Event - Training

2nd Advanced Training Course on Ocean Remote Sensing 2009

This advanced training course focused on ocean remote sensing theory and applications.

Event - Training

Advanced Training Course in Ocean Remote Sensing 2011

Within the framework of the Dragon Programme, a joint collaboration between the European Space Agency (ESA) and the Chinese Ministry of Science and Technology (MOST), ESA and NRSCC are providing a series of advanced thematic training courses on remote sensing applications hosted by university and research institutions in P.R. China.

Document - User Guide

Envisat and ERS Missions Data Access Guide

The purpose of this document is to help users identify the various types of data that are available from the ENVISAT, ERS-1 and ERS-2 Earth observing satellites, the kind of applications that the data may be used for and, importantly, the practical procedures required for access - including user registration and then search, selection and retrieval or ordering of the data of interest.

Mission - Heritage Missions

ERS

The ERS programme was composed of two missions, ERS-1 and ERS-2, which together observed the Earth for 20 years, from 1991 to 2011.

News - Success Stories

ERS Heritage Data allow for 30 years of science

At their time of launch thirty years ago, the two ERS satellites were the most sophisticated Earth observation spacecraft ever developed and launched by Europe.

News - Success Stories

ERS' Contribution to Altimetry

Satellite radar altimetry missions have transformed the way we see Earth and its oceans. Using the ranging capability of radars, they measure the surface topography profile along a satellite’s track.

Document - Product Cal/Val Plan/Report

ERS-1 Wind and Wave Calibration Workshop

Data - Data Service Request (Restrained)

ERS-1/2 SAR IM L0 [SAR_IM__0P]

This SAR Level 0 product is acquired in Image Mode. The products consist of the SAR telemetry data and are supplied as standard scenes. It also contains all the required auxiliary data necessary for data processing. The product serves two main purposes: For testing ERS SAR processors independently from the HDDR system For users interested in full SAR data processing. Product characteristics: Scene area: 100 km (range - across track) x full segment length (azimuth - along track) Scene size: 5616 samples (range) x full segment length (azimuth) Pixel depth: 10 bits signed integer (5 bits I, 5 bits Q) Projection: Slant range.

Data - EO Sign In Authentication (Open)

ERS-1/2 SAR IM Medium Resolution L1 [SAR_IMM_1P]

This ERS Medium Resolution stripline product is generated from the Image Mode Level 0 Product. Stripline image products contain image data for an entire segment, up to a maximum size of 10 minutes per product for IM mode. The processor concatenates together several sub-images called "slices" that were processed separately on a dataset-by-dataset basis in order to form the entire stripline image. The product is processed to an approximately 150 m x 150 m resolution and has a radiometric resolution that is good enough for ice applications. This product has a lower spatial resolution than the SAR_IMP_1P and SAR_IMS_1P products. Product Characteristics: Pixel size: 5 m (ground range – across track) x 75 m (azimuth – along track) Scene area: 100 km (range) x at least 102.5 km Scene Size: 1300 pixels (range) x at least 1350 lines (azimuth) Pixel depth: 16 bits unsigned integer- Total product volume: at least 3.5 MB Projection: Ground-range Number of looks: 8 (azimuth) x 7 (range).

Data - EO Sign In Authentication (Open)

ERS-1/2 SAR IM Precision L1 [SAR_IMP_1P]

The SAR Precision product is a multi-look (speckle-reduced), ground range image acquired in Image Mode. This product type is most applicable to users interested in remote sensing applications, but is also suitable for calibration purposes. The products are calibrated and corrected for the SAR antenna pattern and range-spreading loss. Radar backscatter can be derived from the products for geophysical modelling, but no correction is applied for terrain-induced radiometric effects. The images are not geocoded, and terrain distortion (foreshortening and layover) has not been removed. The numbering sequence relates to the satellite position and therefore differs between Ascending and Descending scenes. Product characteristics: Pixel size: 12.5 m (range - across track) x 12.5 m (azimuth - along track) Scene area: 100 km (range) x at least 102.5 km (azimuth) Scene size: 8000 pixels range x at least 8200 lines (azimuth) Pixel depth: 16 bits unsigned integer Total product volume: 125 MB Projection: Ground-range Number of looks: 3.

Data - EO Sign In Authentication (Open)

ERS-1/2 SAR IM Single Look Complex L1 [SAR_IMS_1P]

The SAR SLC product is a single look complex acquired in Image Mode. It is a digital image, with slant range and phase preserved, generated from raw SAR data using up-to-date auxiliary parameters. The products are intended for use in SAR quality assessment, calibration and interferometric applications. A minimum number of corrections and interpolations are performed on the data. Absolute calibration parameters (when available) are provided in the product annotation. Product characteristics: Pixel size: 8 m (range - across track) x 4 m (azimuth - along track – varying slightly depending on acquisition Pulse Repetition Frequency) Scene area: 100 km (range) x at least 102.5 km (azimuth) Scene size: 5000 samples (range) x at least 30000 lines (azimuth) Pixel depth: 32 bits signed integer (16 bits I, 16 bits Q) Total product volume: 575 MB Projection: Slant range- Number of looks: 1.

Document - Proceedings

ERS-Envisat-symposium-proceedings.pdf

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

Document - Product Specifications

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

ERS-products-specification-with-Envisat-format

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.

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.

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.

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 - 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.

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 - 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