@article{fdi:010088735,
  title = {{C}omprehensive characterization of {M}arine {H}eatwaves in a coastal {N}orthern {H}umboldt {C}urrent {S}ystem regional model over recent decades},
  author = {{M}ogollón, {R}. and {P}ietri, {A}. and {T}am, {J}. and {C}olas, {F}ran{\c{c}}ois},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this study, a high-resolution hydrodynamic model simulation was used to analyze the three-dimensional characteristics of marine heatwaves ({MHW}s) in the coastal region of the {N}orthern {H}umboldt {C}urrent {S}ystem ({NHCS}) over the period 2000-2019. {T}hree distinct vertical layers were identified. {T}he near-surface layer, extending down to 75 m depth, is identified as the region where both the maximum {MHW} intensity and cumulative intensity are found, predominantly concentrated along the thermocline depth. {T}he intermediate layer, spanning from 75 to 125 m depth, exhibited the longest {MHW} durations and the lowest {MHW} frequencies. {MHW}s in this layer tend to be of moderate intensity and are often associated with {ENSO} variability. {I}n contrast, the deep layer, from 125 to 250 m depth, was characterized by short-lived {MHW}s of low intensity. {T}hese {MHW}s exert a lesser thermal impact on the region. {T}o understand the drivers of {MHW}s, a composite analysis was performed. {T}he results highlighted the significant role exerted by wind-driven anomalies in the life cycle of {MHW}s. {I}t was found that the combined effect of a sluggish coastal upwelling circulation and suppressed oceanic heat loss, as a result of weakened winds, preceded the {MHW} formation. {C}onversely, the strengthening of winds, which enhanced net heat loss, primarily driven by latent heat flux anomalies, and an enhancement of the cooling effect due to the recovery of the coastal upwelling circulation, are key processes in ending a typical {MHW} event in the coastal region. {T}hese findings expand our understanding of the {MHW}s and their associated potential drivers and help to reveal which regions are most susceptible to extreme climate events in one of the most productive marine ecosystems worldwide.},
  keywords = {{M}arine heatwaves ({MHW}s) ; {D}rivers of {MHW}s ; {N}orthern {H}umboldt {C}urrent {S}ystem ; {CROCO} model ; {PACIFIQUE} ; {HUMBOLDT} {COURANT}},
  booktitle = {},
  journal = {{O}cean {M}odelling},
  volume = {186},
  numero = {},
  pages = {102280 [14 p.]},
  ISSN = {1463-5003},
  year = {2023},
  DOI = {10.1016/j.ocemod.2023.102280},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088735},
}