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Dataset

 

BICEP / NCEO: Monthly global Phytoplankton Carbon, between 1998-2020 at 9 km resolution (derived from the Ocean Colour Climate Change Initiative v5.0 dataset)

Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2021-12-21
DOI Publication Date: 2021-12-22
Download Stats: last 12 months

Abstract

This dataset contains monthly global carbon products for pico-, nano- and microphytoplankton (C_picophyto, C_nanophyto and C_microphyto, respectively, in mg C m-3) and the total phytoplankton community (C_phyto in mg C m-3) for the period of 1998 to 2020 at 9 km spatial resolution.

A spectrally-resolved photoacclimation model was unified with a primary production model that simulated photosynthesis as a function of irradiance using a two-parameter photosynthesis versus irradiance (P-I) function to estimate the carbon content of marine phytoplankton based on ocean-colour remote sensing products (Sathyendranath et al. 2020 and references therein for details). The photoacclimation model contains a maximum chlorophyll-to-carbon ratio for three different phytoplankton size classes (pico-, nano- and microphytoplankton) that was inferred from field data, as in Sathyendranath et al. (2020). Chlorophyll-a products were obtained from the European Space Agency (ESA) Ocean Colour Climate Change Initiative (OC-CCI v5.0 dataset). Photosynthetic Active Radiation (PAR) products were obtained from the National Aeronautics and Space Administration (NASA) and were corrected for inter-sensor bias in products. Mixed Layer Depth (MLD) was obtained from the French Research Institute for Exploration of the Sea (Ifremer). In situ datasets P-I parameters were incorporated as described in Kulk et al. (2020).

The phytoplankton carbon products were generated as part of the ESA Biological Pump and Carbon Exchange Processes (BICEP) project. Support from the Simons Foundation grant ‘Computational Biogeochemical Modeling of Marine Ecosystems’ (CBIOMES, number 549947) and from the National Centre of Earth Observation (NCEO) is acknowledged.

Data are provided as netCDF files containing carbon products for pico-, nano- and microphytoplankton (C_picophyto, C_nanophyto and C_microphyto, respectively, in mg C m-3) and the total phytoplankton community (C_phyto in mg C m-3) for the period of 1998 to 2020 at 9 km spatial resolution. Additional variables that were used for the calculation of the phytoplankton carbon products are also provided, including chlorophyll-a (chl_a in mg m-3), photosynthetically activate radiation (par, in µmol photons m-2 d-1), mixed layer depth (mld in m) and the mean spectral nondimensional irradiance (mean_spectral_i_star).

References:

Sathyendranath, S.; Platt, T.; Kovač, Ž.; Dingle, J.; Jackson, T.; Brewin, R.J.W.; Franks, P.; Marañón, E.; Kulk, G.; Bouman, H.A. Reconciling models of primary production and photoacclimation. Applies Optics, 2020, 59, C100. doi.org/10.1364/AO.386252

Kulk, G.; Platt, T.; Dingle, J.; Jackson, T.; Jönsson, B.F.; Bouman, H.A., Babin, M.; Doblin, M.; Estrada, M.; Figueiras, F.G.; Furuya, K.; González, N.; Gudfinnsson, H.G.; Gudmundsson, K.; Huang, B.; Isada, T.; Kovač, Ž.; Lutz, V.A.; Marañón, E.; Raman, M.; Richardson, K.; Rozema, P.D.; Van de Poll, W.H.; Segura, V.; Tilstone, G.H.; Uitz, J.; van Dongen-Vogels, V.; Yoshikawa, T.; Sathyendranath S. Primary production, an index of climate change in the ocean: Satellite-based estimates over two decades. Remote Sens. 2020, 12,826. doi:10.3390/rs12050826

Citable as:  Sathyendranath, S.; Platt, T.; Kovač, Ž.; Dingle, J.; Jackson, T.; Brewin, R.J.W.; Franks, P.; Kulk, G.; Bouman, H.A. (2021): BICEP / NCEO: Monthly global Phytoplankton Carbon, between 1998-2020 at 9 km resolution (derived from the Ocean Colour Climate Change Initiative v5.0 dataset). NERC EDS Centre for Environmental Data Analysis, 22 December 2021. doi:10.5285/6a6ccbb8ef2645308a60dc47e9b8b5fb. http://dx.doi.org/10.5285/6a6ccbb8ef2645308a60dc47e9b8b5fb
Abbreviation: Not defined
Keywords: phytoplankton, carbon, ocean colour, remote sensing

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://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data were produced by the Plymouth Marine Laboratory and supplied for archiving at the Centre for Environmental Data Analysis (CEDA). The research underpinning the work was supported by the European Space Agency (ESA) Biological Pump and Carbon Export Processes (BICEP) project and the product generation was supported by the National Centre for Earth Observation (NCEO).

Further details on the used methods can be found in Sathyendranath et al. (2020).

