Sentinel 1A C-band Synthetic Aperture Radar (SAR): Interferometric Wide (IW) mode Ocean (OCN) Level 2 data, Instrument Processing Facility (IPF) v3

This dataset contains level-2 Interferometric Wide swath (IW) Ocean (OCN) C-band Synthetic Aperture Radar (SAR) data from the European Space Agency (ESA) Sentinel 1A satellite. Level-2 data consists of geolocated geophysical products derived from Level-1. Sentinel 1A was launched on 3rd April 2014 and provides continuous all-weather, day and night imaging radar data. The IW mode is the main operational mode. These level 2 OCN products provide Ocean Wind field (OWI) and Surface Radial Velocity (RVL).

The OWI component is a ground range gridded estimate of the surface wind speed and direction at 10 m above the surface, derived from IW mode. The OWI component contains a set of wind vectors for each processed Level-1 input product. The norm is the wind speed in m/s and the argument is wind direction in degrees (meteorological convention = clockwise direction from where the wind blows with respect to the North). The spatial resolution of the SAR wind speed is 1 km for IW mode.

The RVL surface radial velocity component is a ground range gridded difference between the measured Level-2 Doppler grid and the Level-1 calculated geometrical Doppler. The RVL component provides continuity of the ASAR Doppler grid. The RVL estimates are produced on a ground-range grid.

These data are available via CEDA to any registered CEDA user.

Date (Publication): 2021-06-23T15:39:03

Date (Creation): 2021-06-23T15:39:03

Citation identifier: https://catalogue.ceda.ac.uk/uuid/74b47589019e45c187fb5e81b3ad4a31

Citation identifier: NERC EDS Centre for Environmental Data Analysis / 74b47589019e45c187fb5e81b3ad4a31

Point of contact

Organisation name	Electronic mail address	Role
Copernicus	unknown	Author
European Space Agency (ESA)	unknown	Author
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	Custodian
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	Distributor
European Space Agency (ESA)	unknown	Principal investigator
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	pointofContact
ESA Support	eosupport@copernicus.esa.int	pointofContact
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	Publisher

Maintenance and update frequency: As needed

Update scope: Dataset

Keywords

Sentinel
radar
Synthetic Aperture Radar
SAR
Interferometric Wide
IW
OCN

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: Other restrictions

Other constraints: Public data: access to these data is available to both registered and non-registered users.

Use constraints: Other restrictions

Other constraints: Under the following licence https://sentinel.esa.int/documents/247904/690755/Sentinel_Data_Legal_Notice, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Imagery base maps earth cover

Begin date: 2019-06-25T00:00:00

Unique resource identifier: WGS 84

Distribution format

Name	Version
These data are provided in the ESA safe format as downloaded from the Sentinel data hubs.

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/74b47589019e45c187fb5e81b3ad4a31	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/sentinel1a/data/IW/L2_OCN/IPF_v3/	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	https://sentinels.copernicus.eu/web/sentinel/user-guides/sentinel-1-sar/document-library/-/asset_publisher/1dO7RF5fJMbd/content/sentinel-1-product-specification	Sentinel 1 Product Specification Document

OnLine resource

Protocol	Linkage	Name
	https://sentinel.esa.int/web/sentinel/missions/sentinel-1/observation-scenario	Sentinel 1 Observation Scenario

OnLine resource

Protocol	Linkage	Name
	https://earth.esa.int/web/sentinel/toolboxes/sentinel-1	A dedicated toolbox (S1TBX) is available to view Sentinel 1 data

OnLine resource

Protocol	Linkage	Name
	https://sentinels.copernicus.eu/web/sentinel/technical-guides/sentinel-1-sar/products-algorithms/level-2/products/surface-radial-velocity-component	Surface Radial Velocity (RVL) guide

OnLine resource

Protocol	Linkage	Name
	https://sentinels.copernicus.eu/web/sentinel/ocean-wind-field-component	Ocean Wind field (OWI) guide

OnLine resource

Protocol	Linkage	Name
	https://sentinel.esa.int/web/sentinel/user-guides/sentinel-1-sar/document-library	Sentinel 1 document library

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: Data collected and prepared by European Space Agency (ESA). Downloaded from the Collaborative Hub for use by CEDA users.

Metadata

File identifier: 74b47589019e45c187fb5e81b3ad4a31 XML

Metadata language: English

Character set: UTF8

Parent identifier: Sentinel 1A: C-band Synthetic Aperture Radar (SAR) data
06d1c86f906e42f58172de32c2640be2

Hierarchy level: Dataset

Date stamp: 2026-02-08T03:17:49

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Point of contact

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