earth online
  • All Categories (54)
  • Data (15)
  • News (11)
  • Missions (3)
  • Events (11)
  • Tools (2)
  • Activities (6)
  • Campaigns (3)
  • Documents (3)
  • News - Success Stories

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    10 years of Envisat data help to illuminate ocean processes

    A decade after Envisat beamed its final image to the planet, the pioneering ESA mission is continuing to foster improved understanding of Earth’s systems.

  • Event - Conference

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    15 Years of Progress in Radar Altimetry Symposium

    A Symposium on "15 Years of Progress in Radar Altimetry" and the annual meeting of the Ocean Surface Topography Science Team, the International Doris Service Workshop and the ARGO Workshop.

  • Event - Meeting

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    20th GHRSST Science Team Meeting

    The 20th GHRSST International Science Team meeting in 2019 brought together sea surface temperature experts to look at future innovations.

  • Event - Training

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    2nd Advanced Training Course on Ocean Remote Sensing 2009

    This advanced training course focused on ocean remote sensing theory and applications.

  • Event - Conference

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    3rd ERS Symposium

    The ESA Directorate for Observation of the Earth and its Environment held the 3rd ERS Symposium, in 1997, where many of the results from the ERS-1 and ERS-2 missions were presented and discussed by the scientific community.

  • Document - Technical Note

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    AATSR-Latitude-Dependent-Bias-Correction.pdf

    This document contains calibration information for the Sea Surface Temperature readings from the AATSR instrument on Envisat.

  • Event - Training

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    Advanced Training Course on Ocean Remote Sensing 2006

    The objective of the course was to provide first-hand information on a broad range of ocean research topics including key principles of SAR, Radar Altimetry, Ocean Colour and Sea Surface Temperature measurements, processing algorithms, data products and their use in oceanographic applications.

  • Mission - Earth Explorers

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    Aeolus

    The Aeolus mission which was launched into space on 22 August 2018 and was retired on 30 April 2023, provided global observations of wind profiles from space to improve the quality of weather forecasts, and to advance our understanding of atmospheric dynamics and climate processes.

  • Tools - Processing

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    Aeolus VRE

    The Aeolus Virtual Research Environment (VRE) is the latest extension to the VirES for Aeolus service, which offers more direct and in-depth data exploitation of the Aeolus mission. The VRE is a cloud service that provides a web-based development environment in the form of a JupyterLab workspace.

  • Event - Workshop

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    Applications of the ERS Along Track Scanning Radiometer Workshop 1999

    The workshop on ERS mission's Along Track Scanning Radiometer (ATSR) instrument gathered researchers and specialists working on different applications of the mission.

  • Data - EO Sign In Authentication (Open)

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    AVHRR Level-1B Local Area Coverage Imagery

    This collection is composed of AVHRR L1B products (1.1 km) reprocessed from the NOAA POES and Metop AVHRR sensors data acquired at the University of Dundee and University of Bern ground stations and from the ESA and University of Bern data historical archive. The product format is the NOAA AVHRR Level 1B that combines the AVHRR data from the HRPT stream with ancillary information like Earth location and calibration data which can be applied by the user. Other appended parameters are time codes, quality indicators, solar and satellite angles and telemetry. Two data collections cover Europe and the neighbouring regions in the period of 1 January 1981 to 31 December 2020 and the acquired data in the context of the 1-KM project in the ‘90s. During the early 1990’s various groups, including the International Geosphere-Biosphere Programme (IGBP), the Commission of the European Communities (CEC), the Moderate Resolution Imaging Spectrometer (MODIS) Science Team and ESA concluded that a global land 1 KM AVHRR data set would have been crucial to study and develop algorithms for several land products for the Earth Observing System. USGS, NOAA, ESA and other non-U.S. AVHRR receiving stations endorsed the initiative to collect a global land 1-km multi-temporal AVHRR data set over all land surfaces using NOAA's TIROS "afternoon" polar-orbiting satellite. On 1 April 1992, the project officially began up to the end of 1999 with the utilisation of 23 stations worldwide plus the NOAA local area coverage (LAC) on-board recorders. The global land 1-km AVHRR dataset is composed of 5 channels, raw AVHRR dataset at 1.1 km resolution from the NOAA-11 and NOAA-14 satellites covering land surfaces, inland water and coastal areas. Global Land 1 km AVHRR Data Set Project HRPT Ground Station Network (as of 1 April 1992) and Acquisition Areas for LAC Recorded Data Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service: AVHRR L1B 1.1 KM AVHRR L1B LAC Out-of-Europe.

