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  • Data (1)
  • News (8)
  • Missions (3)
  • Events (5)
  • Tools (1)
  • Activities (3)
  • Campaigns (1)
  • Documents (55)
  • News - Events and Proceedings

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    Celebrating ESA’s first small satellite with science success

    Scientists and data users gathered at a special workshop to celebrate the end of PROBA-1’s CHRIS sensor and discuss the results of this overachieving mission.

  • News - Success Stories

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    Commercial and international data for fire monitoring

    As climate change sparks a surge in the frequency and intensity of wildfires, satellite data disseminated through ESA’s Third Party Missions (TPM) programme are helping scientists to track and investigate these potentially damaging natural events.

  • News - Success Stories

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    New cross-calibration readies PROBA-1 data for climate research

    While PROBA-1 has already exceeded expectations by suppling over 21 years of Earth observation hyperspectral data, recent cross-calibration activities are aiming to ensure the data will robustly serve long time-series research, even when the satellite ends operations.

  • News - Data Release news

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    Full European Landsat data collection now available under the same catalogue

    The Full European Landsat data collection, from Landsat-1 to Landsat-8, is now available under the same catalogue

  • News - Thematic area articles

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    Space helps monitor Earth’s changing biosphere

    Earth’s biosphere is continually changing. Through its pioneering Earth observation missions, ESA is making critical contributions to monitor these changes and their impacts on Earth’s water and carbon cycles.

  • News - Infographics

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    PROBA-1 - From technology demonstration to long-term Earth observation

    Learn about ESA's PROBA-1 (Project for On-Board Autonomy) mission in our new infographic.

  • News - Data Release news

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    New Landsat-8 Collection-2 Level 1 and Level 2 data now available

    Within ESA’s Landsat offering, access to the European coverage of Landsat-8 Collection-2 Level 1 and Level 2 data is now available.

  • Data - EO Sign In Authentication (Open)

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    Landsat 8 Collection 2 European Coverage

    This dataset contains the European coverage of Landsat-8 Collection 2 data, both Level-1 and Level-2, acquired since the beginning of the mission. Landsat-8 Collection 2 is the result of a reprocessing effort on the archive and on newly acquired products with significant improvement with respect to Collection 1 on data quality, obtained by means of advancements in data processing and algorithm development. Primarily, this involves a relevant improvement in the absolute geolocation accuracy (now re-baselined to the European Space Agency Copernicus Sentinel-2 Global Reference Image (GRI) but also includes updated digital elevation modelling sources, improved Radiometric Calibration (even correction for the TIRS striping effect), enhanced Quality Assessment Bands, updated and consistent metadata files and usage of Cloud Optimised Georeferenced (COG) Tagged Image File Format. Landsat-8 Level-1 products combine data from the two Landsat instruments, OLI and TIRS. The Level-1 products generated can be either L1TP or L1GT: L1TP - Level-1 Precision Terrain (Corrected) (L1T) products: Radiometrically calibrated and orthorectified using ground control points (GCPs) and digital elevation model (DEM) data to correct for relief displacement. The highest quality Level-1 products suitable for pixel-level time series analysis. GCPs used for L1TP correction are derived from the Global Land Survey 2000 (GLS2000) data set. L1GT - Level-1 Systematic Terrain (Corrected) (L1GT) products: L1GT data products consist of Level-0 product data with systematic radiometric, geometric and terrain corrections applied and resampled for registration to a cartographic projection, referenced to the WGS84, G873, or current version. The dissemination server contains three different classes of Level-1 products Real Time (RT): Newly acquired Landsat-8 OLI/TIRS data are processed upon downlink but use an initial TIRS line-of-sight model parameters; the data are made available in less than 12 hours (4-6 hours typically). Once the data have been reprocessed with the refined TIRS parameters, the products are transitioned to either Tier 1 or Tier 2 and removed from the Real-Time tier (in 14-16 days). Tier 1 (T1): Landsat scenes with the highest available data quality are placed into Tier 1 and are considered suitable for time-series analysis. Tier 1 includes Level-1 Precision and Terrain (L1TP) corrected data that have well-characterized radiometry and are inter-calibrated across the different Landsat instruments. The georegistration of Tier 1 scenes is consistent and within prescribed image-to-image tolerances of ≦ 12-metre radial root mean square error (RMSE). Tier 2 (T2): Landsat scenes not meeting Tier 1 criteria during processing are assigned to Tier 2. Tier 2 scenes adhere to the same radiometric standard as Tier 1 scenes, but do not meet the Tier 1 geometry specification due to less accurate orbital information (specific to older Landsat sensors), significant cloud cover, insufficient ground control, or other factors. This includes Systematic Terrain (L1GT) and Systematic (L1GS) processed data. Landsat-8 Level-2 products are generated from L1GT and L1TP Level-1 products that meet the <76 degrees Solar Zenith Angle constraint and include the required auxiliary data inputs to generate a scientifically viable product. The data are available a couple of days after the Level-1 T1/T2. The Level-2 products generated can be L2SP or L2SR: L2SP - Level-2 Science Products (L2SP) products: include Surface Reflectance (SR), Surface Temperature (ST), ST intermediate bands, an angle coefficients file, and Quality Assessment (QA) Bands. L2SR - Level-2 Surface Reflectance (L2SR) products: include Surface Reflectance (SR), an angle coefficients file, and Quality Assessment (QA) Bands; it is generated if ST could not be generated. Two different categories of Level-1 products are offered: LC with Optical, Thermal and Quality Map images, LO with Optical and Quality Map images (Thermal not available). For the Level-2 data, only LC combined products are generated.

