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Envisat RA-2 Sensor and Geophysical Data Record - SGDR [RA2_MWS__2P]

How To Access Data

Fast Registration with Immediate Access (Open)

  1. Go to the ESA User Services Portal
  2. Register or log in to EO Sign In
  3. Submit the form for accessing the data
  4. You will receive an email with your user name
  5. A second email will follow with your password to download the data from the ra-ftp-ds.eo.esa.int ftp server via an FTP client (see Read More for connection details) or, alternatively, from command line using L-FTP.
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The data can be downloaded via an FTP client (e.g., FileZilla or WinSCP) using the options "explicit FTP over TLS if available" or "Require explicit FTP over TLS".

See Envisat RA-2/MWR products availability table.

For further information about the EO Sign In Service you can visit TellUs.

Should you need support to access the data, please contact EOHelp.

Description

This is a RA-2 Sensor and Geophysical Data Record (SGDR) Full Mission Reprocessing (FMR) V3 product. This FMR follows the first Envisat Altimetry reprocessing Version (V2.1) completed in 2012.

The GDR and S-GDR data products were reprocessed for all cycles from 6 to 113 (May 2002 to April 2012) into a homogeneous standard in NetCDF format (close to Sentinel-3).

The Sensor Data Record (SGDR) Product from RA-2/MWR includes the data in the GDR product (RA-2 geophysical data, MWR data) and also RA-2 averaged waveforms (18Hz) and RA-2 individual waveforms (1800Hz). This product is a continuation of ERS RA data.

This data product has a coverage of 1 pass and pole to pole, a spatial sampling of about 390 m along track and a size of 31 to 40 MB, depending on presence of individual waveforms.

The radiometric accuracy is 0.2 dB and auxiliary data include: Orbit state vectors (DORIS, FOS), RA2 and MWR characterisation data, Platform attitude, Gain calibration, USO frequency, ECMWF data, time relation, leap second, Ionospheric corrections, geoid, mean sea surface, slope data, and tide model (ocean, earth, loading, pole).

Please consult the Envisat RA-2/MWR Product Quality Readme file before using the data.

Details

DATA SET SPECIFICATIONS

Digital Object Identifier (DOI):
Spatial coverage:
90 N, -90 S, -180 W, 180 E
Temporal coverage:
2002-05-14 - 2012-04-08
Date of launch:
2002-03-01
Operators:
ESA
Mission status:
Completed
Orbit height:
800 km
Orbit type:
Sun-synchronous
Swath width:
5 - 1150 km

PROCESSING LEVEL

Level 2

APPLICABLE TERMS & CONDITIONS

Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions.

READ T&C

DATA CITATION

European Space Agency, 2018, RA-2 Sensor and Geophysical Data Record - SGDR. Version 3.0.

RESOURCES

Product Information

Envisat RA-2 MWR Sensor Performance, Products and Algorithms

Product Information

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User Manual

RA-2 Product Handbook

User Manual

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Product Specifications

RA-2 Product Specifications

Product Specifications

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Product Specifications

ReadMe file

Product Specifications

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Technical Note

Envisat Altimetry Error Budget

Technical Note

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Tools

RA-2 Software Tools

Tools

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ESA Earth Observation User Services Portal

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