FN Archimer Export Format
PT J
TI The equatorial thermostad and subsurface countercurrents in the light of the dynamics of atmospheric Hadley cells
BT 
AF MARIN, Frederic
   HUA, Bach-Lien
   WACONGNE, Sophie
AS 1:;2:;3:;
FF 1:PDG-DRO-UMLPO;2:PDG-DRO-DOPS-LPO;3:;
C1 IFREMER, CNRS, Lab Phys Oceans, UBO, F-29280 Plouzane, France.
   Florida State Univ, Dept Oceanog, Tallahassee, FL 32306 USA.
C2 IFREMER, FRANCE
   UNIV FLORIDA STATE, USA
SI BREST
SE PDG-DRO-UMLPO
   PDG-DRO-DOPS-LPO
IN WOS Ifremer jusqu'en 2018
IF 1.438
TC 20
UR https://archimer.ifremer.fr/doc/2000/publication-804.pdf
LA English
DT Article
DE ;Subthermocline region;Thermostad;Oceanic circulation
AB The simple Held and Hou (1980) nearly inviscid model of the axisymmetric atmospheric circulation, rationalizing the existence of Hadley cells, Jet Streams, and tropical homogenization of potential temperature and vorticity, is adapted to the oceanic subthermocline region. The meridional profile of radiative equilibrium temperature, which provides the driving in the atmospheric case, is replaced, in the oceanic case, by the large-scale equatorial doming of the thermocline. The meridional structure of the equatorial thermostad and the existence, at its poleward flanks, of eastward subsurface countercurrents coincident with sharp potential vorticity gradients are thus explained via angular momentum redistribution by secondary ageostrophic over-turning cells in the meridional plane. Taking into account the existence of the equatorial undercurrent within the thermocline has little effect on the overall structure of the subthermocline solution at a given longitude, even though homogenization of properties is less efficient.
PY 2000
PD MAY
SO Journal of Marine Research
SN 0022-2402
PU Yale University
VL 58
IS 3
UT 000088703100003
BP 405
EP 437
DI 10.1357/002224000321511098
ID 804
ER

EF