TY - JOUR T1 - Decadal fCO(2) trends in global ocean margins and adjacent boundary current-influenced areas A1 - Wang,Hongjie A1 - Hu,Xinping A1 - Cai,Wei-Jun A1 - Sterba-Boatwright,Blair AD - Texas A&M Univ Corpus Christi, Dept Phys & Environm Sci, Corpus Christi, TX 78412 USA. AD - Univ Delaware, Sch Marine Sci & Policy, Newark, DE USA. AD - Texas A&M Univ Corpus Christi, Dept Math & Stat, Corpus Christi, TX USA. UR - https://archimer.ifremer.fr/doc/00662/77393/ DO - 10.1002/2017GL074724 N2 - Determination of the rate of change of sea surface CO2 fugacity (fCO(2)) is important, as the fCO(2) gradient between the atmosphere and the ocean determines the direction of CO2 flux and hence the fate of this greenhouse gas. Using a newly available, community-based global CO2 database (Surface Ocean CO2 Atlas Version 3 coastal data set) and a newly developed statistical method, we report that the global ocean margins (within 400km offshore, 30 degrees S-70 degrees N) fCO(2) temporal trends on decadal time scales (1.931.59atmyr(-1)) closely follow the atmospheric fCO(2) increase rate (1.900.06atmyr(-1)) in the Northern Hemisphere but are lower (1.350.55atmyr(-1)) in the Southern Hemisphere, reflecting dominant atmospheric forcing in conjunction with different warming rates in the two hemispheres. In addition to the atmospheric fCO(2) forcing, a direct warming effect contributes more to fCO(2) increase in the western boundary current-influenced areas, while intensified upwelling contributes more to fCO(2) increase in eastern boundary current-influenced areas. Y1 - 2017/09 PB - Amer Geophysical Union JF - Geophysical Research Letters SN - 0094-8276 VL - 44 IS - 17 SP - 8962 EP - 8970 ID - 77393 ER -