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  • All Categories (46)
  • Data (2)
  • News (8)
  • Missions (2)
  • Events (1)
  • Tools (2)
  • Documents (31)
  • News - Events and Proceedings

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    Workshop celebrates end of long-running PROBA-1 satellite

    In January, ESA will mark the end of its long-running CHRIS sensor onboard the PROBA-1 satellite in a special workshop.

  • 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 - Infographics

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    Key facts about Canada's ozone-studying SCISAT mission

    Learn about the SCISAT mission in our new 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.

  • Tools - Catalogues

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    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

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    EO CAT

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

  • News - Success Stories

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    Satellites track the health of the ozone layer

    ESA’s Earth observation activities are contributing to international efforts to monitor and preserve the layer of stratospheric ozone that blankets the planet.

  • News - Infographics

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    A summary of ESA Third Party Mission collections

    A new summary is available, showcasing the ESA archives for Third Party Mission collections.

  • 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 - Thematic area articles

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

    As the impacts of the climate crisis intensify, scientists are using ESA’s Earth observation archives to investigate atmospheric processes and their influences on the planet’s changing environment.

  • Event - Conference

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    Atmospheric Science Conference 2006

    The 2006 conference was dedicated the theme atmosphere to provide scientists and data users with the opportunity to present first-hand and up-to-date results from their ongoing research activities ESA Mission instruments.

  • Document - Publication - Paper

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    Atmospheric-Chemistry-Experiment-ACE-Mission-Overview.pdf

    This paper was published in the GEOPHYSICAL RESEARCH LETTERS, Vol.32 (L15S01, doi:10.1029/2005GL022386, 2005) and presents an overview of the Canadian mission SCISAT-1 (also known as the Atmospheric Chemistry Experiment ACE) and some of its first scientific results.

  • News - General News

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    Release of CHRIS PROBA-1 toolbox for SNAP

    PROBA -1 continues to provide valuable hyperspectral data to the scientific community, and so the tools to handle this data have been incorporated into ESA’s SNAP multi-mission toolbox.

  • Data - External Data (Restrained)

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    SciSat-1: ACE-FTS and MAESTRO

    SCISAT-1 data aim at monitoring and analysing the chemical processes that control the distribution of ozone in the upper troposphere and stratosphere. It provides acquisitions from the two instruments MAESTRO and ACE-FTS. MAESTRO: Measurement of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation. Dual-channel optical spectrometer in the spectral region of 285-1030 nm. The objective is to measure ozone, nitrogen dioxide and aerosol/cloud extinction (solar occultation measurements of atmospheric attenuation during satellite sunrise and sunset with the primary objective of assessing the stratospheric ozone budget). Solar occultation spectra are being used for retrieving vertical profiles of temperature and pressure, aerosols, and trace gases (O3, NO2, H2O, OClO, and BrO) involved in middle atmosphere ozone distribution. The use of two overlapping spectrometers (280 - 550 nm, 500 - 1030 nm) improves the stray-light performance. The spectral resolution is about 1-2 nm. ACE-FTS: Fourier Transform Spectrometer. The objective is to measure the vertical distribution of atmospheric trace gases, in particular of the regional polar O3 budget, as well as pressure and temperature (derived from CO2 lines). The instrument is an adapted version of the classical sweeping Michelson interferometer, using an optimised optical layout. The ACE-FTS measurements are recorded every 2 s. This corresponds to a measurement spacing of 2-6 km which decreases at lower altitudes due to refraction. The typical altitude spacing changes with the orbital beta angle. For historical reasons, the retrieved results are interpolated onto a 1 km "grid" using a piecewise quadratic method. For ACE-FTS version 1.0, the results were reported only on the interpolated grid (every 1 km from 0.5 to 149.5 km). For versions 2.2, both the "retrieval" grid and the "1 km" grid profiles are available. SCISAT-1 collection provides ACE-FTS and MAESTRO Level 2 Data. As of today, ACE-FTS products are available in version 4.1, while MAESTRO products are available in version 3.13.

  • Data - Data Description

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    PROBA-1 HRC

    The HRC Level 1A product is an image with a pixel resolution of 8m. The data are grey scale images, an image contains 1026 x 1026 pixels and covers an area of 25 km2. HRC data is supplied in BMP format. All PROBA-1 passes are systematically acquired according to the current acquisition plan, HRC data are processed every day to Level 1A and made available to ESA users. Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service.

  • 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.

  • Document - Publication - Paper

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    Comparing Three Canopy Reflectance Models with Hyperspectral Multi-Angular Satellite Data

    Studies that compare modelled reflectances with satellite-measured reflectances for different wavelengths and view angles are still rare. We compared model outputs from three different canopy reflectance models (SLC, FRT and INFORM) with satellite measured reflectances (Chris/PROBA).

  • Document - Publication - Paper

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    Mapping of chlorophyll and suspended particulate matter maps from CHRIS imagery of the Oostende ---

    The image set created on 5 August 2003 by CHRIS/PROBA is analyzed to assess the feasibility of producing suspended particulate matter (SPM) and chlorophyll (CHL) maps.