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ARC: Level 3 daily sea surface temperature data v1.1

Update Frequency: Not Planned
Latest Data Update: 2012-01-27
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2012-05-16
Download Stats: last 12 months
Dataset Size: 19.59K Files | 71GB


The AATSR Reprocessing for Climate (ARC) dataset consists of Advanced Along-Track Scanning Radiometer (AATSR) multimission data which has been reprocessed using various algorithms and in-situ contemporaneous measurements, to provide update retrievals of Sea Surface Temperature (SST) and assess their accuracy.

This dataset contains version 1.1 of the Level 3 sea surface temperature data product produced by the ARC project team.

The main ARC objective was to reduce regional biases in retrieved sea surface temperature (SST) to less than 0.1 K for all global oceans while creating a very homogeneous record with a stability (lack of drift in the observing system and analysis) of 0.05 K decade.

Citable as:  Embury, O. (2012): ARC: Level 3 daily sea surface temperature data v1.1. NERC Earth Observation Data Centre, date of citation.
Abbreviation: Not defined
Keywords: ARC, Sea Surface Temperature


Previous Info:
No news update for this record
Previously used record identifiers:
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: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

ARC data is derived from the aatsr_multimission dataset held at the NEODC. ARC also uses UKMO Buoy data to provide ground calibration data (GHRSST). Data was supplied to the NEODC by Owen Embury at the University of Edinburgh.

Data Quality:
ARC data is reprocessed (A)ATSR series data with the intention of providing better constrained SST estimates than the original ESA SSE AATSR product. ARC data incorporates improved algorithms for estimation of SST using ground based in -situ SST measurements (GHRSST) and estimation of air column Saharan dust content.
File Format:
Data are netCDF formatted

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by a combination of instruments deployed on platforms and computations as detailed below.

Computation Element: 1

Title ARC processor deployed on unknown computer
Abstract This computation involved: ARC processor.
Input Description None
Output Description None
Software Reference None
Output Description


  • var_id: mask
  • long_name: bit mask
  • names: bit mask
  • units: m
  • var_id: depth
  • standard_name: depth
  • long_name: depth
  • names: depth
  • units: degrees_north
  • var_id: lat_bnds
  • long_name: latitude cell boundaries
  • names: latitude cell boundaries
  • units: degrees_east
  • var_id: lon_bnds
  • long_name: longitude cell boundaries
  • names: longitude cell boundaries
  • units: 1
  • var_id: or_number_of_pixels
  • long_name: number of pixels from the L2Ps contributing to the SST value
  • names: number of pixels from the L2Ps contributing to the SST value
  • units: kelvin
  • long_name: sea surface skin temperature
  • standard_name: sea_surface_skin_temperature
  • var_id: sst_skin
  • names: sea_surface_skin_temperature, sea surface skin temperature
  • units: kelvin
  • standard_name: sea_water_temperature
  • long_name: sea water temperature
  • var_id: sst_depth
  • names: sea_water_temperature, sea water temperature
  • units: seconds
  • long_name: time difference from reference time
  • var_id: sst_dtime
  • names: time difference from reference time
  • units: kelvin
  • long_name: uncertainty in retrieved sst
  • var_id: uncertainty
  • names: uncertainty in retrieved sst

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • long_name: latitude
  • var_id: lat
  • names: latitude
  • units: degrees_east
  • standard_name: longitude
  • long_name: longitude
  • var_id: lon
  • names: longitude
  • standard_name: time
  • var_id: time
  • long_name: reference time of sst field
  • names: time, reference time of sst field
Temporal Range
Start time:
End time:
Geographic Extent

Related parties
Authors (1)
Principal Investigators (1)