Five cruises demonstrated significant greenhouse gas fluxes in coastal zones, indicating distinct oceanic patterns.
Key Points
Greenhouse gas fluxes showed significant positive rates in coastal areas, with N2O and CH4 accounting for 30–50% of total flux.
Around 40% of the carbon dioxide uptake is countered in the pelagic ocean, displaying a spatial gradient of coastal enhancement and pelagic compensation.
Critical drivers of GHG dynamics included temperature, oxygen, and nutrient levels across the studied ocean continuum.
The study emphasizes the role of oceanic non-CO2 gases in climate regulation, highlighting a multi-gas synergistic approach.