FN Archimer Export Format
PT J
TI Fluxes of carbon and nutrients to the Iceland Sea surface layer and inferred primary productivity and stoichiometry
BT 
AF JEANSSON, E.
   BELLERBY, R. G. J.
   SKJELVAN, I.
   FRIGSTAD, H.
   OLAFSDOTTIR, S. R.
   OLAFSSON, J.
AS 1:1;2:1,2;3:1,3;4:4;5:5;6:5,6;
FF 1:;2:;3:;4:;5:;6:;
C1 Uni Res Climate, Bergen, Norway.
   Norwegian Inst Water Res NIVA, Bergen, Norway.
   Univ Bergen, Inst Geophys, Bergen, Norway.
   Norwegian Environm Agcy, Oslo, Norway.
   Marine Res Inst, IS-121 Reykjavik, Iceland.
   Univ Iceland, Inst Earth Sci, Reykjavik, Iceland.
C2 UNI RES BERGEN, NORWAY
   NIVA, NORWAY
   UNIV BERGEN, NORWAY
   NORWEGIAN ENVIRONM AGCY, NORWAY
   MAR RES INST, ICELAND
   UNIV ICELAND, ICELAND
IN DOAJ
IF 3.7
TC 8
UR https://archimer.ifremer.fr/doc/00256/36742/35343.pdf
LA English
DT Article
AB This study evaluates long-term mean fluxes of carbon and nutrients to the upper 100m of the Iceland Sea. The study utilises hydro-chemical data from the Iceland Sea time series station (68.00 degrees N, 12.67 degrees W), for the years between 1993 and 2006. By comparing data of dissolved inorganic carbon (DIC) and nutrients in the surface layer (upper 100 m), and a sub-surface layer (100-200 m), we calculate monthly deficits in the surface, and use these to deduce the long-term mean surface layer fluxes that affect the deficits: vertical mixing, horizontal advection, air-sea exchange, and biological activity. The deficits show a clear seasonality with a minimum in winter, when the mixed layer is at the deepest, and a maximum in early autumn, when biological uptake has removed much of the nutrients. The annual vertical fluxes of DIC and nitrate amounts to 2.9 +/- 0.5 and 0.45 +/- 0.09 mol m(-2) yr(-1), respectively, and the annual air-sea uptake of atmospheric CO2 is 4.4 +/- 1.1 mol C m(-2) yr(-1). The biologically driven changes in DIC during the year relates to net community production (NCP), and the net annual NCP corresponds to export production, and is here calculated as 7.3 +/- 1.0 mol C m(-2) yr(-1). The typical, median C : N ratio during the period of net community uptake is 9.0, and clearly higher than the Redfield ratio, but is varying during the season.
PY 2015
SO Biogeosciences
SN 1726-4170
PU Copernicus Gesellschaft Mbh
VL 12
IS 3
UT 000349793100018
BP 875
EP 885
DI 10.5194/bg-12-875-2015
ID 36742
ER

EF