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ATSR-2: L3U Product (ATSR-2 L3U) sea surface temperature values, v2.1

Update Frequency: Not Planned
Latest Data Update: 2019-03-19
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2014-07-07
Download Stats: last 12 months
Dataset Size: 116.77K Files | 19GB


Along-Track Scanning Radiometer (AATSR) mission was funded jointly by the UK Department of Energy and Climate Change External Link (DECC) and the Australian Department of Innovation, Industry, Science and Research External Link (DIISR).

This dataset contains the Along-Track Scanning Radiometer on ESA ERS-2 satellite (ATSR-2) L3U product. These data were introduced product in the third reprocessing of (A)ATSR multimission data. These data were produced by the new ARC L2P processor version 1.2 that also produced the new L2P data. The L3U product was produced through averaging the L2P data onto a regular grid at 30 arcminute resolution. Hence, the L3U product is similar to the AST/METEO product.

Citable as:  European Space Agency (2014): ATSR-2: L3U Product (ATSR-2 L3U) sea surface temperature values, v2.1. NERC Earth Observation Data Centre, date of citation.
Abbreviation: Not defined
Keywords: ATSR-2, L3U


Previous Info:
No news update for this record
Previously used record identifiers:
Access rules:
Restricted data: please submit an application using the REQUEST ACCESS link for access.
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:

The data were acquired by the European Space Agency's (ESA) Envisat satellite, and the NERC Earth Observation Data Centre (NEODC) mirrors the data for UK users.

File Format:
Data are netCDF formatted

Process overview

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

Instrument/Platform pairings

ERS2 ATSR2 Deployed on: European Remote Sensing satellite 2 - ERS-2

Mobile platform operations

Mobile Platform Operation 1 Mobile Platform Operation for: ERS-2

Computation Element: 1

Title deployed on ERS-2
Abstract This computation involved: deployed on ERS-2.
Input Description None
Output Description None
Software Reference None
Output Description


  • units: m s-1
  • standard_name: wind_speed
  • var_id: wind_speed
  • long_name: 10m wind speed
  • units: kelvin
  • long_name: Deviation from last SST analysis
  • var_id: dt_analysis
  • long_name: L2P flags
  • var_id: l2p_flags
  • units: degrees_north
  • var_id: lat_bnds
  • long_name: Latitude cell boundaries
  • units: degrees_east
  • var_id: lon_bnds
  • long_name: Longitude cell boundaries
  • long_name: Probability of pixel being clear
  • var_id: probability_clear
  • units:
  • units: kelvin
  • long_name: SSES bias estimate
  • var_id: sses_bias
  • units: kelvin
  • long_name: SSES standard deviation
  • var_id: sses_standard_deviation
  • long_name: Sampling uncertainty
  • var_id: sampling_uncertainty
  • units: kelvin
  • long_name: Uncertainty due to radiometric noise
  • var_id: radiometric_uncertainty
  • units: kelvin
  • long_name: Uncertainty from errors likely to be correlated over synoptic scales
  • var_id: synoptically_correlated_uncertainty
  • long_name: aerosol dynamic indicator
  • var_id: aerosol_dynamic_indicator
  • units:
  • units: 1
  • long_name: number of pixels from the L2P contributing to the SST value
  • var_id: or_number_of_pixels
  • var_id: quality_level
  • long_name: quality level of SST pixel
  • units: 1
  • long_name: sea ice fraction
  • standard_name: sea_ice_fraction
  • var_id: sea_ice_fraction
  • units: kelvin
  • long_name: sea surface skin temperature
  • standard_name: sea_surface_skin_temperature
  • var_id: sea_surface_temperature
  • units: angular_degree
  • long_name: solar zenith angle
  • standard_name: zenith_angle
  • var_id: solar_zenith_angle
  • units: seconds
  • long_name: time difference from reference time
  • var_id: sst_dtime

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • var_id: lat
  • long_name: Latitude coordinates
  • units: degrees_east
  • standard_name: longitude
  • var_id: lon
  • long_name: Longitude coordinates
  • standard_name: time
  • var_id: time
  • long_name: reference time of sst file
Temporal Range
Start time:
End time:
Geographic Extent