FN Archimer Export Format
PT J
TI Ocean acidification in the subpolar North Atlantic: rates and mechanisms controlling pH changes
BT 
AF GARCIA-IBANEZ, Maria Isabel
   ZUNINO, Patricia
   FROB, Friederike
   CARRACEDO, Lidia
   RIOS, Aida F.
   MERCIER, Herle
   OLSEN, Are
   PEREZ, Fiz F
AS 1:1;2:2;3:3,4;4:5;5:;6:6;7:3,4;8:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 CSIC, IIM, E-36208 Vigo, Spain.
   UBO, IRD, IFREMER, Lab Oceanog Phys & Spatiale,UMR 6523,CNRS,Infreme, CS 10070, Plouzane, France.
   Univ Bergen, Inst Geophys, N-5007 Bergen, Norway.
   Bjerknes Ctr Climate Res, N-5007 Bergen, Norway.
   Univ Vigo, Fac Marine Sci, E-36200 Vigo, Spain.
   UBO, IRD, IFREMER, CNRS,Lab Oceanog Phys & Spatiale,UMR 6523,Ifremer, CS 10070, Plouzane, France.
C2 CSIC, SPAIN
   IFREMER, FRANCE
   UNIV BERGEN, NORWAY
   BCCR, NORWAY
   UNIV VIGO, SPAIN
   UBO, FRANCE
UM LOPS
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-europe
   copubli-univ-france
IF 3.851
TC 20
UR https://archimer.ifremer.fr/doc/00343/45443/44968.pdf
   https://archimer.ifremer.fr/doc/00343/45443/44969.pdf
LA English
DT Article
CR GEOVIDE
   OVIDE 1
   OVIDE 2
   OVIDE 3
   OVIDE 4
   OVIDE 5
BO Pourquoi pas ?
   Thalassa
   Maria S. Merian
AB Repeated hydrographic sections provide critically needed data on and understanding of changes in basin-wide ocean CO2 chemistry over multi-decadal timescales. Here, high-quality measurements collected at twelve cruises carried out along the same track between 1991 and 2015 have been used to determine long-term changes in ocean CO2 chemistry and ocean acidification in the Irminger and Iceland basins of the North Atlantic Ocean. Trends were determined for each of the main water masses present and are discussed in the context of the basin-wide circulation. The pH has decreased in all water masses of the Irminger and Iceland basins over the past 25 years with the greatest changes in surface and intermediate waters (between −0.0010 ± 0.0001 and −0.0018 ± 0.0001 pH units yr−1). In order to disentangle the drivers of the pH changes, we decomposed the trends into their principal drivers: changes in temperature, salinity, total alkalinity (AT) and total dissolved inorganic carbon (both its natural and anthropogenic components). The increase in anthropogenic CO2 (Cant) was identified as the main agent of the pH decline, partially offset by AT increases. The acidification of intermediate waters caused by Cant uptake has been reinforced by the aging of the water masses over the period of our analysis. The pH decrease of the deep overflow waters in the Irminger basin was similar to that observed in the upper ocean and was mainly linked to the Cant increase, thus reflecting the recent contact of these deep waters with the atmosphere.
PY 2016
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 13
IS 12
UT 000379427700013
BP 3701
EP 3715
DI 10.5194/bg-13-3701-2016
ID 45443
ER

EF