▪ Abstract The exchange of inert and sparingly soluble gases—including carbon dioxide,
methane, and oxygen—between the atmosphere and oceans is controlled by a thin 20-to …

Bubbles transport methane (CH4) released from the sea bed to the surface while
exchanging gas with the surrounding aqueous environment. The fraction of CH4 released at …

Relationships between wind speed and gas transfer, combined with knowledge of the partial
pressure difference of CO2 across the air‐sea interface are frequently used to determine the …

Observed atmospheric concentrations of CO2 and data on the partial pressures of CO2 in
surface ocean waters are combined to identify globally significant sources and sinks of CO2 …

Partial pressures of CO 2 and CH 4 were measured directly or calculated from pH and
alkalinity or DIC measurements for 25 lakes and 4 rivers on the North Slope of Alaska …

Sulfur hexafluoride (SF6) is primarily of anthropogenic origin but also occurs naturally. The
troposphere concentration of SF6 has increased from a steady state value of 0.054±0.009 to …

Air–water diffusive gas flux is commonly determined using measurements of gas
concentrations and an estimate of gas transfer velocity (k 600) usually derived from wind …

We made direct measurements of the partial pressure of CO 2 (P CO 2) in the tidal-
freshwater portion of the Hudson River Estuary over a 3.5-yr period. At all times the Hudson …

Plankton communities in oligotrophic waters are characteristically dominated by the biomass
of heterotrophs, including bacteria, micro‐, and macrozooplankton. It has been generally …

Gas transfer velocities have been determined for a first‐order stream by performing a 3‐hour
release of the volatile tracer sulfur hexafluoride, SF6, and the nonvolatile tracer tritiated …