FN Archimer Export Format
PT J
TI Subantarctic Mode Water Formation, Destruction, and Export in the Eddy-Permitting Southern Ocean State Estimate
BT 
AF CEROVECKI, Ivana
   TALLEY, Lynne D.
   MAZLOFF, Matthew R.
   MAZE, Guillaume
AS 1:1;2:1;3:1;4:2;
FF 1:;2:;3:;4:PDG-ODE-LPO;
C1 Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
   IFREMER, Lab Phys Oceans, UMR 6523, CNRS,IRD,UBO, Plouzane, France.
C2 UNIV CALIF SAN DIEGO, USA
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
IF 2.871
TC 56
UR https://archimer.ifremer.fr/doc/00154/26487/24596.pdf
LA English
DT Article
DE ;Atmosphere-ocean interaction;Buoyancy;Fluxes;Ocean circulation
AB Subantarctic Mode Water (SAMW) is examined using the data-assimilating, eddy-permitting Southern Ocean State Estimate, for 2005 and 2006. Surface formation due to air–sea buoyancy flux is estimated using Walin analysis, and diapycnal mixing is diagnosed as the difference between surface formation and transport across 30°S, accounting for volume change with time. Water in the density range 26.5 < σθ < 27.1 kg m−3 that includes SAMW is exported northward in all three ocean sectors, with a net transport of (18.2, 17.1) Sv (1 Sv ≡ 106 m3 s−1; for years 2005, 2006); air–sea buoyancy fluxes form (13.2, 6.8) Sv, diapycnal mixing removes (−14.5, −12.6) Sv, and there is a volume loss of (−19.3, −22.9) Sv mostly occurring in the strongest SAMW formation locations. The most vigorous SAMW formation is in the Indian Ocean by air–sea buoyancy flux (9.4, 10.9) Sv, where it is partially destroyed by diapycnal mixing (−6.6, −3.1) Sv. There is strong export to the Pacific, where SAMW is destroyed both by air–sea buoyancy flux (−1.1, −4.6) Sv and diapycnal mixing (−5.6, −8.4) Sv. In the South Atlantic, SAMW is formed by air–sea buoyancy flux (5.0, 0.5) Sv and is destroyed by diapycnal mixing (−2.3, −1.1) Sv. Peaks in air–sea flux formation occur at the Southeast Indian and Southeast Pacific SAMWs (SEISAMWs, SEPSAMWs) densities. Formation over the broad SAMW circumpolar outcrop windows is largely from denser water, driven by differential freshwater gain, augmented or decreased by heating or cooling. In the SEISAMW and SEPSAMW source regions, however, formation is from lighter water, driven by differential heat loss.
PY 2013
PD JUN
SO Journal Of Physical Oceanography
SN 0022-3670
PU Amer Meteorological Soc
VL 43
IS 7
UT 000329778000017
BP 1485
EP 1511
DI 10.1175/JPO-D-12-0121.1
ID 26487
ER

EF