ESA Sea Level Climate Change Initiative (Sea_Level_cci): Altimeter along-track high resolution sea level anomalies in some coastal regions from ENVISAT (2002-2010) and SARAL (2013-2016) satellite altimetry, v1.1

This dataset contains along-track sea level anomalies derived from satellite altimetry. Altimeter along-track sea level measurements from the RA2 instrument on ENVISAT and the Altika instrument on SARAL satellite missions have been processed to produce high resolution (20 Hz, corresponding to an along-track distance of ~300m) sea level anomalies, in order to provide long-term homogeneous sea level time series as close to the coast as possible in six different coastal regions (North-East Atlantic, Mediterranean Sea, Western Africa, North Indian Ocean, South-East Asia and Australia).

The product benefits from the spatial resolution provided by high-rate data, the Adaptive Leading Edge Subwaveform Retracker (ALES) and the post-processing strategy of the along-track (X-TRACK) algorithm, both developed for the processing of coastal altimetry data, as well as the best possible set of geophysical corrections.

The main objective of this product is to provide accurate altimeter Sea Level Anomalies (SLA) time series as close to the coast as possible in order to assess whether the coastal sea level trends experienced at the coast are similar to the observed sea level trends in the open ocean and to determine the causes of the potential discrepancies.

The Envisat and SARAL/AltiKa missions have the same ground track but the temporal gap between both missions prevents from computing reliable trends during the total period between both missions.

This dataset has been produced by the Climate Change Initiative Coastal Sea Level team, within the extension phase of the European Sapce Agency (ESA) Climate Change Initiative.

Date (Publication): 2021-12-09T13:53:57

Date (Creation): 2021-12-09T13:53:57

Citation identifier: https://catalogue.ceda.ac.uk/uuid/2e3a3408af2f4e918458c09d4e5f7460

Citation identifier: NERC EDS Centre for Environmental Data Analysis / 2e3a3408af2f4e918458c09d4e5f7460

Point of contact

Organisation name	Electronic mail address	Role
The Climate Change Coastal sea level team (CLS, LEGOS, TUM, NOC)	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
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	pointofContact
NERC EDS Centre for Environmental Data Analysis	support@ceda.ac.uk	Publisher

Maintenance and update frequency: Unknown

Update scope: Dataset

Keywords

ESA CCI
SLA

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://artefacts.ceda.ac.uk/licences/specific_licences/esacci_sealevel_terms_and_conditions.pdf, 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: 2002-09-30T00:00:00

End date: 2016-06-16T23:59:59

Unique resource identifier: WGS 84

Distribution format

Name	Version
Data are in NetCDF format

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/2e3a3408af2f4e918458c09d4e5f7460	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/esacci/sea_level/data/XTRACK_ALES_SLA/ENVISAT_SARAL/SLA/v1.1/	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	https://climate.esa.int/projects/sea-level/key-documents/	See the 'Technical coastal SL' key documents section for the latest version of the documentation. https://climate.esa.int/projects/sea-level/key-documents/

OnLine resource

Protocol	Linkage	Name
	https://climate.esa.int/media/documents/SLCCI_PUG_011_ProductUserGuide_v1.5_5AtFO2g.pdf	Product User Guide

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: This dataset has been produced by the Climate Change Initiative Coastal Sea Level team within the extension phase of the European Space Agency (ESA) Climate Change Initiative. A copy has been transferred to CEDA as part of the ESA CCI Open Data Portal project.

Metadata

File identifier: 2e3a3408af2f4e918458c09d4e5f7460 XML

Metadata language: English

Character set: UTF8

Parent identifier: ESA Sea Level Climate Change Initiative (Sea Level CCI) dataset collection
56c94cb1410f4f2b8a41729c0e558617

Hierarchy level: Dataset

Date stamp: 2026-02-05T03:22:33

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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