earth online
  • All Categories (45)
  • Data (7)
  • News (15)
  • Missions (1)
  • Events (9)
  • Tools (1)
  • Campaigns (9)
  • Documents (3)
  • Event - Meeting

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    Fluorescence (FLEX) 2019

    The FLEX 2019 meeting consisted of a series of events addressing remote sensing of vegetation fluorescence.

  • Campaign

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    FLEX-US

    The primary goal of the 2013 joint ESA/NASA airborne campaign was to record an unprecedented FLEX-like dataset containing maps of sun-induced fluorescence, hyperspectral reflectance, surface temperature, and canopy structure.

  • Campaign

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    HYFLEX

    This HYFLEX campaign aimed to deliver maps of sun-induced fluorescence recorded from airborne measurements using the approaches of the spaceborne FLEX 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.

  • Campaign

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    CEFLES2

    The objective of the CEFLES2 campaigns was to provide key reference data and background knowledge for the preparatory phases of the Sentinel‐2 and FLEX missions.

  • Data - Campaigns (Open)

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    PhotoProxy 2019

    The Photosynthetic-Proxy Experiment campaign address relevant open aspects that are related to the quantitative assessment of vegetation photosynthesis and vegetation stress from space.

  • Data - Campaigns (Open)

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    HYFLEX

    This HYFLEX campaign aimed to deliver maps of sun-induced fluorescence recorded from airborne measurements using the approaches of the spaceborne FLEX mission.

  • Data - Campaigns (Open)

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    FLEXSense 2019

    The FLEXSense 2019 campaign activities were undertaken in Germany and Italy with the goal of providing a complete set of high-resolution experimental data, including all relevant elements required for the preparation of the FLEX satellite mission.

  • Data - Campaigns (Open)

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    FLEXSense 2018

    The 2018 Fluorescence Explorer Sense (FLEXSense) campaign combined various field activities in preparation for the FLEX satellite mission.

  • Data - Campaigns (Open)

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    FLEX-US

    The primary goal of the 2013 joint ESA/NASA airborne campaign was to record an unprecedented FLEX-like dataset containing maps of sun-induced fluorescence, hyperspectral reflectance, surface temperature, and canopy structure.

  • Data - Campaigns (Open)

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    FLEX EU 2014

    The FLEX-EU Campaign was carried out in 2014 over an agricultural area around Jülich, Germany, Latisana, Italy and forest sites in Czech Republic

  • 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.

  • 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)

  • News - Infographics

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    PROBA-V - ESA's vegetation monitoring mission

    ESA's vegetation-monitoring mission - Proba-V - will end operations in June 2020 after seven years.

  • Document - General Reference

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    PROBA-V-QWG-10-Report-Summary.pdf

    This report provides a summary of PROBA-V QWG meeting 10.

  • Event - Meeting

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    PROBA-V QWG meeting 10

    The 10th PROBA-V Quality Working Group (QWG) meeting took place in Antwerp, Belgium on 23 and 24 October 2019.

  • Event - Meeting

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    PROBA-V QWG meeting 9

    The 9th Proba-V QWG took place in Brussels on 17th - 18th Apr, 2019.

  • Event - Meeting

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    PROBA-V QWG meeting 11

    The PROBA-V QWG meeting 11 took place from 25 to 26 June 2020.

  • News - Operational News

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    New experimental phase for PROBA-V

    PROBA-V has begun a new experimental phase that will continue through to October 2021.

  • Campaign

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    FLEX EU 2014

    The FLEX-EU Campaign was carried out in 2014 over an agricultural area around Jülich, Germany, Latisana, Italy and forest sites in Czech Republic