FN Archimer Export Format
PT J
TI A comparative study of total alkalinity and total inorganic carbon near tropical Atlantic coastal regions
BT 
AF Bonou, Frédéric
   Medeiros, Carmen
   Noriega, Carlos
   Araujo, Moacyr
   Hounsou-Gbo, Aubains
   Lefèvre, Nathalie
AS 1:1,2,8;2:7;3:3;4:3,4;5:5;6:6;
FF 1:;2:;3:;4:;5:;6:;
C1 Laboratoire de Physiques et Applications, LPA/ Université Nationale Des Sciences Technologies, Ingénierie Et Mathématiques (UNSTIM), Cotonou, Benin
   International Chair in Mathematical Physics and Applications (ICMPA-Unesco Chair), Université d ́Abomey-Calavi (UAC), Cotonou, Bénin
   Center for Studies and Tests On Risk and Environmental Modeling (CEERMA), Federal University of Pernambuco (UFPE), Av. Arquiterura s/n, Recife, 50740-550, Brazil
   Brazilian Research Network On Global Climate Change, Rede CLIMA, S. José Dos Campos, SP, Brazil
   Instituto de Ciências do Mar (LABOMAR), Universidade Federal do Ceará (UFC), Av. da Abolição, 3207, CE: 60165-081, Fortaleza, Brazil
   Université Pierre Et Marie Curie, 4 place Jussieu, 75252 Cedex 05, Paris, France
   Laboratório de Oceanografia Física Estuarina e Costeira (LOFEC/DOCEAN/CTG), Federal University of Pernambuco, Av. Arquiterura s/n, 50740-550, Recife, Brazil
   Instititut de Recherches Halieutiques et Océanologiques du Bénin, IRHOB, Cotonou, Benin
C2 UNSTIM, BENIN
   UNIV ABOMEY CALAVI, BÉNIN
   UNIV FED PERNAMBUCO, BRAZIL
   REDE CLIMA, BRAZIL
   UNIV FED CEARA, BRAZIL
   UNIV PARIS 06, FRANCE
   UNIV FED PERNAMBUCO, BRAZIL
   IRHOB, BENIN
IF 2.1
TC 0
UR https://archimer.ifremer.fr/doc/00780/89222/95019.pdf
LA English
DT Article
CR AMANDES
   PIRATA
   PLUMAND
BO Antea
DE ;Carbonate system;Tropical Atlantic;West Africa;Brazilian border;Rivers;Coastal regions;Chemical oceanography
AB This paper is based on a comparison of the carbon parameters at the western and eastern borders of the tropical Atlantic using data collected from 55 cruises. Oceanic and coastal data, mainly total alkalinity (TA), total dissolved inorganic carbon (CT), sea surface salinity (SSS) and sea surface temperature (SST), were compiled from different sources. These data were subdivided into three subsets: oceanic data, coastal data and adjacent to the Brazilian (western) and African coastal areas (eastern) data. Significant differences between the TA data (2099.4 ± 286.4 µmol kg−1) at the western and eastern edges (2198 ± 141.9 µmol kg−1) were observed. Differences in the CT values between the western edge (1779.6 ± 236.4 µmol kg−1) and eastern edge (1892.2 ± 94.2 µmol kg−1) were also noted. This pattern was due to the different variabilities in the carbon parameters between the eastern and western border coastal areas and to the biogeochemistry that drives these parameters. In the western coastal area, the physical features of the continental carbon and oceanic waters mixing with the freshwater that flows from the Amazon and Orinoco Rivers to the South American coast are different than the physical features of the water that flows from the Congo, Volta and Niger Rivers in the eastern region. Applying the TA empirical relationship to TA with values of SSS < 35 in the western and eastern regions leads to a higher root mean square error (rmse) in the eastern and western regions. Therefore, most of the existing TA empirical relationships are most useful at the regional scale due to the difference in the water properties of each region. The relationships of TA and CT determined in the western and eastern regions do not reproduce in situ data well, especially at the adjacent edges. This difference is explained by the difference between the African and Brazilian coasts in terms of their carbon parameter characteristics and processes responsible for their variation. Based on the mixing model, it has been shown that the primary productivity in the eastern region is higher than that in the western region. This is one of the reasons why the carbon parameters are higher in the eastern region. For each region studied, an equation for TA is introduced in this study. 
PY 2022
PD AUG
SO Journal Of Coastal Conservation
SN 1400-0350
PU Springer Science and Business Media LLC
VL 26
IS 4
UT 000819413000002
DI 10.1007/s11852-022-00872-5
ID 89222
ER

EF