Dataset
ESA Ocean Colour Climate Change Initiative (Ocean_Colour_cci): Global attenuation coefficient for downwelling irradiance (Kd490) gridded on a geographic projection, Version 3.1
(http://dx.doi.org/10.5285/9c334fbe6d424a708cf3c4cf0c6a53f5)
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 3.1 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 3.1 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).
Details
| Previous Info: |
2018-07-04
This dataset forms part of the v3.1 ocean colour dataset collection that can be cited with doi:10.5285/9c334fbe6d424a708cf3c4cf…
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2018-07-04
This dataset forms part of the v3.1 ocean colour dataset collection that can be cited with doi:10.5285/9c334fbe6d424a708cf3c4cf0c6a53f5 |
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| Previously used record identifiers: |
No related previous identifiers.
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| 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. |
| Data Quality: |
CCI data format checked
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| File Format: |
Data are in NetCDF format
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Process overview
- units: m-1
- long_name: Bias of downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
- var_id: kd_490_bias
- names: Bias of 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_sum
- names: Count of the number of observations from the MERIS sensor contributing to this bin cell
- var_id: MODISA_nobs_sum
- long_name: Count of the number of observations from the MODIS (Aqua) sensor contributing to this bin cell
- names: Count of the number of observations from the MODIS (Aqua) sensor contributing to this bin cell
- var_id: SeaWiFS_nobs_sum
- long_name: Count of the number of observations from the SeaWiFS (GAC and LAC) sensor contributing to this bin cell
- names: Count of the number of observations from the SeaWiFS (GAC and LAC) sensor contributing to this bin cell
- long_name: Count of the number of observations from the VIIRS sensor contributing to this bin cell
- var_id: VIIRS_nobs_sum
- names: Count of the number of observations from the VIIRS sensor contributing to this bin cell
- long_name: Count of the total number of observations contributing to this bin cell
- var_id: total_nobs_sum
- names: Count of the total number of observations contributing to this bin cell
- units: m-1
- long_name: Downwelling attenuation coefficient at 490nm, derived using Lee 2005 equation and bbw from Zhang 2009 (following the SeaDAS Kd_lee algorithm)
- 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
- units: m-1
- long_name: Root-mean-square-difference of downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
- var_id: kd_490_rmsd
- names: Root-mean-square-difference of downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
- var_id: crs
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
- names: time
Temporal Range
1997-09-03T23:00:00
2016-12-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |