This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 

Dataset

 

ESA Ocean Colour Climate Change Initiative (Ocean Colour CCI): Daily global attenuation coefficient for downwelling irradiance (Kd490) gridded on a geographic projection, Version 1.0

Status: Superseded
Online Status: ONLINE
Publication State: Published
Publication Date: 2015-12-07
Download Stats: last 12 months

This dataset has been superseded. See Latest Version here
Abstract

The ESA Ocean Colour CCI project has produced global level 3 binned multi-sensor time-series of satellite ocean-colour data with a particular focus for use in climate studies.

This dataset contains the Version 1.0 Kd490 attenuation coefficient (m-1) for downwelling irradiance product on a geographic projection at approximately 4 km spatial resolution and at a daily time resolution. It is computed from the Ocean Colour CCI Version 1 inherent optical properties dataset at 490 nm and the solar zenith angle. Note, this dataset is also contained within the 'All Products' dataset.

This data product is on a geographic grid projection, which is a direct conversion of latitude and longitude coordinates to a rectangular grid, typically a fixed multiplier of 360x180. The netCDF files follow the CF convention for this projection with a resolution of 8640x4320. (A separate dataset is also available for data on a sinusoidal projection).

Citable as:  Sathyendranath, S.; Groom, S.; Grant, M.; Brewin, R.J.W.; Thompson, A.; Chuprin, A.; Horseman, A.; Jackson, T.; Martinez Vicente, V.; Platt, T.; Brockmann, C.; Zühlke, M.; Doerffer, R.; Valente, A.; Brotas, V.; Krasemann, H.; Müller, D.; Dowell, M.; Mélin, F.; Swinton, J.; Farman, A.; Lavender, S.; Moore, T.S.; Regner, P.; Roy, S.; Steinmetz, F.; Mazeran, C.; Brando, V.E.; Taberner, M.; Antoine, D.; Arnone, R.; Balch, W.M.; Barker, K.; Barlow, R.; Bélanger, S.; Berthon, J.-F.; Beşiktepe, Ş.; Canuti, E.; Chavez, F.; Claustre, H.; Crout, R.; Frouin, R.; García-Soto, C.; Gibb, S.W.; Gould, R.; Hooker, S.; Kahru, M.; Klein, H.; Kratzer, S.; Loisel, H.; McKee, D.; Mitchell, B.G.; Moisan, T.; Feldman, G.; Franz, B.; Muller-Karger, F.; O'Dowd, L.; Ondrusek, M.; Poulton, A.J.; Repecaud, M.; Smyth, T.; Sosik, H.M.; Twardowski, M.; Voss, K.; Werdell, J.; Wernand, M.; Zibordi, G. (2015): ESA Ocean Colour Climate Change Initiative (Ocean Colour CCI): Daily global attenuation coefficient for downwelling irradiance (Kd490) gridded on a geographic projection, Version 1.0. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/06e4e74e2cb24ec582cdce05e2ff1c87
Abbreviation: Not defined
Keywords: ESA, CCI, Geographic, Daily

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous 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: http://licences.ceda.ac.uk/image/data_access_condition/esacci_oc_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:

This data has been produced by the ESA Ocean Colour CCI project and provided to CEDA in the context of the ESA CCI Open Data Portal project

File Format:
The data is in netCDF format.

Process overview

  • long_name: Bias uncertainty in downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
  • standard_name: volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water_bias_uncertainty
  • var_id: kd_490_bias_uncertainty
  • units: m-1
  • names: volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water_bias_uncertainty, Bias uncertainty in downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
  • long_name: Count of the number of observations from the MERIS sensor contributing to this bin cell
  • var_id: MERIS_nobs
  • names: Count of the number of observations from the MERIS sensor contributing to this bin cell
  • var_id: MODISA_nobs
  • long_name: Count of the number of observations from the MODIS sensor contributing to this bin cell
  • names: Count of the number of observations from the MODIS sensor contributing to this bin cell
  • long_name: Count of the number of observations from the SeaWiFS sensor contributing to this bin cell
  • var_id: SeaWiFS_nobs
  • names: Count of the number of observations from the SeaWiFS sensor contributing to this bin cell
  • long_name: Count of the total number of observations contributing to this bin cell
  • var_id: total_nobs
  • names: Count of the total number of observations contributing to this bin cell
  • long_name: Downwelling attenuation coefficient at 490nm, derived using Lee 2005 equation and bbw from Zhang 2009 (following the SeaDAS Kd_lee algorithm)
  • units: m-1
  • standard_name: volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water
  • var_id: kd_490
  • names: Downwelling attenuation coefficient at 490nm, derived using Lee 2005 equation and bbw from Zhang 2009 (following the SeaDAS Kd_lee algorithm), volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water
  • long_name: RMS uncertainty in downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
  • standard_name: volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water_rms_uncertainty
  • var_id: kd_490_rms_uncertainty
  • units: m-1
  • names: RMS uncertainty in downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009, volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water_rms_uncertainty
  • var_id: crs

Co-ordinate Variables

  • standard_name: latitude
  • var_id: lat
  • long_name: latitude
  • units: degrees_north
  • names: latitude
  • var_id: lon
  • units: degrees_east
  • standard_name: longitude
  • long_name: longitude
  • names: longitude
  • standard_name: time
  • var_id: time
  • names: time
Coverage
Temporal Range
Start time:
1997-09-03T23:00:00
End time:
2012-07-31T22:59:59
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°