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  • All Categories (40)
  • Data (2)
  • News (8)
  • Missions (2)
  • Tools (4)
  • Activities (1)
  • Documents (23)
  • News - Infographics

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    Key facts about Canada's ozone-studying SCISAT mission

    Learn about the SCISAT mission in our new infographic.

  • News - Thematic area articles

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    Monitoring water on Earth's surface

    ESA's Earth observation satellites are playing a leading role in furthering our understanding of how Earth's terrestrial hydrosphere is being influenced by humankind.

  • News - Thematic area articles

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    Satellites investigate Earth’s terrestrial hydrosphere

    ESA’s Earth observation satellites are playing a leading role in furthering our understanding of how Earth’s water cycle is being influenced by humankind.

  • 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.

  • Document - General Reference

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    Third Party Missions Brochure

    This brochure summarises ESA's Third Party Missions programme, providing a timeline and examples of content related to some of the missions.

  • 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.

  • News - Thematic area articles

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    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.

  • News - Infographics

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    An overview of ESA's Third Party Missions programme

    ESA’s Third Party Missions programme consists of almost 50 satellite missions, which are owned by organisations around the world. ESA has agreements with these organisations to acquire, process, and distribute data from their missions

  • News - Infographics

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    ESA Third Party Missions timeline

    We've released a new timeline to illustrate the history of the ESA Third Party Missions.

  • 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.

  • Document - Technical Note

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    Technical Note on Quality Assessment for OceanSat-2 (7 Oct 20)

    Technical Note on Quality Assessment for OceanSat-2 (7 Oct 20)

  • Document - Technical Note

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    Technical Note on Quality Assessment for OceanSat-2 (6 Aug 20)

    Technical Note on Quality Assessment for OceanSat-2 (6 Aug 20)

  • Document - Technical Note

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    Technical Note on Quality Assessment for OceanSat-2 (1 Jan 19)

    Technical Note on Quality Assessment for OceanSat 2 OCM (Quarterly report for Q4 2018)

  • Document - Technical Note

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    Technical Note on Quality Assessment for OceanSat-2 (4 Jan 20)

    Technical Note on Quality Assessment for OceanSat-2 OCM (Quarterly report for Q3 and Q4 2019)

  • Document - Technical Note

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    Technical Note on Quality Assessment for OceanSat-2 (3 Jul 19)

    Technical Note on Quality Assessment for OceanSat 2 OCM (Quarterly report for Q2 2019)

  • Document - Technical Note

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    Technical Note on Quality Assessment for OceanSat-2 (5 May 20)

    Technical Note on Quality Assessment for OceanSat-2 OCM (Quarterly report for Q1 2020)

  • Document - Technical Note

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    Technical Note on Quality Assessment for OceanSat-2 (2 Apr 19)

    Technical Note on Quality Assessment for OceanSat-2 OCM (Quarterly report for Q1 2019)

  • Document - User Guide

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    TPM-L-OADS-dissemination-service-User-Manual.pdf

    This guide describes the Third Party Missions Dissemination System.

  • 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.