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 - Proceedings

ERS-Envisat-symposium-proceedings.pdf

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

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 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

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.

News - Data Release news

ERS-1 Scatterometer L2 dataset processed with ASPS v10.04 is available online

The reprocessed dataset together with corresponding ERS-2 data is now available.

Document - Product Cal/Val Plan/Report

ERS-1 Wind and Wave Calibration Workshop

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.

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 - Analysis

SNAP

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

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.

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.

Document - Product Specifications

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

ERS-products-specification-with-Envisat-format

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.

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.

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 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.