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Dataset

 

ESA Ocean Colour Climate Change Initiative (Ocean_Colour_cci): Global remote sensing reflectance gridded on a sinusoidal projection, Version 4.2

Update Frequency: Not Planned
Latest Data Update: 2020-06-24
Status: Superseded
Online Status: ONLINE
Publication State: Published
Publication Date: 2020-07-01
Download Stats: last 12 months
Dataset Size: 11.06K Files | 7TB

This dataset has been superseded.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 4.2 Remote Sensing Reflectance product on a sinusoidal projection at approximately 4 km spatial resolution and at a number of time resolutions (daily, 5-day, 8-day and monthly composites). Values for remote sensing reflectance at the sea surface are provided for the standard SeaWiFS wavelengths (412, 443, 490, 510, 555, 670nm) with pixel-by-pixel uncertainty estimates for each wavelength. These are merged products based on SeaWiFS, MERIS and Aqua-MODIS data. Note, these data are also contained within 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).

Please note, this dataset has been superseded. Later versions of the data are now available.

Citable as:  Sathyendranath, S.; Jackson, T.; Brockmann, C.; Brotas, V.; Calton, B.; Chuprin, A.; Clements, O.; Cipollini, P.; Danne, O.; Dingle, J.; Donlon, C.; Grant, M.; Groom, S.; Krasemann, H.; Lavender, S.; Mazeran, C.; Mélin, F.; Moore, T.S.; Müller, D.; Regner, P.; Steinmetz, F.; Steele, C.; Swinton, J.; Valente, A.; Zühlke, M.; Feldman, G.; Franz, B.; Frouin, R.; Werdell, J.; Platt, T. (2020): ESA Ocean Colour Climate Change Initiative (Ocean_Colour_cci): Global remote sensing reflectance gridded on a sinusoidal projection, Version 4.2. Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/d6d0d7b4cf3540448b4ddcaed2f54b81/
Abbreviation: Not defined
Keywords: ESA, CCI, Ocean Colour, Sinusoidal, Reflectance

Details

Previous Info:

2021-05-19 This dataset forms part of the v4.2 ocean colour dataset collection that can be cited with the doi: 10.5285/d62f7f801cb54c749d2… Show More 2021-05-19 This dataset forms part of the v4.2 ocean colour dataset collection that can be cited with the doi: 10.5285/d62f7f801cb54c749d20e736d4a1039 Show Less

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(s):
https://artefacts.ceda.ac.uk/licences/specific_licences/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:

These data were produced by the ESA Ocean Colour CCI project and provided to CEDA in the context of the ESA CCI Open Data Portal project.
This dataset forms part of the v4.2 ocean colour dataset collection that can be cited with the following DOI: 10.5285/d62f7f801cb54c749d20e736d4a1039

Data Quality:
Data are as provided by the Ocean Colour CCI team. For details of validation see the linked Product User Guide and documentation on the Ocean Colour CCI website (https://climate.esa.int/en/projects/ocean-colour/)
File Format:
Data are netCDF formatted.

Process overview

This dataset was generated by the computation detailed below.
Title

Derivation of Ocean Colour v4 data from the ESA Climate Change Initiative Ocean Colour project (Ocean_Colour_cci)

Abstract

The ocean colour CCI has calculated ocean colour Essential Climate Variable data, using input data from various satellite instruments, as part of the ESA Climate Change Initiative program.

The v4 dataset has been created by band-shifting and bias-correcting MERIS, MODIS and VIIRS data to
match SeaWiFS data, merging the datasets and computing per-pixel uncertainty estimates.

For more information see the Ocean Colour v4 Product User Guide.

