for the AATSR Level 1B products: ENV_AT_1_RBT.

  • News - Thematic area articles

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    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.

  • Data - Data Description

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    ALOS PRISM L1C

    This collection provides access to the ALOS-1 PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C data acquired by ESA stations (Kiruna, Maspalomas, Matera, Tromsoe) in the ADEN zone, in addition to worldwide data requested by European scientists. The ADEN zone was the area belonging to the European Data node and covered both the European and African continents, a large part of Greenland and the Middle East.  The full mission archive is included in this collection, though with gaps in spatial coverage outside of the; with respect to the L1B collection, only scenes acquired in sensor mode, with Cloud Coverage score lower than 70% and a sea percentage lower than 80% are published: Time window: from 2006-08-01 to 2011-03-31 Orbits: from 2768 to 27604 Path (corresponds to JAXA track number): from 1 to 665 Row (corresponds to JAXA scene centre frame number): from 310 to 6790. The L1C processing strongly improve accuracy compared to L1B1 from several tenths of meters in L1B1 (~40 m of northing geolocation error for Forward views and ~10-20 m for easting errors) to some meters in L1C scenes (< 10 m both in north and easting errors). The collection is composed by only PSM_OB1_1C EO-SIP product type, with PRISM sensor operating in OB1 mode and having the three views (Nadir, Forward and Backward) at 35km width. The most part of the products contains all the three views, but the Nadir view is always available and is used for the frame number identification. All views are packaged together; each view, in CEOS format, is stored in a directory named according to the JAXA view ID naming convention.

  • News - General News

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    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.

  • News - Maintenance News

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    ESA ALOS Optical - Maintenance on 06 December 2022

    A software maintenance activity affecting the ALOS Optical data dissemination service has been planned on Tuesday 06 December 2022, between 08:00 and 16:00 UTC.

  • News - Infographics

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    FLEX infographic

    Learn about ESA's upcoming FLEX mission, which is dedicated to gathering information about photosynthetic activity to shed light on the functioning of Earth's vegetation, in our latest infographic.

  • News - Maintenance News

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    ESA MERIS and SMOS Dissemination - Maintenance on 22 and 29 November 2022

    Maintenance will take place on 22 and 29 November affecting the MERIS and SMOS dissemination services.

  • News - Success Stories

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    New worldwide dataset captures the planet in fine detail

    Scientists have developed an open source planetwide dataset of high-resolution Earth observation imagery, thanks to commercial data delivered by ESA’s Third Party Missions (TPM) programme.

  • News - Maintenance News

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    ESA Landsat Dissemination - Maintenance on 15 November 2022

    Maintenance has been scheduled on 15 November affecting the Landsat dissemination service.

  • Data - Data Description

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    Landsat 7 ETM + European and Mediterranean Countries Cloud Free Collection

    This dataset contains the cloud-free products from Landsat 7 Enhanced Thematic Mapper collection acquired over Europe, North Africa and middle East; for each scene only one product is selected, with the minimal cloud coverage. The Landsat 7 ETM+ scenes typically cover 185 x 170 km. A standard full scene is nominally centred on the intersection between a Path and Row (the actual image centre can vary by up to 100m). The data are system corrected.

  • Data - Data Description

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    Landsat 5 TM European and Mediterranean Countries Cloud Free Collection

    This dataset contains the cloud-free products from Landsat 5 Thematic Mapper collection acquired over Europe, North Africa and middle East; for each scene only one product is selected, with the minimal cloud coverage. The acquired Landsat TM scene covers approximately 183 x 172.8 km. A standard full scene is nominally centred on the intersection between a path and row (the actual image centre can vary by up to 100 m). The data are system corrected.

  • News - Infographics

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    EarthCARE infographic

    Learn about ESA’s upcoming cloud, aerosol and radiation explorer mission – EarthCARE – in our latest infographic.

  • Document - Data Access Information

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    ESA-archive-third-party-mission-collections.pdf

    Discover the ESA archive data collections offered for the Third Party Missions programme.

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