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  • News (25)
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  • Events (17)
  • Tools (8)
  • Activities (7)
  • Documents (2732)
  • News - How to guides

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    HEDAVI Discover: a step-by-step guide

    The Heritage Data Visualisation tool (HEDAVI) is a platform developed by the French Science Consulting for Earth Observation group, VisioTerra, which allows users to freely access over 40 years of ESA Earth Observation Heritage data, Third Party Missions and some Copernicus data.

  • News - Data Release news

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    Envisat AATSR 4th reprocessing data now available on new ESA Dissemination Server

    The latest reprocessed Envisat AATSR Level 1B Brightness Temperature/Radiance dataset [ENV_AT_1_RBT] has now been migrated from simple FTP-S access to the new ESA (A)ATSR Online Dissemination Service.

  • News - Operational News

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    Temporary interruption to Envisat AATSR dissemination service

    A planned downtime will affect the access to the ftp dissemination server for the Envisat AATSR data during the period 13-15 February 2024.

  • Document - Product Readme Note

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    QA4EO-OQC-MEM-VEG-5019_AATSR_Product_Notice_Readme_for_ENV_AT_1_RBT_v1.1

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

  • News - Success Stories

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    Discover Earth like never before: the HEDAVI tool

    The Heritage Data Visualisation tool, or HEDAVI, enables the analysis of global spatio-temporal dynamics of natural and artificial environments, covering over 40 years of ESA Earth Observation Heritage data, Third Party Missions and some Copernicus data.

  • 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 ADEN zone. With respect to the L1B collection, only scenes acquired in sensor mode with a Cloud Coverage score lower than 70% and a sea percentage lower than 80% are published: 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 metres in L1B1 (~40 m of northing geolocation error for Forward views and ~10-20 m for easting errors) to some metres in L1C scenes (< 10 m both in north and easting errors). The collection contains only the PSM_OB1_1C EO-SIP product type, using data from PRISM operating in OB1 mode with three views (Nadir, Forward, and Backward) at 35 km wide. Most of the products contain all 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 - Thematic area articles

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    Cloud-free collections key for land monitoring

    Satellite imagery is a crucially important tool for monitoring the land, but cloud cover can often block parts of Earth’s surface from view, limiting subsequent analyses.

  • News - Data Release news

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    ALOS PRISM L1C European Coverage Cloud Free data collection now available for users

    As part of Earthnet’s Third Party Missions Programme framework, ESA is pleased to announce that the ALOS PRISM L1C European Coverage Cloud Free data collection is now available for research purposes.

  • Data - Data Description

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    ALOS PRISM L1C European Coverage Cloud Free

    This collection is composed of a subset of ALOS-1 PRISM (Panchromatic Remote-sensing Instrument for Stereo Mapping) OB1 L1C products from the ALOS PRISM L1C collection (DOI: 10.57780/AL1-ff3877f) which have been chosen so as to provide a cloud-free coverage over Europe. 70% of the scenes contained within the collection have a cloud cover percentage of 0%, while the remaining 30% of the scenes have a cloud cover percentage of no more than 20%. The collection is composed of PSM_OB1_1C EO-SIP products, with the PRISM sensor operating in OB1 mode with three views (Nadir, Forward and Backward) at 35 km width.

  • News - Spotlight on EO community

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    Meet the Quality Assurance for EO Team

    The Quality Assurance For Earth Observation (also known as QA4EO) Service began its operations on 1 November 2019, providing support to the Data Quality and Algorithms Management Office at ESRIN, within the Sensor Performance, Processing and Algorithm section.

  • News - Success Stories

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    Envisat delivers a decade of insights into ocean oil slicks

    More than ten years after it beamed its final image back to Earth, ESA’s Envisat satellite is still helping to investigate and address key societal and environmental challenges.

  • Data - Announcement of Opportunity (Restrained)

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    Announcement of Opportunity for S3VT (Sentinel-3 Validation Team)

    In the framework of a Copernicus collaborative agreement ESA and EUMETSAT invite interested groups and individuals to support the Sentinel-3 Validation Team (S3VT).

  • 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 - EO Sign In Authentication (Open)

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    Envisat AATSR L1B Brightness Temperature/Radiance [ENV_AT_1_RBT]

    - AATSR Full Resolution land and ocean cover image of the Iberian Peninsula from 28 October 2006 AATSR Full Resolution land cover image of the Iberian Peninsula from 28 October 2006. 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 - 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 - How to guides

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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.

  • 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.