Sathyendranath, S.; Platt, T.; Kovač, Ž.; Dingle, J.; Jackson, T.; Brewin, R.J.W.; Franks, P.; Marañón, E.; Kulk, G.; Bouman, H.A. Reconciling models of primary production and photoacclimation. Applies Optics, 2020, 59, C100. doi.org/10.1364/AO.386252

Data Quality:
The satellite-based estimates of phytoplankton carbon are consistent with in situ data (Figure 7, Sathyendranath et al. 2020) and the theoretical model used to generate the products compared well with results from earlier published empirical models (Figure 8, Sathyendranath et al. 2020). Further details are provided in Sathyendranath et al. (2020).
File Format:
Data are in NetCDF format

Process overview

This dataset was generated by the computation detailed below.
Title Marine phytoplankton carbon
Abstract A spectrally-resolved photoacclimation model was unified with a primary production model that simulated photosynthesis as a function of irradiance using a two-parameter photosynthesis versus irradiance (P-I) function to estimate the carbon content of marine phytoplankton based on ocean-colour remote sensing products (Sathyendranath et al. 2020 and references therein for details). The photoacclimation model contains a maximum chlorophyll-to-carbon ratio for three different phytoplankton size classes (pico-, nano- and microphytoplankton) that was inferred from field data. Chlorophyll-a products were obtained from the European Space Agency (ESA) Ocean Colour Climate Change Initiative (OC-CCI v5). Photosynthetic Active Radiation (PAR) products were obtained from the National Aeronautics and Space Administration (NASA) and were corrected for inter-sensor bias in products. Mixed Layer Depth (MLD) was obtained from the French Research Institute for Exploration of the Sea (Ifremer). In situ datasets of chlorophyll-a profile parameters and P-I parameters were incorporated as described in Kulk et al. (2020) Sathyendranath, S.; Platt, T.; Kovač, Ž.; Dingle, J.; Jackson, T.; Brewin, R.J.W.; Franks, P.; Marañón, E.; Kulk, G.; Bouman, H.A. Reconciling models of primary production and photoacclimation. Applies Optics, 2020, 59, C100. doi.org/10.1364/AO.386252 Kulk, G.; Platt, T.; Dingle, J.; Jackson, T.; Jönsson, B.F.; Bouman, H.A., Babin, M.; Doblin, M.; Estrada, M.; Figueiras, F.G.; Furuya, K.; González, N.; Gudfinnsson, H.G.; Gudmundsson, K.; Huang, B.; Isada, T.; Kovac, Z.; Lutz, V.A.; Marañón, E.; Raman, M.; Richardson, K.; Rozema, P.D.; Van de Poll, W.H.; Segura, V.; Tilstone, G.H.; Uitz, J.; van Dongen-Vogels, V.; Yoshikawa, T.; Sathyendranath S. Primary production, an index of climate change in the ocean: Satellite-based estimates over two decades. Remote Sens. 2020, 12, 826. doi:10.3390/rs12050826
Input Description None
Output Description None
Software Reference None
  • standard_name: mass_concentration_of_chlorophyll_a_in_sea_water
  • long_name: Chlorophyll-a
  • units: mg C m-3
  • var_id: chl_a
  • names: mass_concentration_of_chlorophyll_a_in_sea_water, Chlorophyll-a
  • units: non-dimensional
  • long_name: Mean Spectral Nondimensional Irradiance (I*)
  • standard_name: mean_spectral_nondimensional_irradiance
  • var_id: mean_spectral_i_star
  • names: Mean Spectral Nondimensional Irradiance (I*), mean_spectral_nondimensional_irradiance
  • units: mg C m-3
  • long_name: Microphytoplankton Carbon
  • standard_name: mass_concentration_of_microphytoplankton_expressed_as_carbon_in_sea_water
  • var_id: C_microphyto
  • names: Microphytoplankton Carbon, mass_concentration_of_microphytoplankton_expressed_as_carbon_in_sea_water
  • units: m
  • var_id: mld
  • standard_name: mixed_layer_depth
  • long_name: Mixed Layer Depth
  • names: mixed_layer_depth, Mixed Layer Depth
  • units: mg C m-3
  • long_name: Nanophytoplankton Carbon
  • standard_name: mass_concentration_of_nanophytoplankton_expressed_as_carbon_in_sea_water
  • var_id: C_nanophyto
  • names: Nanophytoplankton Carbon, mass_concentration_of_nanophytoplankton_expressed_as_carbon_in_sea_water
  • long_name: Photosynthetically Active Radiation
  • standard_name: surface_downwelling_photosynthetic_photon_flux_in_sea_water
  • units: mol photons m-2 d-1
  • var_id: par
  • names: Photosynthetically Active Radiation, surface_downwelling_photosynthetic_photon_flux_in_sea_water
  • units: mg C m-3
  • long_name: Picophytoplankton Carbon
  • standard_name: mass_concentration_of_picophytoplankton_expressed_as_carbon_in_sea_water
  • var_id: C_picophyto
  • names: Picophytoplankton Carbon, mass_concentration_of_picophytoplankton_expressed_as_carbon_in_sea_water
  • units: mg C m-3
  • long_name: Total Phytoplankton Carbon
  • standard_name: mass_concentration_of_phytoplankton_expressed_as_carbon_in_sea_water
  • var_id: C_phyto
  • names: Total Phytoplankton Carbon, mass_concentration_of_phytoplankton_expressed_as_carbon_in_sea_water

Co-ordinate Variables

  • standard_name: latitude
  • var_id: latitude
  • long_name: latitude
  • units: degrees north
  • names: latitude
  • standard_name: longitude
  • var_id: longitude
  • long_name: longitude
  • units: degrees east
  • names: longitude
  • long_name: time
  • standard_name: time
  • var_id: time
  • names: time
Coverage
Temporal Range
Start time:
1998-01-01T00:00:00
End time:
2020-12-31T23:59:59
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°