earth online
  • All Categories (270)
  • Data (12)
  • News (11)
  • Missions (1)
  • Events (9)
  • Tools (2)
  • Activities (3)
  • Documents (232)
  • 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.

  • Document - General Reference

    prompt photo

    The Nine Candidate Earth Explorer Missions - Topography Mission

    This report for assessment addresses the Topography mission when it was selected with other nine Earth Explorer missions as a potential candidate for Phase A study.

  • Document - General Reference

    prompt photo

    The ATSR Instrument

  • 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

    SMOS-ESAs-Water-Mission-Fact-sheet.pdf

    This document provided a series of information on the SMOS mission.

  • Document - General Reference

    prompt photo

    Sentinel-1-The-Radar-Mission-for-GMES-Land-and-Sea-Services.pdf

    This article is extracted from ESA Bulletin Nr. 131.

  • 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.

  • Activity - Quality

    SCIRoCCo

    The SCIRoCCo project is an interdisciplinary cooperation of scatterometry experts aimed at promoting the continuing exploitation of ESA's unique 20 years' worth of ERS Scatterometer data.

  • News - Thematic area articles

    prompt photo

    Satellites reveal changes to Earth’s icy zones

    ESA’s Earth observation activities are helping scientists investigate the influence of climate change on widespread ice-losses across the planet.

  • News - General News

    prompt photo

    Satellite Radar Altimetry: past and future

    Satellite radar altimetry measurements yield a wealth of information that can be used for a wide range of applications.

  • News - Thematic area articles

    prompt photo

    Satellite data central to ocean monitoring

    Over 95% of Earth’s water is found in our oceans, and yet sadly, oceans are under stress from climate change and pollution. Monitoring our oceans is vital for Earth’s survival and satellites are the primary means of long-term and independent observation of our vast ocean bodies and their associated coastal zones.

  • Document - General Reference

    prompt photo

    Remote-Sensing-and-marine-ecology.pdf

    This volume collects the lecture notes of the training course on Marine Remote Sensing and its applications, held on 15-26 June 1998 at ESA ESRIN, Frascati, Italy. The lectures were held in italian: the book is available in italian only.

  • Activity - Quality

    REAPER

    The REAPER (REprocessing of Altimeter Products for ERS) project covers both the ERS-1 and the ERS-2 altimetry missions. The project aims to support and maintain data quality.

  • Document - Proceedings

    prompt photo

    PolInSAR-2007-Proceedings-of-the-3rd-International-Workshop-on-Science-and-Applications-of-SAR-Polarimetry-and-Polarimetric-Interferometry.pdf

    Proceedings of PolInSAR 2007 held in Frascati, Italy on from 22-26 January 2007.