News - Data Release news

Updated Precise Orbit data (POD) for the full ERS-1 and ERS-2 mission available

The Precise Orbit files (ERS.ORB.POD) for the entire ERS-1 and ERS-2 mission periods have been reprocessed with up-to-date standards.

News - Thematic area articles

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.

News - Success Stories

Trailblazing ERS-2 mission enables climate change applications

As ESA’s ERS-2 satellite approaches Earth’s atmosphere for reentry, it’s time to reflect on the mission’s great achievements in powering climate-related applications.

Document - Technical Note

The SeaSat-A Synthetic Aperture Radar System

The SeaSat-A synthetic aperture radar imaging radar system (SAR) was the first imaging radar system used as a scientific instrument from Earth orbit. The system generated continuous radar imagery with a 100 km swath at a resolution of 25 m from an 800 km altitude orbit. The imagery is a pictorial representation of the radar backscatter of the Earth's surface in a map-like representation.

Event - Workshop

Space and the Arctic 2009 Workshop

Temperatures in the Arctic are rising at an unprecedented rate. This workshop looked at the needs and challenges of working and living in the rapidly changing Arctic and explore how space-based services might help to meet those needs.

News - Infographics

Showcasing success stories from ESA's Heritage Missions

Find out how ESA's Heritage Space Programme data continue to help, even decades after they finished operations, in our latest infographic.

Activity - Quality

SEOM CAWA

The Advanced Clouds, Aerosols and WAter vapour products for Sentinel-3/OLCI project aims to develop and improve the advanced atmospheric retrieval algorithms developed for MERIS and OLCI instruments.

Document - General Reference

SeaSat views Oceans and Sea Ice with Synthetic Aperture Radar

Data - EO Sign In Authentication (Open)

SeaSat ESA archive

This collection gives access to the complete SEASAT dataset acquired by ESA and mainly covers Europe. The dataset comprises some of the first ever SAR data recorded for scientific purposes, reprocessed with the most recent processor. The Level-1 products are available as: SAR Precision Image [SEA_PRI_1P] SAR Single Look Complex Image [SEA_SLC_1P] SAR Ellipsoid Geocoded Precision Image [SEA_GEC_1P] Spatial coverage: Check the spatial coverage of the collection on a map available on the Third Party Missions Dissemination Service.

Mission - Heritage Missions

Seasat

On board Seasat was the first-ever space-borne synthetic aperture radar (SAR) system for science applications.

Event - Workshop

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'.

Event - Workshop

SEASAR 2006

ESA organised it's first SAR oceanography workshop, SEASAR 2006, entitled "Advances in SAR Oceanography from Envisat and ERS missions"

Data - EO Sign In Authentication (Open)

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

Satellites investigate Earth’s terrestrial hydrosphere

ESA’s Earth observation satellites are playing a leading role in furthering our understanding of how Earth’s water cycle is being influenced by humankind.

News - General News

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.

Document - Product Handbook

SAR Tropical Oceanic Phenomena Handbook

ERS SAR Tropical Oceanic Phenomena Handbook.

Document - Product Handbook

SAR Tropical Atmospheric Phenomena Handbook

ERS SAR Tropical Atmospheric Phenomena Handbook.

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.

Tools - Other

Polar TEP

The Polar Thematic Exploitation Platform (TEP) enables access, processing, uploading, visualisation, manipulation and comparison of data over the polar regions.