earth online
  • All Categories (341)
  • Data (13)
  • News (15)
  • Missions (2)
  • Events (11)
  • Tools (3)
  • Activities (5)
  • Documents (292)
  • Document - General Reference

    prompt photo

    warp5-grid.pdf

    SCIRoCCo WARP 5 Grid

  • Document - Technical Note

    prompt photo

    UTC-SBT time correlation study

    UTC-SBT time correlation study

  • Document - General Reference

    prompt photo

    Two Years of ERS-1 Data Exploitation

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

  • News - Thematic area articles

    prompt photo

    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.

  • Document - Product Cal/Val Plan/Report

    prompt photo

    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.

  • Data - Campaigns (Open)

    prompt photo

    TerraSARSIM

    The objectives of the TerraSAR SIM project were to quantify the impact of the time intervals between SAR acquisitions at different wavelengths on agricultural applications.

  • News - Data Release news

    prompt photo

    TerraSAR-X/TanDEM-X WorldDEM data now available to users

    WorldDEM products have been added to the TerraSAR-X/TanDEM-X offering and are now available to users for research and application development following submission of a project proposal subject to evaluation and acceptance by ESA and the data owner.

  • News - Data Release news

    prompt photo

    TerraSAR-X ESA archive dataset now available

    TerraSAR-X and TanDEM-X products are available to the scientific community.

  • Mission - Third Party Missions

    prompt photo

    TerraSAR-X and TanDEM-X

    The TerraSAR-X and TanDEM-X satellites feature a unique geometric accuracy that is unmatched by any other spaceborne sensor.

  • Document - Technical Note

    prompt photo

    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.

  • Document - General Reference

    prompt photo

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

    This article is extracted from ESA Bulletin Nr. 128.

  • Document - General Reference

    prompt photo

    SSF-ERS-PM2.pdf

    Surface State Flag from ERS data

  • Document - User Guide

    prompt photo

    SNAP-ICEYE-user-guide.pdf

    This document describes how to use ICEYE SLC and GRD SAR data in the SNAP toolbox.

  • Document - Proceedings

    prompt photo

    SEASAR-2012-sessions-summaries-seed-questions-recommendations.pdf

    This document gathers together the sessions summaries with seed questions discussion and recommendations of the SEASAR 2012 workshop.

  • Event - Workshop

    prompt photo

    SEASAR 2012

    The European Space Agency and the Norwegian Space Centre jointly organised the fourth SAR oceanography workshop, 'SEASAR 2012', entitled 'Advances in SAR Oceanography'.

  • Data - EO Sign In Authentication (Open)

    prompt photo

    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.

  • Document - General Reference

    prompt photo

    scirocco-pvr.pdf

    SCIRoCCo Product Validation Report (PVR