European Space Agency

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Thematic areas:
Sentinel-3 L2 SRAL WAT Collection

The collection consists of all Sentinel-3 SRAL Level 2 WAT products covering whole observation area (global) since 2017-01-02. The SRAL instrument comprises one nadir-looking antenna, externally mounted on the satellite's +Zs Earth panel, and a central electronic chain composed of a Digital Processing Unit (DPU) and a Radio Frequency Unit (RFU). The central electronic chain is mounted inside the satellite on the -Ys panel in a cold redundant configuration.

The main frequency used for range measurements is the Ku-band (13.575 GHz, bandwidth 350 MHz), while the C-band frequency (5.41 GHz, bandwidth 320 MHz) is used for ionospheric correction.

The SRAL instrument includes measurement, calibration and support modes. The measurement modes are composed of two radar modes combined with two tracking modes.

Technical Specifications:
Sentinel-3 Product Data Format Specification - SRAL/MWR Level 2 Land products (S3IPF.PDS.003.2)
Contributing Missions:
Product Type:
SENTINEL-3 Ku/C Radar Altimeter

Applicable T&C
Contributing Missions Sentinel-3
Data Browser (View)
File access path /eodata/Sentinel-3/SRAL/SR_2_WAT/
Finder product search
INSPIRE Metadata search
ProcessingLevel 2
Resolution 1 Hz, 20 Hz
S3 path s3://DIAS/SRAL/SR_2_WAT/
SPARQL client
SPARQL endpoint
Satellite Sentinel-3
Sensor SRAL
Spatial Coverage 180W, 180E, 90S, 90N
Temporal Coverage 02/01/2017 - now
Last Updated December 19, 2018, 10:55 (CET)
Created May 9, 2018, 11:09 (CEST)