FN Archimer Export Format
PT J
TI Regionalized global budget of the CO2 exchange at the air-water interface in continental shelf seas
BT 
AF LARUELLE, Goulven G.
   LAUERWALD, Ronny
   PFEIL, Benjamin
   REGNIER, Pierre
AS 1:1,2;2:1,3;3:4;4:1;
FF 1:;2:;3:;4:;
C1 Univ Libre Bruxelles, Dept Earth & Environm Sci, Brussels, Belgium.
   Univ Utrecht, Fac Geosci, Dept Earth Sci Geochem, Utrecht, Netherlands.
   CNRS, Inst Pierre Simon Laplace, FR636, Guyancourt, France.
   Univ Bergen, Bjerknes Ctr Climate Res, Bergen, Norway.
C2 UNIV LIBRE BRUXELLES, BELGIUM
   UNIV UTRECHT, NETHERLANDS
   CNRS, FRANCE
   UNIV BERGEN, NORWAY
IF 3.965
TC 149
UR https://archimer.ifremer.fr/doc/00293/40426/38969.pdf
   https://archimer.ifremer.fr/doc/00293/40426/38970.docx
   https://archimer.ifremer.fr/doc/00293/40426/38971.docx
LA English
DT Article
CR OISO 8
   OISO1
   OISO2
   OISO3-NIVMER98
   OISO4 (VT 46)
   OISO5 (VT 49)
   VT 105 / OISO 17
   VT 108 / OISO-18
   VT 114 / OISO-19
   VT 117 / OISO-20
   VT 120 / OISO-21
   VT 127 / OISO-22
   VT 136 / OISO-23
   VT 51 / OISO 6
   VT 57 / OISO 9
   VT 60 / CARAUS - OISO 10
   VT 62 / CARAUS - OISO 11
   VT 79 / OISO 12
   VT 80 / OISO 13
   VT 81 / OISO 14
   VT 85 / OISO 15
   VT 94 / OISO 16
BO Marion Dufresne
DE ;CO2;coastal ocean;carbon cycle
AB Over the past decade, estimates of the atmospheric CO2 uptake by continental shelf seas were constrained within the 0.18-0.45 Pg C yr(-1) range. However, most of those estimates are based on extrapolations from limited data sets of local flux measurements (n<100). Here we propose to derive the CO2 air-sea exchange of the shelf seas by extracting 310(6) direct surface ocean CO2 measurements from the global database SOCAT (Surface Ocean CO2 Atlas), atmospheric CO2 values from GlobalVIEW and calculating gas transfer rates using readily available global temperature, salinity, and wind speed fields. We then aggregate our results using a global segmentation of the shelf in 45 units and 152 subunits to establish a consistent regionalized CO2 exchange budget at the global scale. Within each unit, the data density determines the spatial and temporal resolutions at which the air-sea CO2 fluxes are calculated and range from a 0.5 degrees resolution in the best surveyed regions to a whole unit resolution in areas where data coverage is limited. Our approach also accounts, for the first time, for the partial sea ice cover of polar shelves. Our new regionalized global CO2 sink estimate of 0.190.05 Pg C yr(-1) falls in the low end of previous estimates. Reported to an ice-free surface area of 2210(6)km(2), this value yields a flux density of 0.7mol C m(-2)yr(-1), similar to 40% more intense than that of the open ocean. Our results also highlight the significant contribution of Arctic shelves to this global CO2 uptake (0.07 Pg C yr(-1)).
PY 2014
PD NOV
SO Global Biogeochemical Cycles
SN 0886-6236
PU Amer Geophysical Union
VL 28
IS 11
UT 000346594100003
BP 1199
EP 1214
DI 10.1002/2014GB004832
ID 40426
ER

EF