earth online
  • All Categories (24)
  • Data (1)
  • News (11)
  • Missions (1)
  • Events (5)
  • Activities (1)
  • Documents (5)
  • News - Events and Proceedings

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    Featuring the power of Earth observation data at EGU

    The European Geosciences Union General Assembly 2024 brings together geoscientists from all over the world, aiming to provide a forum where scientists and early career researchers can present their work and discuss their ideas with experts, in all fields of geoscience.

  • News - Success Stories

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    Trailblazing ERS-2 mission enables climate change applications

    As ESA’s ERS-2 satellite approaches Earth’s atmosphere for reentry, it’s time to reflect on the mission’s great achievements in powering climate-related applications.

  • News - Success Stories

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    ESA missions help to reveal worldwide lake water loss trend

    Climate change, human consumption and sedimentation are depleting more than half of the world’s biggest lakes of water, according to a ground-breaking analysis that drew on three decades of satellite data.

  • News - Data Release news

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    New CryoSat Ice Baseline-E Reprocessed Data – Available now!

    The CryoSat Ice Baseline-E Reprocessing campaign is now complete.

  • News - Success Stories

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    PROBA-V data improve surface albedo products in Africa

    As ESA’s PROBA-V satellite marks its 10-year launch milestone, data tasked during the mission’s lifetime are still being used to assess changes in land cover.

  • News - Thematic area articles

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    Remote sensing data map impacts of natural hazards

    As climate change increases the frequency and severity of natural disasters, remote sensing data can warn about extreme events and help tackle emergency situations.

  • News - Data Release news

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    PROBA-V ‘Collection 2’ - Reprocessed Dataset available

    The improved PROBA-V data (Collection 2) has been released. Data is available via the PROBA-V MEP and Terrascope platforms so users can freely exploit the data using Virtual machines, Jupyter Notebooks, and the new viewing application.

  • 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.

  • News - Success Stories

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    Decades of satellite data reveal the risks of climate tipping points

    Decades-long time series that draw on ESA’s Earth observation archives are enabling scientists to uncover the threat of sudden and potentially irreversible changes to the icy parts of the planet.

  • Event - Conference

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    Living Planet Symposium 2022

    Learn about the 2022 edition of ESA's Living Planet Symposium.

  • Event - Workshop

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    Space and the Arctic 2009 Workshop

    Temperatures in the Arctic are rising at an unprecedented rate. This workshop looked at the needs and challenges of working and living in the rapidly changing Arctic and explore how space-based services might help to meet those needs.

  • Document - General Reference

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    In-action-around-the-world-the-International-Charter-Space-and-Major-Disasters.pdf

    This is an article extracted from the ESA Bulletin Nr.143.

  • Activity - General activities

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    EO Science for Society

    ESA's Earth Observation Science for Society programme aims to promote scientific exploitation of satellite data, forges new scientific discoveries and pioneers new services, stimulating downstream industrial and economic growth.

  • News - Success Stories

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    Using Satellite Data to Predict Floods and Droughts

    Scientists are turning to remote sensing to fill the in-situ data gap in hydrological data models in some parts of the world.

  • Event - Training

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    4th Advanced Training Course in Land Remote Sensing

    ESA organised the 4th Advanced Training Course in Land Remote Sensing which took place in Athens, Greece from 1 to 5 July 2013

  • News - Data Release news

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    2012 CryoSat Ice Baseline D reprocessed data now available

    We're pleased to inform the CryoSat scientific community that the reprocessed CryoSat Ice Baseline D data for all of 2012 has been published on the Science Server and is now available for download.

  • Data - External Data (Restrained)

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    PROBA-V 1 km, 333 m, and 100 m products

    The PROBA-V VEGETATION Raw products and Synthesis products provided coverage of all significant landmasses worldwide with, in the case of a 10-day synthesis product, a minimum effect of cloud cover, resulting from selection of cloud-free acquisitions during the 10-day period. It provided a daily coverage between Latitudes 35°N and 75°N, and between 35°S and 56°S, and a full coverage every two days at the equator. The VEGETATION instrument was pre-programmed with an indefinite repeated sequence of acquisitions. This nominal acquisition scenario allowed a continuous series of identical products to be generated, with the goal to map land cover and vegetation growth across the entire planet every two days. Level Synthesis Resolution resolution (m) Reflectance Level-1C n/a TOA Level-2A n/a 100 m TOA 333 m TOA 1 km TOA Level-3 S1 100 m TOA TOC TOC NDVI 333 m TOA TOC 1 km TOA TOC S5 100 m TOA TOC TOC NDVI S10 333 m TOC TOC NDVI 1 km TOC TOC NDVI Raw Products Overview Product Description Level-1C Level-1C segments (P – product): Radiometrically corrected Level-1B data, in raw sensor geometry (unprojected) Contains: - Top Of Atmosphere reflectance in the four spectral bands - Longitude/latitude information for every pixel - Geometric viewing conditions - Information on the status map (indicating missing and interpolated measurements). Format: HDF5 & GeoTiFF Level-2A Level-2A segment: projected Level-1C (P–product) data, radiometrically and geometrically corrected. Contains: - TOA reflectance values in the four spectral bands without atmospheric correction being performed - Information on the status map (containing identification of radiometric quality, snow, ice, shadow, clouds, land/sea for every pixel) - Geometric viewing conditions Plate carrée projection (EPSG:4326) with spatial resolution of 100 m, 333 m and 1 km Format: HDF5 & GeoTiFF Synthesis Products Overview Level-3 S1 = daily, S5 = 5 days, S10 = decade Different spatial resolution: 100 m, 333 m and 1 km Divided into so called granules, each measuring 10 degrees x 10 degrees, each granule being delivered as a single file Plate carrée projection (EPSG:4326) Format: HDF5 & GeoTiFF Products Content TOA - Top Of Atmosphere reflectance in the four spectral bands (no atmospheric correction applied) - Normalized Difference Vegetation Index (NDVI) -Information on the composite status map (containing identification of snow, ice, shadow, clouds, land/sea for every pixel) - Geometric viewing conditions & date and time of selected measurement TOC Level-2A segment: projected Level-1C (P–product) data, radiometrically and geometrically corrected. Contains: - Top Of Canopy (ground surface) reflectance in the four spectral bands, the atmospheric correction being performed using the SMAC (Simplified Method for Atmospheric Corrections) algorithm - Normalized Difference Vegetation Index (NDVI) - Information on the composite status map (containing identification of snow, ice, shadow, clouds, land/sea for every pixel) Normalized Difference Vegetation Index (NDVI) from Top Of Canopy product (SMAC algorithm for atmospheric corrections applied) - Geometric viewing conditions & date and time of selected measurement TOC NDVI Normalized Difference Vegetation Index (NDVI) from Top Of Canopy product (SMAC algorithm for atmospheric corrections applied)

  • Mission - Earth Watch

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    PROBA-V

    The PROBA-V mission provides multispectral images to study the evolution of the vegetation cover on a daily and global basis.

  • Document - General Reference

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    The International Charter- Space and Major Disasters

    The Charter is an important step forward in linking the needs of disaster and relief organisations with space technology solutions to help mitigate the effects of disaster on human life, property and the environment.

  • Document - Proceedings

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    Dragon Programme Mid-Term Results

    Proceedings of the 2005 Dragon Symposium held on 27 June - 1 July 2005 in Santorini, Greece.