Surface ocean carbon fields (original) (raw)
Overview
This product corresponds to a L4 time series of monthly global reconstructed surface ocean pCO2, air-sea fluxes of CO2, pH, total alkalinity, dissolved inorganic carbon, saturation state with respect to calcite and aragonite, and associated uncertainties on a 0.25° x 0.25° regular grid. The product is obtained from an ensemble-based forward feed neural network approach mapping situ data for surface ocean fugacity (SOCAT data base, Bakker et al. 2016, https://www.socat.info/) and sea surface salinity, temperature, sea surface height, chlorophyll a, mixed layer depth and atmospheric CO2 mole fraction. Sea-air flux fields are computed from the air-sea gradient of pCO2 and the dependence on wind speed of Wanninkhof (2014). Surface ocean pH on total scale, dissolved inorganic carbon, and saturation states are then computed from surface ocean pCO2 and reconstructed surface ocean alkalinity using the CO2sys speciation software.
DOI (product): https://doi.org/10.48670/moi-00047
References:
- Chau, T. …
Read more
Documentation
Classification
Full name
Surface ocean carbon fields
Product ID
MULTIOBS_GLO_BGC_CARBON_SURFACE_MYNRT_015_008
Source
In-situ observations
Spatial extent
Global OceanLat -89.87° to 89.88°Lon -179.87° to 179.88°
Spatial resolution
0.25° × 0.25°
Temporal extent
1 Jan 1985 to 1 May 2026
Temporal resolution
Monthly
Variables
Aragonite saturation state in sea waterCalcite saturation state in sea waterDissolved inorganic carbon in sea waterSea water ph reported on total scaleSurface downward mass flux of carbon dioxide expressed as carbonSurface partial pressure of carbon dioxide in sea waterTotal alkalinity in sea waterUncertainty aragonite saturation state in sea waterUncertainty calcite saturation state in sea waterUncertainty dissolved inorganic carbon in sea waterUncertainty sea water ph reported on total scaleUncertainty surface downward mass flux of carbon dioxide expressed as carbonUncertainty surface partial pressure of carbon dioxide in sea waterUncertainty total alkalinity in sea water
Blue markets
Science & Innovation
Coordinate reference system
WGS 84 / World Mercator (EPSG 3395)
Update frequency
Annually – _The 20th of the following month at 12:00 UTC_Monthly
Originating centre
LSCE (France)
Last metadata update
31 March 2026
Spotted an error? Send us a note through the chat!