FN Archimer Export Format
PT J
TI Quantitative and mechanistic understanding of the open ocean carbonate pump- perspectives for remote sensing and autonomous in situ observation
BT 
AF NEUKERMANS, G.
   BACH, L. T.
   BUTTERLEY, A.
   SUN, Q.
   CLAUSTRE, H.
   FOURNIER, G. R.
AS 1:1,6;2:2;3:2;4:2,5;5:3;6:4;
FF 1:;2:;3:;4:;5:;6:;
C1 Ghent University, Biology Department, MarSens Research Group, Krijgslaan 281 – S8, 9000 Ghent, Belgium
   Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7004, Australia
   Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, LOV, F-06230 Villefranche-sur-Mer, France
   DRDC Valcartier Research Laboratory, Québec, Québec G3J1X5, Canada
   Ghent University, ELIS department, Liquid Crystals and Photonics Group, Technologiepark Zwijnaarde 15, 9052 Zwijnaarde, Belgium.
   Flanders Marine Institute (VLIZ), InnovOcean Campus, Jacobsenstraat 1, 8400 Ostend, Belgium
C2 UNIV GHENT, BELGIUM
   UNIV TASMANIA, AUSTRALIA
   UNIV PARIS 06, FRANCE
   DRDC VALCARTIER RES LAB, CANADA
   UNIV GHENT, BELGIUM
   VLIZ, BELGIUM
IF 12.1
TC 5
UR https://archimer.ifremer.fr/doc/00842/95429/103225.pdf
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
DE ;Ocean carbon cycle;Biological carbon pump;Carbonate pump;Alkalinity pump;Planktonic calcification;Calcium carbonate flux;Autonomous observations;Ocean colour remote sensing
AB The open ocean carbonate pump represents the production and downward flux of particulate inorganic carbon (PIC) in the form of calcium carbonate synthesized by calcifying plankton. This pump operates alongside the organic carbon pump, which concerns the production and downward flux of organic carbon, mostly in the form of particles (POC). While the organic carbon pump draws down atmospheric carbon dioxide, the carbonate pump causes an increase in surface ocean carbon dioxide (CO2), thereby counteracting the organic carbon pump. However, PIC produced by the carbonate pump is of high-density and has been hypothesized to enhance the downward flux of organic carbon, increasing the efficiency of the organic carbon pump. Here, we review our current quantitative and mechanistic understanding of the contemporary open ocean carbonate pump, its counter- and ballast effects. We first examine the relative contributions of the various calcifying plankton groups (coccolithophores, foraminifera, and pteropods) to PIC production and flux based on a global compilation of PIC flux observations. Next, we compare spatial patterns in calcification rates from remote sensing with observations of PIC flux at depth obtained from sediment traps and radiochemical tracers. We then review estimates of the counter effect of the carbonate pump on the partial pressure of CO2, pCO2, in surface waters based on remote sensing studies and estimates of the rain ratio of exported carbon and the amount of CO2 released per PIC precipitated, psi. Next, we review our understanding of the PIC ballast effect and implementations in biogeochemical models. Lastly, we discuss observations of the organic carbon pump with autonomous BioGeoChemicalArgo (BGC-Argo) profiling floats and perspectives for extending observations to the carbonate pump. 
PY 2023
PD APR
SO Earth-science Reviews
SN 0012-8252
PU Elsevier
VL 239
UT 000995447600001
DI 10.1016/j.earscirev.2023.104359
ID 95429
ER

EF