FN Archimer Export Format
PT J
TI Factors regulating the Great Calcite Belt in the Southern Ocean and its biogeochemical significance
BT 
AF BALCH, William M.
   BATES, Nicholas R.
   LAM, Phoebe J.
   TWINING, Benjamin S.
   ROSENGARD, Sarah Z.
   BOWLER, Bruce C.
   DRAPEAU, Dave T.
   GARLEY, Rebecca
   LUBELCZYK, Laura C.
   MITCHELL, Catherine
   RAUSCHENBERG, Sara
AS 1:1;2:2,3;3:4,5;4:1;5:4,6;6:1;7:1;8:2;9:1;10:1;11:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;
C1 Bigelow Lab Ocean Sci, East Boothbay, ME USA.
   Bermuda Inst Ocean Sci BIOS Inc, St George, Bermuda.
   Univ Southampton, Dept Ocean & Earth Sci, Southampton, Hants, England.
   Woods Hole Oceanog Inst, Dept Marine Chem & Geochem, Woods Hole, MA 02543 USA.
   Univ Calif Santa Cruz, Dept Ocean Sci, Santa Cruz, CA 95064 USA.
   MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
C2 BIGELOW LAB OCEAN SCI, USA
   BIOS, BERMUDA
   UNIV SOUTHAMPTON, UK
   WHOI, USA
   UNIV CALIF SANTA CRUZ, USA
   MIT, USA
IF 4.655
TC 79
UR https://archimer.ifremer.fr/doc/00383/49412/49883.pdf
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
DE ;coccolithophores;trace metals;carbonate chemistry;Southern Ocean;Subantarctic Front;Subtropical Front
AB The Great Calcite Belt (GCB) is a region of elevated surface reflectance in the Southern Ocean (SO) covering similar to 16% of the global ocean and is thought to result from elevated, seasonal concentrations of coccolithophores. Here we describe field observations and experiments from two cruises that crossed the GCB in the Atlantic and Indian sectors of the SO. We confirm the presence of coccolithophores, their coccoliths, and associated optical scattering, located primarily in the region of the subtropical, Agulhas, and Subantarctic frontal regions. Coccolithophore-rich regions were typically associated with high-velocity frontal regions with higher seawater partial pressures of CO2 (pCO(2)) than the atmosphere, sufficient to reverse the direction of gas exchange to a CO2 source. There was no calcium carbonate (CaCO3) enhancement of particulate organic carbon (POC) export, but there were increased POC transfer efficiencies in high-flux particulate inorganic carbon regions. Contemporaneous observations are synthesized with results of trace-metal incubation experiments, Th-234-based flux estimates, and remotely sensed observations to generate amandala that summarizes our understanding about the factors that regulate the location of the GCB.
PY 2016
PD AUG
SO Global Biogeochemical Cycles
SN 0886-6236
PU Amer Geophysical Union
VL 30
IS 8
UT 000388457500001
BP 1124
EP 1144
DI 10.1002/2016GB005414
ID 49412
ER

EF