Dataset
ESA Ocean Colour Climate Change Initiative (Ocean_Colour_cci): Global chlorophyll-a data products gridded on a sinusoidal projection, Version 2.0
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 their Version 2.0 chlorophyll-a product (in mg/m3) on a sinusoidal projection at 4 km spatial resolution and at a number of time resolutions (daily, 5-day, 8-day and monthly composites). Note, the chlorophyll-a data are also included in the 'All Products' dataset.
This data product is on a sinusoidal equal-area grid projection, matching the NASA standard level 3 binned projection. The default number of latitude rows is 4320, which results in a vertical bin cell size of approximately 4 km. The number of longitude columns varies according to the latitude, which permits the equal area property. Unlike the NASA format, where the bin cells that do not contain any data are omitted, the CCI format retains all cells and simply marks empty cells with a NetCDF fill value. (A separate dataset is also available for data on a geographic projection.)
Details
| Previous Info: |
No news update for this record
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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 |
| File Format: |
Data are in NetCDF format
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Process overview
- long_name: Bias of log10-transformed chlorophyll-a concentration in seawater.
- var_id: chlor_a_log10_bias
- long_name: Count of the number of observations from the MERIS sensor contributing to this bin cell
- var_id: MERIS_nobs_sum
- var_id: MODISA_nobs_sum
- long_name: Count of the number of observations from the MODIS (Aqua) 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_sum
- long_name: Count of the total number of observations contributing to this bin cell
- var_id: total_nobs_sum
- long_name: Root-mean-square-difference of log10-transformed chlorophyll-a concentration in seawater.
- var_id: chlor_a_log10_rmsd
- var_id: crs
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: lat
- units: degrees_east
- standard_name: longitude
- var_id: lon
- standard_name: time
- var_id: time
Temporal Range
1997-09-03T23:00:00
2013-12-31T23:59:59
Geographic Extent
90.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |