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Dataset

 
European Space Agency Sea Surface Temperature Climate Change Initiative (ESA CCI SST) Logo

ESA Sea Surface Temperature Climate Change Initiative (ESA SST CCI): Along-Track Scanning Radiometer (ATSR) level 3 uncollated data (L3U) long-term product version 1.1

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2014-05-13
DOI Publication Date: 2014-05-30
Download Stats: last 12 months

Abstract

The ESA Sea Surface Temperature Climate Change Initiative (ESA SST CCI) dataset accurately maps the surface temperature of the global oceans over the period 1991 to 2010 using observations from many satellites. The data provides an independently quantified SST to a quality suitable for climate research.
The ESA SST CCI ATSR (Along-Track Scanning Radiometer) Long Term Product version 1.1 consists of stable, low-bias sea surface temperature (SST) data covering the period 08/1991 - 04/2012. The L3U data product provides these SST data regridded onto a global longitude-latitude grid.

The version 1.1 data is an update to the version 1.0 dataset.

This dataset is cited in: Merchant, C. J., Embury, O., Roberts-Jones, J., Fiedler, E., Bulgin, C. E., Corlett, G. K., Good, S., McLaren, A., Rayner, N., Morak-Bozzo, S. and Donlon, C. (2014), Sea surface temperature datasets for climate applications from Phase 1 of the European Space Agency Climate Change Initiative (SST CCI). Geoscience Data Journal. doi: 10.1002/gdj3.20

Citable as:  Merchant, C.J.; Embury, O.; Roberts-Jones, J.; Fiedler, E.K.; Bulgin, C.E.; Corlett, G.K.; Good, S.; McLaren, A.; Rayner, N.A.; Donlon, C. (2014): ESA Sea Surface Temperature Climate Change Initiative (ESA SST CCI): Along-Track Scanning Radiometer (ATSR) level 3 uncollated data (L3U) long-term product version 1.1. NERC Earth Observation Data Centre, 30 May 2014. doi:10.5285/79229cee-71ab-48b6-b7d6-2fceccead938. http://dx.doi.org/10.5285/79229cee-71ab-48b6-b7d6-2fceccead938
Abbreviation: Not defined
Keywords: Not defined

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/neodc.nerc.ac.uk__ATOM__ACTIVITY_eb1e9858-dab3-11e3-9240-00163e251233
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/esacci_sst_terms_and_conditions.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data were processed and supplied to the NEODC by the ESA CCI SST project team.

File Format:
Data availability and file format

The L3U (Level 3 Uncollated) data from the series of Along Track Scanning Radiometer (ATSR) sensors consists of a single orbit per file on a 0.05° regular latitude-longitude grid. These start in August 1991. Each file contains two sets of SSTs. The first set provides a measure of the temperature of the skin of the water at the time it was observed; the second set are estimates of the temperature at 20 cm depth and at either 1030 h or 2230 h local time. Each SST has associated with it a total uncertainty estimate, and uncertainty estimates for various contributions to that total uncertainty.

The data are stored in NetCDF-4 format files. Data arrays in NetCDF files are known as ‘variables’ and each variable has metadata stored with it. Please read the ESA CCI SST Product User Guide, available here before using the data. There is also a Quick Start Guide here.

Access to the ESA SST CCI ATSR L3U long term product is available through our data browser here or via ftp at /neodc/esacci_sst/data/lt/ATSR/L3U/v01.1

More Information (under review)


Introduction

SST CCI is a collaboration of 9 partner institutions. The team brings together European expertise in creating climate quality records of ocean temperatures from satellite data, with expertise in climate applications and computer engineering. Through the ESA funded Climate Change Initiative, the team have created a new, 20-yr climate record of global sea surface temperature (SST). Based on satellite data, this record is independent of thermometer based measurements from ships and buoys. The new climate SST record complements and challenges existing knowledge of how ocean temperatures have evolved.

The main dataset consists of stable, low-bias sea surface temperature (SST) data covering the period 08/1991 - 04/2012 (referred to as the Long Term Product).

The version 1.1 data is an update to the version 1.0 dataset with the following changes:

  • Complete up to end of AATSR mission (April 2012)
  • Fixes persistent holes from missing data after midnight
  • Restores missing files
  • Various metadata bugs fixed


Access Restrictions

Access to ESA CCI SST data is made available to all registered users under a Creative Commons Licence by attribution.

To download these data, you are invited to register as a NEODC user. This online registration only takes a few minutes.

The authors request an acknowledgement of the data source (cite both dataset DOI and the Geoscience Data Journal article indicated in the abstract above) if they are used in any publication.


Data availability and file format

The L3U (Level 3 Uncollated) data from the series of Along Track Scanning Radiometer (ATSR) sensors consists of a single orbit per file on a 0.05° regular latitude-longitude grid. These start in August 1991. Each file contains two sets of SSTs. The first set provides a measure of the temperature of the skin of the water at the time it was observed; the second set are estimates of the temperature at 20 cm depth and at either 1030 h or 2230 h local time. Each SST has associated with it a total uncertainty estimate, and uncertainty estimates for various contributions to that total uncertainty.

The data are stored in NetCDF-4 format files. Data arrays in NetCDF files are known as ‘variables’ and each variable has metadata stored with it. Please read the ESA CCI SST Product User Guide, available here before using the data. There is also a Quick Start Guide here.

Access to the ESA SST CCI ATSR L3U long term product is available through our data browser here or via ftp at /neodc/esacci_sst/data/lt/ATSR/L3U/v01.1


Who to contact

If you have queries about these pages or about obtaining the ESA CCI SST data from NEODC/CEMS/CEDA then you should contact CEDA Support. Your query should be answered within one working day. When follow-up work is required, the CEMS/CEDA support will carry out the work as quickly and efficiently as possible, and in any case, the user will be kept informed of progress. If you have any questions concerning scientific issues such as details of the retrieval algorithm, or characteristics of the data then you should contact the ESA SST CCI science leader.

Process overview

This dataset was generated by the computation detailed below.
Title CCI SST Processor
Abstract This computation involved: CCI SST Processor.
Input Description None
Output Description None
Software Reference None
  • units: m s-1
  • standard_name: wind_speed
  • var_id: wind_speed
  • long_name: 10m wind speed
  • names: wind_speed, 10m wind speed
  • long_name: L2P flags
  • var_id: l2p_flags
  • names: L2P flags
  • var_id: lat_bnds
  • long_name: Latitude cell boundaries
  • units: degrees_north
  • names: Latitude cell boundaries
  • units: degrees_east
  • var_id: lon_bnds
  • long_name: Longitude cell boundaries
  • names: Longitude cell boundaries
  • long_name: SSES bias estimate
  • var_id: sses_bias
  • units: kelvin
  • names: SSES bias estimate
  • long_name: SSES standard deviation
  • var_id: sses_standard_deviation
  • units: kelvin
  • names: SSES standard deviation
  • long_name: Time and depth adjustment uncertainty
  • var_id: adjustment_uncertainty
  • units: kelvin
  • names: Time and depth adjustment uncertainty
  • long_name: Time cell boundaries
  • var_id: time_bnds
  • names: Time cell boundaries
  • long_name: Total uncertainty in sea_surface_temperature_depth
  • var_id: sst_depth_total_uncertainty
  • units: kelvin
  • names: Total uncertainty in sea_surface_temperature_depth
  • units: kelvin
  • long_name: Uncertainty from errors likely to be correlated over large scales
  • var_id: large_scale_correlated_uncertainty
  • names: Uncertainty from errors likely to be correlated over large scales
  • long_name: Uncertainty from errors likely to be correlated over synoptic scales
  • var_id: synoptically_correlated_uncertainty
  • units: kelvin
  • names: Uncertainty from errors likely to be correlated over synoptic scales
  • long_name: Uncertainty from errors unlikely to be correlated between SSTs
  • var_id: uncorrelated_uncertainty
  • units: kelvin
  • names: Uncertainty from errors unlikely to be correlated between SSTs
  • long_name: quality level of SST pixel
  • var_id: quality_level
  • names: quality level of SST pixel
  • long_name: sea surface skin temperature
  • standard_name: sea_surface_skin_temperature
  • var_id: sea_surface_temperature
  • units: kelvin
  • names: sea_surface_skin_temperature, sea surface skin temperature
  • long_name: sea surface temperature at 0.2 m
  • var_id: sea_surface_temperature_depth
  • standard_name: sea_water_temperature
  • units: kelvin
  • names: sea_water_temperature, sea surface temperature at 0.2 m
  • long_name: time difference from reference time
  • units: seconds
  • var_id: sst_dtime
  • names: time difference from reference time

Co-ordinate Variables

  • standard_name: latitude
  • var_id: lat
  • long_name: Latitude
  • units: degrees_north
  • names: latitude, Latitude
  • var_id: lon
  • units: degrees_east
  • standard_name: longitude
  • long_name: Longitude
  • names: longitude, Longitude
  • long_name: reference time of sst file
  • standard_name: time
  • var_id: time
  • names: time, reference time of sst file
Coverage
Temporal Range
Start time:
1991-08-01T00:00:00
End time:
2012-04-08T00:00:00
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°