  • Document - Product Handbook

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    AVHRR-Handbook.pdf

    The AVHRR user handbook provides details about the content of the consolidated and harmonised data set archived at ESA facilities.

  • Campaign

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    C-MAPExp

    The C‐MAPExp campaign was planned and executed to support the demonstration of CarbonSat capabilities.

  • Campaign

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    CHARADMexp

    The ESA CHARADMExp campaign focuses on marine and marine-dust aerosol mixture characterisation.

  • News - Success Stories

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    COVID-19: Aeolus and weather forecasts

    The drop in commercial flights has led to fewer measurements for weather forecasts, but fortunately, ESA’s Aeolus satellite mission is helping to fill the gap.

  • Campaign

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    DESIREX 2008

    DESIREX 2008 (Dual-use European Security IR Experiment 2008) was conceived as an experimental campaign in the city of Madrid (Spain).

  • News - Success Stories

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    Drones join the campaign to validate Aeolus data

    In June and September 2022, the Askos component of the Joint Aeolus Tropical Atlantic Campaign (JATAC), organised by ESA and its international partners, was expanded with new ground-based, drone and radiosonde measurements. The main objective of this campaign was to calibrate and validate Aeolus satellite observations.

  • News - Success Stories

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    Dust aerosol campaign validates Aeolus data

    Prepared, implemented and executed by a consortium of French universities and research institutions, under the umbrella of the French Space Agency (CNES) and the French National Centre for Scientific Research (CNRS), the Clouds-Atmospheric Dynamics–Dust Interactions in West Africa (CADDIWA) campaign took place on Sal Island in Cape Verde, from 6 to 25 September 2021.

  • Mission - Heritage Missions

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    Envisat

    Envisat was ESA's successor to ERS. Envisat carried ten instruments aboard for a wide range of Earth observing fields. The mission was operational from 2002 to 2012.

  • Data - EO Sign In Authentication (Open)

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    Envisat AATSR L1B Brightness Temperature/Radiance [ENV_AT_1_RBT]

    - AATSR Full Resolution land and ocean cover image of the Iberian Peninsula from 28 October 2006 AATSR Full Resolution land cover image of the Iberian Peninsula from 28 October 2006. The Envisat AATSR Level 1B Brightness Temperature/Radiance product (RBT) contains top of atmosphere (TOA) brightness temperature (BT) values for the infra-red channels and radiance values for the visible channels, on a 1-km pixel grid. Values for each channel and for the nadir and oblique views occupy separate NetCDF files within the Sentinel-SAFE format, along with associated uncertainty estimates. Additional files contain cloud flags, land and water masks, and confidence flags for each image pixel, as well as instrument and ancillary meteorological information. This AATSR product [ENV_AT_1_RBT] in NetCDF format stemming from the 4th AATSR reprocessing, is a continuation of ERS ATSR data and a precursor of Sentinel-3 SLSTR data. It has replaced the former L1B product [ATS_TOA_1P] in Envisat format from the 3rd reprocessing. Users with Envisat-format products are recommended to move to the new Sentinel-SAFE like/NetCDF format products. The 4th reprocessing of Envisat AATSR data was completed in 2022; the processing updates that have been put in place and the expected scientific improvements have been outlined in full in the User Documentation for (A)ATSR 4th Reprocessing Products.