@article{fdi:010086903,
  title = {{S}patial and seasonal variability of horizontal temperature fronts in the {M}ozambique {C}hannel for both epipelagic and mesopelagic realms},
  author = {{S}udre, {F}loriane and {D}ewitte, {B}oris and {M}azoyer, {C}. and {G}arcon, {V}. and {S}udre, {J}. and {P}enven, {P}ierrick and {R}ossi, {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}ntroduction {O}cean fronts are moving ephemeral biological hotspots forming at the interface of cooler and warmer waters. {I}n the open ocean, this is where marine organisms, ranging from plankton to mesopelagic fish up to megafauna, gather and where most fishing activities concentrate. {F}ronts are critical ecosystems so that understanding their spatio-temporal variability is essential not only for conservation goals but also to ensure sustainable fisheries. {T}he {M}ozambique {C}hannel ({MC}) is an ideal laboratory to study ocean front variability due to its energetic flow at sub-to-mesoscales, its high biodiversity and the currently debated conservation initiatives. {M}eanwhile, fronts detection relying solely on remotely-sensed {S}ea {S}urface {T}emperature ({SST}) cannot access aspects of the subsurface frontal activity that may be relevant for understanding ecosystem dynamics. {M}ethod{I}n this study, we used the {B}elkin and {O}'{R}eilly {A}lgorithm on remotely-sensed {SST} and hindcasts of a high-resolution nested ocean model to investigate the spatial and seasonal variability of temperature fronts at different depths in the {MC}. {R}esults {W}e find that the seasonally varying spatial patterns of frontal activity can be interpreted as resulting from main features of the mean circulation in the {MC} region. {I}n particular, horizontally, temperature fronts are intense and frequent along continental shelves, in islands' wakes, at the edge of eddies, and in the pathways of both {N}orth-{E}ast {M}adagascar {C}urrent ({NEMC}) and {S}outh-{E}ast {M}adagascar {C}urrent ({SEMC}). {I}n austral summer, thermal fronts in the {MC} are mainly associated with the {A}ngoche upwelling and seasonal variability of the {M}ozambique current. {I}n austral winter, thermal fronts in the {MC} are more intense when the {NEMC} and the {S}eychelles-{C}hagos and {S}outh {M}adagascar upwelling cells intensify. {V}ertically, the intensity of temperature fronts peaks in the vicinity of the mean thermocline. {D}iscussion {C}onsidering the marked seasonality of frontal activity evidenced here and the dynamical connections of the {MC} circulation with equatorial variability, our study calls for addressing longer timescales of variability to investigate how ocean ecosystem/front interactions will evolve with climate change.},
  keywords = {fronts ; temperature fronts ; seasonal variability ; mozambique channel ; {ROMS}-{CROCO} ; {B}elkin and {O}'{R}eilly algorithm ; submesoscale ; indian ocean ; {OCEAN} {INDIEN} ; {MOZAMBIQUE} ; {MADAGASCAR} ; {MOZAMBIQUE} {CANAL}},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {9},
  numero = {},
  pages = {1045136 [20 ]},
  year = {2023},
  DOI = {10.3389/fmars.2022.1045136},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086903},
}