FN Archimer Export Format
PT J
TI Coastal-ocean uptake of anthropogenic carbon
BT 
AF BOURGEOIS, Timothee
   ORR, James C.
   RESPLANDY, Laure
   TERHAAR, Jens
   ETHE, Christian
   GEHLEN, Marion
   BOPP, Laurent
AS 1:1;2:1;3:2;4:1;5:3;6:1;7:1;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Univ Paris Saclay, LSCE, IPSL, CEA,CNRS,UVSQ, F-91191 Gif Sur Yvette, France.
   Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
   Inst Pierre Simon Laplace, 4 Pl Jussieu, F-75005 Paris, France.
C2 UNIV PARIS SACLAY, FRANCE
   UNIV CALIF SAN DIEGO, USA
   IPSL, FRANCE
IN DOAJ
IF 3.851
TC 70
UR https://archimer.ifremer.fr/doc/00383/49424/49881.pdf
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
AB Anthropogenic changes in atmosphere-ocean and atmosphere-land CO2 fluxes have been quantified extensively, but few studies have addressed the connection between land and ocean. In this transition zone, the coastal ocean, spatial and temporal data coverage is inadequate to assess its global budget. Thus we use a global ocean biogeochemical model to assess the coastal ocean's global inventory of anthropogenic CO2 and its spatial variability. We used an intermediate resolution, eddying version of the NEMO-PISCES model (ORCA05), varying from 20 to 50 km horizontally, i.e. coarse enough to allow multiple century-scale simulations but finer than coarse-resolution models (similar to 200 km) to better resolve coastal bathymetry and complex coastal currents. Here we define the coastal zone as the continental shelf area, excluding the proximal zone. Evaluation of the simulated air-sea fluxes of total CO2 for 45 coastal regions gave a correlation coefficient R of 0.8 when compared to observation-based estimates. Simulated global uptake of anthropogenic carbon results averaged 2.3 Pg C yr(-1) during the years 1993-2012, consistent with previous estimates. Yet only 0.1 Pg C yr(-1) of that is absorbed by the global coastal ocean. That represents 4.5% of the anthropogenic carbon uptake of the global ocean, less than the 7.5% proportion of coastal-to-global-ocean surface areas. Coastal uptake is weakened due to a bottleneck in offshore transport, which is inadequate to reduce the mean anthropogenic carbon concentration of coastal waters to the mean level found in the open-ocean mixed layer. 
PY 2016
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 13
IS 14
UT 000381212300007
BP 4167
EP 4185
DI 10.5194/bg-13-4167-2016
ID 49424
ER

EF