SeaFlux v2023: Harmonized Global Sea-Air CO2 Fluxes

SeaFlux v2023 is a harmonized dataset of global sea-air carbon dioxide fluxes, calculated using a standardized approach to reduce methodological errors. It provides multiple components of the flux calculation, including sea surface pCO2 from six products, gas transfer velocity from five wind products, and atmospheric pCO2. The dataset is designed for comparing ocean carbon sink estimates across different data sources and methodologies.

Use Cases

• Comparing ocean CO2 sink estimates across six different surface pCO2 data products.
• Analyzing the sensitivity of global CO2 flux calculations to five different wind speed products.
• Validating and calibrating earth system model components related to air-sea gas exchange.
• Investigating spatial and temporal patterns in the ocean carbon sink using a standardized, multi-source framework.

Strengths

• Provides harmonized fluxes from six distinct surface pCO2 products and five wind products, enabling robust uncertainty analysis.
• Uses a standardized calculation approach (FCO2=K0*Kw*(pCO2sea-pCO2atm)*(1-ice)) to reduce methodological discrepancies.
• Includes globally integrated sea-air CO2 fluxes, facilitating large-scale carbon budget studies.

Limitations

• Key metadata such as temporal coverage, spatial resolution, and exact row/column counts are not provided in the available descriptions.
• The dataset's size and specific file formats are unknown, which may complicate data handling.
• Relies on inferred data types and structure from descriptions rather than explicit column listings.

Provenance

Source

Luke Gregor, ETH Zurich

Collection Method

Fluxes calculated by combining multiple public data products (e.g., SOCOM pCO2, NOAA atmospheric CO2, OISST, EN4, various reanalysis winds) using a standardized parameterization.

Geography

Global ocean