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ESA Ocean Colour Climate Change Initiative (Ocean_Colour_cci): Global attenuation coefficient for downwelling irradiance (Kd490) gridded on a geographic projection, Version 2.0
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2016-12-12
Download Stats: last 12 months
This dataset has been superseded. See Latest Version here

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 2.0 Kd490 attenuation coefficient (m-1) for downwelling irradiance product on a geographic projection at approximately 4 km spatial resolution and at a number of time resolutions (daily, 5-day, 8-day and monthly composites). It is computed from the Ocean Colour CCI Version 2.0 inherent optical properties dataset at 490 nm and the solar zenith angle. Note, these data are 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. (2016): ESA Ocean Colour Climate Change Initiative (Ocean_Colour_cci): Global attenuation coefficient for downwelling irradiance (Kd490) gridded on a geographic projection, Version 2.0. Centre for Environmental Data Analysis, date of citation. http://catalogue.ceda.ac.uk/uuid/49bcb6f29c824ae49e41d2d3656f11be
Keywords:  ESA, CCI, Ocean Colour, Geographic, Level 3, spectral attenuation coefficient for downwelling irradiance, Level 3S, MERGED, EOS, Orbview-2, Envisat, Orbview-2, Environmental Satellite, Aqua, SeaWiFS, MERIS, MODIS, Plymouth Marine Laboratory, ocean colour, day, 8 days, month
Previous Info:
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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.
Not defined
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:
Data are in NetCDF format
Process overview

volume_attenuation_coefficient_of_downwelling_r... (kd_490) [m-1]  
latitude (lat) [degrees...]  
latitude (lat) [degrees...]  
longitude (lon) [degrees...]  
longitude (lon) [degrees...]  
time (time)  
There are no comments about this dataset
Temporal Range
Geographic Extent

-180.0000°     180.0000°
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