FN Archimer Export Format
PT J
TI Observed Characteristics and Vertical Structure of Mesoscale Eddies in the Southwest Tropical Pacific
BT 
AF KEPPLER, Lydia
   CRAVATTE, Sophie
   CHAIGNEAU, Alexis
   PEGLIASCO, Cori
   GOURDEAU, Lionel
   SINGH, Awnesh
AS 1:1,2,3;2:4;3:4;4:4;5:4;6:1;
FF 1:;2:;3:;4:;5:;6:;
C1 USP, PaCE SD, Suva, Fiji.
   Max Planck Inst Meteorol, Ocean Earth Syst, Hamburg, Germany.
   IMPRS ESM, Hamburg, Germany.
   Univ Toulouse, CNRS, CNES, IRD,LEGOS,UPS, Toulouse, France.
C2 UNIV SOUTH PACIFIC, FIJI
   MAX PLANCK INST METEOROL, GERMANY
   IMPRS ESM, GERMANY
   UNIV TOULOUSE, FRANCE
IF 3.235
TC 36
UR https://archimer.ifremer.fr/doc/00489/60039/63314.pdf
LA English
DT Article
CR LOSS
BO Alis
DE ;mesoscale eddies;southwest Pacific;argo floats;satellite altimetry
AB In the Southwest Pacific Ocean, waters transit from the subtropical gyre before being redistributed equatorward and poleward. While the mean pathways are known, the contribution to the mixing and transport of the water from mesoscale eddies has not been comprehensively investigated. In this research, satellite altimetry data, combined with an eddy detection and tracking algorithm is used to investigate the distribution and surface characteristics of mesoscale eddies in this region of complex bathymetry (10 degrees S-30 degrees S, 140 degrees E-190 degrees E). Detected eddies are then colocalized with in situ data from Argo floats to determine their vertical structure and the effect of eddies on the water masses. The numerous islands affect the eddy behavior as most eddies are formed in the lee of islands, propagate westward and decay when encountering shallow bathymetry. Eddies are sparse and short-lived in the tropical area north of Fiji, impacting only the top 200 meters of water. They do not appear to be able to trap and transport waters in this region. In the Coral Sea, a region of lateral shear between currents transporting waters of different origins, eddies are more numerous and energetic. They affect the water properties down to at least 500 m depth, and anticyclonic eddies trap water to approximate to 200 m, contributing to the upper thermocline waters mixing and transport. South of New Caledonia, mesoscale eddies are ubiquitous, with typical lifetimes longer than 5 months. They affect the temperature, salinity, and velocities down to approximate to 1,000 m depth, and weakly contribute to the mixing of lower thermocline waters. 
PY 2018
PD APR
SO Journal Of Geophysical Research-oceans
SN 2169-9275
PU Amer Geophysical Union
VL 123
IS 4
UT 000434131900023
BP 2731
EP 2756
DI 10.1002/2017JC013712
ID 60039
ER

EF