FN Archimer Export Format PT J TI Observations and mechanisms for the formation of deep equatorial and tropical circulation BT AF MENESGUEN, Claire DELPECH, Audrey MARIN, Frederic CRAVATTE, Sophie SCHOPP, Richard MOREL, Yves AS 1:1;2:2;3:2;4:2;5:1,3;6:2,3; FF 1:PDG-ODE-LOPS-OH;2:;3:;4:;5:;6:; C1 Laboratoire d’Océanographie Physique et Spatiale UMR 6523 CNRS-Ifremer-IRD-UBO, France LEGOS, Université de Toulouse, CNES, CNRS, IRD, Toulouse, France C2 IFREMER, FRANCE IRD, FRANCE CNRS, FRANCE SI BREST SE PDG-ODE-LOPS-OH UM LOPS IN WOS Ifremer UMR WOS Cotutelle UMR DOAJ copubli-france copubli-p187 IF 3.221 TC 24 UR https://archimer.ifremer.fr/doc/00482/59393/62159.pdf LA English DT Article CR CASSIOPEE BO L'Atalante DE ;deep equatorial circulation;deep tropical circulation;zonal jets AB The Intermediate and Deep Equatorial and Tropical Circulations (DEC and DTC) consist of a complex system of zonal jets. This paper attempts at unifying existing observations and theories to present our current understanding of this jets system. Recent in‐situ observations suggesting a continuity between DEC and DTC are confronted against the various generation mechanisms that have been proposed in the literature. The key notion to differentiate these previous studies lies in the so‐called "cascade of mechanisms", i.e. the energy pathway and equilibration processes chain that lead to the jets from their initial energy source. Many studies see the Deep Equatorial Intra‐seasonal Variability (DEIV) as the initial energy source, highlighting its key role in energizing the DEC and DTC. However, critical gaps remain in this cascade of mechanisms and limit substantially our ability to represent the jets in Ocean Global Circulation Models. This paper aims at identifying such gaps and propose future research directions. PY 2019 PD MAR SO Earth And Space Science SN 2333-5084 PU John Wiley & Sons VL 6 IS 3 UT 000464644600003 BP 370 EP 386 DI 10.1029/2018EA000438 ID 59393 ER EF