Trends in anthropogenic CO2 in water masses of the Subtropical North Atlantic Ocean
Trends in anthropogenic CO2 in water masses of the Subtropical North Atlantic Ocean
复制标题
副热带北大西洋水团中人为二氧化碳的趋势
DOI:
10.1016/j.pocean.2014.11.006
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发表时间:
2015
影响因子:
4.1
通讯作者:
Guallart E
中科院分区:
文献类型:
--
作者:
Guallart E
The variability in the storage of the oceanic anthropogenic CO2(Cant) on decadal timescales is evaluated within the main water masses of the Subtropical North Atlantic along 24.5°N. Inorganic carbon measurements on five cruises of the A05 section are used to assess the changes in Cantbetween 1992 and 2011, using four methods (ΔC∗, TrOCA,φCT0, TTD). We find good agreement between the Cantdistribution and storage obtained using chlorofluorocarbons and CO2measurements in both the vertical and horizontal scales. Cantdistribution shows higher concentrations and greater decadal storage rates in the upper layers with both values decreasing with depth. The greatest enrichment is obserbed in the central water masses, with their upper limb showing a mean annual accumulation of about 1 μmol kg−1yr−1and the lower limb showing, on average, half that value. We detect zonal gradients in the accumulation of Cant. This finding is less clear in the upper waters, where greater variability exists between methods. In accordance with data from time series stations, greater accumulation of Cantis observed in the upper waters of the western basin of the North Atlantic Subtropical Gyre. In intermediate and deep layers, the zonal gradient in the storage of Cantis more robust between methods. The much lower mean storage rates found along the section (<0.25 μmol kg−1yr−1) become more obvious when longitudinal differences in the Cantaccumulation are considered. In particular, west of 70°W the ventilation by the Labrador Sea Water creates a noticeable accumulation rate up to ∼0.5 μmol kg−1yr−1between 1000 and 2500 dbar. If a Transient Stationary State of the Cantdistributions is considered, significant bi-decadal trends in the Cantstorage rates in the deepest North Atlantic waters are detected, in agreement with recent estimations.
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影响因子:
0.7
作者:
L. Mintrop;F. F. Pérèz-F.;M. González-Dávila;J. Santana-Casiano;A. Körtzinger
通讯作者:
L. Mintrop;F. F. Pérèz-F.;M. González-Dávila;J. Santana-Casiano;A. Körtzinger
DOI:
10.5194/bgd-6-4527-2009
发表时间:
2009
期刊:
Biogeosciences Discussions
影响因子:
--
作者:
M. Vázquez;X. A. Padin;A. Ríos;R. Bellerby;F. F. Pérèz
通讯作者:
F. F. Pérèz
影响因子:
2.8
作者:
S. Flecha;F. F. Pérèz;G. Navarro;J. Ruiz;I. Olivé;S. Rodríguez;E. Costas;I. E. Huertas
通讯作者:
I. E. Huertas
影响因子:
4.9
作者:
F. F. Pérèz;M. Vázquez;E. Louarn;X. A. Padin;H. Mercier;A. Ríos
通讯作者:
A. Ríos
影响因子:
2.8
作者:
A. Ríos;A. Velo;P. Pardo;M. Hoppema;F. F. Pérèz
通讯作者:
F. F. Pérèz