Input Description

None

Output Description

None

Software Reference

None

  • units: sr-1
  • long_name: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm.
  • var_id: Rrs_412_bias
  • names: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm.
  • units: sr-1
  • long_name: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm.
  • var_id: Rrs_443_bias
  • names: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm.
  • units: sr-1
  • long_name: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm.
  • var_id: Rrs_490_bias
  • names: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm.
  • units: sr-1
  • long_name: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm.
  • var_id: Rrs_510_bias
  • names: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm.
  • units: sr-1
  • long_name: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 555 nm.
  • var_id: Rrs_555_bias
  • names: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 555 nm.
  • units: sr-1
  • long_name: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 670 nm.
  • var_id: Rrs_670_bias
  • names: Bias of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 670 nm.
  • 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
  • var_id: water_class1
  • long_name: Mean of normalised water class 1 membership over the compositing period
  • names: Mean of normalised water class 1 membership over the compositing period
  • var_id: water_class10
  • long_name: Mean of normalised water class 10 membership over the compositing period
  • names: Mean of normalised water class 10 membership over the compositing period
  • var_id: water_class11
  • long_name: Mean of normalised water class 11 membership over the compositing period
  • names: Mean of normalised water class 11 membership over the compositing period
  • var_id: water_class12
  • long_name: Mean of normalised water class 12 membership over the compositing period
  • names: Mean of normalised water class 12 membership over the compositing period
  • var_id: water_class13
  • long_name: Mean of normalised water class 13 membership over the compositing period
  • names: Mean of normalised water class 13 membership over the compositing period
  • var_id: water_class14
  • long_name: Mean of normalised water class 14 membership over the compositing period
  • names: Mean of normalised water class 14 membership over the compositing period
  • var_id: water_class2
  • long_name: Mean of normalised water class 2 membership over the compositing period
  • names: Mean of normalised water class 2 membership over the compositing period
  • var_id: water_class3
  • long_name: Mean of normalised water class 3 membership over the compositing period
  • names: Mean of normalised water class 3 membership over the compositing period
  • var_id: water_class4
  • long_name: Mean of normalised water class 4 membership over the compositing period
  • names: Mean of normalised water class 4 membership over the compositing period
  • var_id: water_class5
  • long_name: Mean of normalised water class 5 membership over the compositing period
  • names: Mean of normalised water class 5 membership over the compositing period
  • var_id: water_class6
  • long_name: Mean of normalised water class 6 membership over the compositing period
  • names: Mean of normalised water class 6 membership over the compositing period
  • var_id: water_class7
  • long_name: Mean of normalised water class 7 membership over the compositing period
  • names: Mean of normalised water class 7 membership over the compositing period
  • var_id: water_class8
  • long_name: Mean of normalised water class 8 membership over the compositing period
  • names: Mean of normalised water class 8 membership over the compositing period
  • var_id: water_class9
  • long_name: Mean of normalised water class 9 membership over the compositing period
  • names: Mean of normalised water class 9 membership over the compositing period
  • var_id: water_class1
  • long_name: Normalised water class 1 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 1 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • long_name: Normalised water class 10 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class10
  • names: Normalised water class 10 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • long_name: Normalised water class 11 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class11
  • names: Normalised water class 11 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • long_name: Normalised water class 12 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class12
  • names: Normalised water class 12 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • long_name: Normalised water class 13 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class13
  • names: Normalised water class 13 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • long_name: Normalised water class 14 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class14
  • names: Normalised water class 14 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class2
  • long_name: Normalised water class 2 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 2 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class3
  • long_name: Normalised water class 3 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 3 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class4
  • long_name: Normalised water class 4 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 4 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class5
  • long_name: Normalised water class 5 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 5 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class6
  • long_name: Normalised water class 6 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 6 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class7
  • long_name: Normalised water class 7 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 7 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class8
  • long_name: Normalised water class 8 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 8 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • var_id: water_class9
  • long_name: Normalised water class 9 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • names: Normalised water class 9 membership, as determined by the fuzzy classification algorithm of Tim Moore (2009) and custom-developed classes to best represent the CCI merged data
  • units: sr-1
  • long_name: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm.
  • var_id: Rrs_412_rmsd
  • names: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm.
  • units: sr-1
  • long_name: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm.
  • var_id: Rrs_443_rmsd
  • names: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm.
  • units: sr-1
  • long_name: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm.
  • var_id: Rrs_490_rmsd
  • names: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm.
  • units: sr-1
  • long_name: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm.
  • var_id: Rrs_510_rmsd
  • names: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm.
  • units: sr-1
  • long_name: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 555 nm.
  • var_id: Rrs_555_rmsd
  • names: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 555 nm.
  • units: sr-1
  • long_name: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 670 nm.
  • var_id: Rrs_670_rmsd
  • names: Root-mean-square-difference of sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 670 nm.
  • units: sr-1
  • long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm.
  • standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air
  • var_id: Rrs_412
  • names: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air, Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm.
  • units: sr-1
  • standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air
  • long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm.
  • var_id: Rrs_443
  • names: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air, Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm.
  • units: sr-1
  • standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air
  • long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm.
  • var_id: Rrs_490
  • names: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air, Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm.
  • units: sr-1
  • standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air
  • long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm.
  • var_id: Rrs_510
  • names: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air, Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm.
  • units: sr-1
  • standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air
  • long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 555 nm.
  • var_id: Rrs_555
  • names: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air, Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 555 nm.
  • units: sr-1
  • standard_name: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air
  • long_name: Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 670 nm.
  • var_id: Rrs_670
  • names: surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air, Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 670 nm.
  • var_id: crs

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • var_id: lat
  • names: latitude
  • units: degrees_east
  • standard_name: longitude
  • var_id: lon
  • names: longitude
  • standard_name: time
  • var_id: time
  • names: time