FN Archimer Export Format
PT J
TI Distribution and inventory of anthropogenic CO(2) in the Southern Ocean: Comparison of three data-based methods
BT 
AF LO MONACO, C
   GOYET, C
   METZL, N
   POISSON, A
   TOURATIER, F
AS 1:1;2:2;3:1;4:1;5:2;
FF 1:;2:;3:;4:;5:;
C1 Univ Paris 06, Lab Oceanog & Climat Expt & Approches Numer, F-75252 Paris, France.
   Univ Perpignan, Lab Biophys & Dynam Syst Integres, F-66860 Perpignan, France.
C2 UNIV PARIS 06, FRANCE
   UNIV PERPIGNAN, FRANCE
IF 2.784
TC 43
UR https://archimer.ifremer.fr/doc/00233/34405/32827.pdf
LA English
DT Article
CR CIVA 2 - MD 103
   MINERVE 02-03 (R0,R2,R4)
   MINERVE 03-04 (R0,R1,R3)
   MINERVE 04-05 (R0,R2,R4)
   MINERVE 96
   MINERVE 97
   OISO 8
   OISO1
   OISO2
   OISO3-NIVMER98
   OISO4 (VT 46)
   OISO5 (VT 49)
   VT 51 / OISO 6
   VT 57 / OISO 9
   VT 60 / CARAUS - OISO 10
   VT 62 / CARAUS - OISO 11
BO Marion Dufresne
   L'Astrolabe
DE ;anthropogenic carbon;Southern Ocean;WOCE
AB The Southern Ocean is thought to play an important role in the context of global warming and anthropogenic emissions of CO(2) due to its high sensitivity to both climate change and changes in the carbon cycle. Assessing the penetration of anthropogenic CO(2) (C(ant)) into the Southern Ocean is therefore highly relevant to reduce the uncertainties attached to both the present knowledge of anthropogenic carbon inventories and predictions made by current ocean carbon models. This study compares different data-based approaches for estimating the distribution of C(ant) in the ocean: a recently developed method based on the composite Tracer Combining Oxygen, Inorganic Carbon, and Total Alkalinity (TrOCA) and the "historical'' back-calculation methods (the so-called Delta C* and preformed dissolved inorganic carbon methods). Note that the back-calculation technique requires special care when used in the Southern Ocean, where surface oxygen can significantly deviate from equilibrium with the atmosphere. All three methods were applied to data collected at the Indian-Atlantic boundary (WOCE line I6), where significant transient tracer concentrations were observed in deep and bottom waters. North of 50 degrees S, distribution and inventories of C(ant) are coherent with previous data-based and model estimates, but we found larger storage of C(ant) south of 50 degrees S as compared to the midlatitude region. In that, our results disagree with most previous estimates and suggest that the global inventory of anthropogenic CO(2) in the Southern Ocean could be much larger than what is currently believed.
PY 2005
PD SEP
SO Journal Of Geophysical Research-oceans
SN 0148-0227
PU Amer Geophysical Union
VL 110
IS C9/C09S02
UT 000232111200002
BP 1
EP 12
DI 10.1029/2004JC002571
ID 34405
ER

EF