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.

Tools - Analysis

SNAP

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

Tools - Analysis

Sentinel-1 Toolbox

The Toolbox consists of: processing tools, data product readers and writers and a display and analysis application to support the archive of SAR data from ESA and 3rd party missions.

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.

Document - General Reference

SCI-GLS-14-0001-v01-Scatterometry-Glossary-1.2.pdf

The Scatterometry Glossary defines the commonly agreed terminology to use in all the documents generated by the SCIRoCCo Consortium.

Document - Product Document

Review-impact-ERS-2-Piloting-Modes-SAR-Doppler-Stability26-miranda.pdf

This document is a review of the impact of ERS-2 piloting modes on the SAR doppler stability

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.

News - How to guides

Quick guide to Data Service Request submission

Follow this quick guide to learn how to submit a Data Service Request, which is required when applying for level zero (A)SAR data from ESA's European Remote Sensing satellites (ERS) and the Envisat mission.

News - Data Release news

New reprocessing of datasets celebrates 30 years of ERS

The ERS programme celebrated its 30th anniversary on 17 July. Today, we are still exploiting ERS data and experts continue to work on improving the altimeter, radiometer and SAR data the programme acquired.

News - Success Stories

How Envisat helped to shape global understanding of Earth’s systems

Twenty years have passed since a ground-breaking European spacecraft designed to deliver unprecedented insight into the planet’s changing environment was lofted into orbit.

Tools - Apps

Heritage Missions app for iOS

Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.

Tools - Apps

Heritage Missions app for Android

Download the Heritage Missions application to discover what the missions were about, how it worked and what the elements of the space and ground segment that make these missions unique.

Activity - General activities

GSCB and LTDP

The Copernicus programme is based on a fleet of European Earth observation satellites, built and operated by ESA, member states and commercial entities. Copernicus will also offer data from non-European satellites.

Document - Product Readme Note

ERS-WS-SoilMoisture-Readme-ESA-EOPG-EBA-TN-2-issue1.0.pdf

Readme file for ERS-2 Scatterometer Soil Moisture Products

Document - Product Document

ERS-SAR-Calibration-Issue2.f_05_DLFE-643.pdf

The scope of this technical note is to describe the derivation of the radar backscattering coefficient σo in ERS-1 and ERS-2 SAR PRI data products generated by ESA.

Document - Product Specifications

ERS-products-specification-with-Envisat-format.pdf

ERS-products-specification-with-Envisat-format

Document - Proceedings

ERS-Envisat-symposium-proceedings.pdf

This document contains the proceedings of the ERS-Envisat Symposium, which took place in 2000.

Document - Proceedings

ERS-Envisat Symposium

Data - Fast Registration with immediate access (Open)

ERS-1/2 SCATTEROMETER Ocean Wind field and Sea Ice probability [ASPS20.H/ASPS20.N]

The ASPS Level 2 products contain, for each node: the radar backscattering sigma nought for the three beams of the instrument, the four aliased wind solutions (Rank 1-4 wind vector) and the de-aliased wind vector flag, the sea-ice probability and sea-ice flag, the YAW quality flag. The wind retrieval is performed with the CMOD5N geophysical model function derived by ECMWF to compute the neutral winds rather than 10 m winds. ASPS L2.0 High resolution products are provided with a spatial resolution of 25x25 km and a grid spacing of 12.5 km. ASPS L2.0 Nominal resolution products are provided with a spatial resolution of 50x50 km and a grid spacing of 25 km. One product covers one orbit from ascending node crossing. Please consult the Product Quality Readme file before using the ERS ASPS data.

Data - Fast Registration with immediate access (Open)

ERS-1/2 SCATTEROMETER Nominal Resolution back-scattering measurements, Ocean Wind field [UWI]

The ERS data reprocessed with the ASPS facility is also available in the UWI format to maintain the compatibility with the FD (Fast Delivery) products. The ASPS UWI product is organised in frames of 500 x 500 km providing the radar backscattering sigma nought for the three beams of the instrument plus the wind speed and direction. The wind retrieval is performed with the CMOD5N geophysical model function derived by ECMWF to compute the neutral winds rather than 10m winds. ASPS UWI products are provided with a spatial resolution of 50 x 50 km and a grid spacing of 25 km. One product covers one orbit from ascending node crossing. Please consult the Product Quality Readme file before using the ERS ASPS data.