  • News - Data Release news

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    New Landsat-8 Collection-2 Level 1 and Level 2 data available from January

    From the beginning of 2022, ESA will start the distribution of the European coverage of Landsat-8 Collection-2 Level 1 and Level 2 products.

  • Tools - Other

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    Urban TEP

    The Urban Thematic Exploitation Platform enables access, processing, uploading, visualisation, manipulation and comparison of data over urban areas.

  • Mission - Third Party Missions

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    PROBA-1

    PROBA-1 is a technology demonstration satellite that later became an operational Earth observation mission.

  • Campaign

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    SPARC

    ESA's SPectra bARrax Campaign (SPARC) activity was part of the preparatory study for a proposed ESA Earth Explorer mission called SPECTRA. The objective was to collect a CHRIS/PROBA reference dataset for SPECTRA-related studies.

  • Mission - Heritage Missions

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    Landsat Series

    The Landsat Series is the world's longest running system of satellites for moderate-resolution optical remote sensing for land, coastal areas and shallow waters.

  • Activity - Quality

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    EDAP

    The ESA Earthnet Data Assessment Pilot (EDAP) project will perform assessments for various missions to ensure the delivered data is fit for purpose.

  • Activity - Cal/Val activities

    S2L8VegStruc

    The Retrieval of vegetation structural variables from Sentinel-2/Landsat 8 time series study's objective is to test and validate the capabilities for the retrieval of structural variables.

  • Activity - Cal/Val activities

    MBASSS

    Mer Bleue Arctic Surrogate Simulation Site (MBASSS) Sentinel-2 and Landsat 8 Validation Project objectives are to develop capability to validate Landsat 8 Operational Land Imager land data products.

  • Document - Technical Note

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    Note on CHRIS Acquisition Procedure and Image Geometry

    The aim of this document is to clarify the acquisition procedure CHRIS on-board the PROBA satellite. It provides a detailed description of the acquisition procedure and summarises the implications for the geometrical properties of the CHRIS images.

  • Document - Proceedings

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    Hyperspectral Workshop 2010

    Proceedings of the Hyperspectral Workshop 2010 held on 17-18 March 2010 in ESA-ESRIN, Frascati, Italy. This workshop was organised by the European Space Agency (ESA), the German Aerospace Center (DLR)/the German Research Center for Geosciences (GFZ) and the Italian Space Agency (ASI).

  • Document - General Reference

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    Earth from Space - 5 Years of Proba