earth online

BROWSE RESULTS BY CATEGORY

All categories

You are currently viewing the newest articles added to the Earth Online portal. Go to other tabs to narrow down your results by specific types of content.
  • warp5-grid.pdf

    SCIRoCCo WARP 5 Grid

  • UTC-SBT time correlation study

    UTC-SBT time correlation study

  • Urban Evolution of Dubai: A Satellite Perspective from 1984 to 2017

    Explore the urban transformation of Dubai through satellite images spanning from 1984 to 2017.

  • Two Years of ERS-1 Data Exploitation

    This bulletin reports on the first two years of the ERS-1 satellite.

  • TropForest - ALOS, GEOSAT-1 & KOMPSAT-2 optical coverages over tropical forests

    The objective of the ESA TropForest project was to create a harmonised geo-database of ready-to-use satellite imagery to support 2010 global forest assessment performed by the Joint Research Centre (JRC) of the European Commission and by the Food and Agriculture Organization (FAO). Assessments for year 2010 were essential for building realistic deforestation benchmark rates at global to regional levels. To reach this objective, the project aimed to create a harmonised ortho-rectified/pre-processed imagery geo-database based on satellite data acquisitions (ALOS AVNIR-2, GEOSAT-1 SLIM6, KOMPSAT-2 MSC) performed during year 2009 and 2010, for the Tropical Latin America (excluding Mexico) and for the Tropical South and Southeast Asia (excluding China), resulting in 1971 sites located at 1° x 1° geographical lat/long intersections. The project finally delivered 1866 sites (94.7% of target) due to cloud coverages too high for missing sites. Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service.

  • Transforming space data into climate action

    ESA’s Earth observation activities are playing a key role in the revitalised global drive to combat climate change.

  • Third Party Missions, Cat-1 Data Availability

    This brochure gives a quick overview on the availability of the Third Party Missions IRS-P3, JERS-1, NIMBUS, Proba, Landsat, KOMPSAT-1, SCISAT-1, Terra/Aqua, NOAA, QSCAT, OrbView, SPOT-1,-2,-3,-4, ALOS.

  • The-Calibration-of-the-ERS-1-Radar-Altimeter.pdf

    This report describes the calibration of ERS-1's Radar Altimeter during the commissioning phase, which used Venice as a basis for calibration.

  • The Earth from ALOS - New Perspectives from Space including 3D

    This brochure gives an example of the ALOS spectacular scenes, 3D pictures and general info on the satellite applications.

  • The contribution of the European Space Agency to the ALOS PRISM- AVNIR-2 commissioning phase

    This paper was presented at IGARSS 2007 (23-27 July 2007 - Barcelona, Spain). It summarizes the strategy that ESA adopted to define and implement a data verification plan for mission operated by foreign nations, classified as so called ESA Third Party Missions.

  • Technical-Note-on-Data-Flows-and-Volumes-between-ISS-and-Other-Entities-of-the-ERS-1-Ground-Segment.pdf

    This document lists all the messages exchanged between the Interface Subset (ISS) and the other entities of the ERS-1 Ground Segment.

  • Taking-the-Measure-of-Earth-Fifteen-Years-of-Progress-in-Radar-Altimetry.pdf

    This article is extracted from ESA Bulletin Nr. 128.

  • SSF-ERS-PM2.pdf

    Surface State Flag from ERS data

  • SNAP

    SNAP is a common architecture for all Sentinel Toolboxes. It is ideal for Earth observation processing and analysis.

  • Showcasing Fundamental Data Records for Altimetry

    ESA has developed a comprehensive suite of Earth system data records as part of the Fundamental Data Records for Altimetry (FDR4ALT) project.

  • Sentinel-3 Toolbox

    The Toolbox consists of a set of visualisation, analysis and processing tools for the exploitation of OLCI and SLSTR data.

  • Sea Ice Thematic Data Product [ALT_TDP_SI]

    This is the Sea Ice Thematic Data Product (TDP) V1 resulting from the ESA FDR4ALT project and containing the sea ice related geophysical parameters, along with associated uncertainties: snow depth, radar and sea-ice freeboard, sea ice thickness and concentration. The collection covers data for the ERS-1, ERS-2 and Envisat missions, and bases on Level 1 data coming from previous reprocessing (ERS REAPER and the Envisat V3.0) but taking into account the improvements made at Level 0/Level 1 in the frame of FDR4ALT (ALT FDR). The Sea Ice TDP provides data from the northern or southern hemisphere in two files corresponding to the Arctic and Antarctic regions respectively for the winter periods only, i.e., October to June for the Arctic, and May to November for the Antarctic. For many aspects, the Sea Ice TDP is very innovative: First time series of sea-ice thickness estimates for ERS Homogeneous calibration, allowing the first Arctic radar freeboard time series from ERS-1 (1991) to CryoSat-2 (2021) Uncertainties estimated along-track with a bottom-up approach based on dominant sources ERS pulse blurring error corrected using literature procedure [Peacock, 2004] The FDR4ALT products are available in NetCDF format. Free standard tools for reading NetCDF data can be used. Information for expert altimetry users is also available in a dedicated NetCDF group within the products. Please consult the FDR4ALT Product User Guide before using the data. The FDR4ALT datasets represent the new reference data for the ERS/Envisat altimetry missions, superseding any previous mission data. Users are strongly encouraged to make use of these datasets for optimal results.