@article{fdi:010090520,
  title = {{C}oastal trapped waves and tidal mixing control primary production in the tropical {A}ngolan upwelling system},
  author = {{K}oerner, {M}. and {B}randt, {P}. and {I}llig, {S}erena and {D}engler, {M}. and {S}ubramaniam, {A}. and {B}achelery, {M}. {L}. and {K}rahmann, {G}.},
  editor = {},
  language = {{ENG}},
  abstract = {{E}astern boundary upwelling systems are hotspots of marine life and primary production. {T}he strength and seasonality of upwelling in these systems are usually related to local wind forcing. {H}owever, in some tropical upwelling systems, seasonal maxima of productivity occur when upwelling favorable winds are weak. {H}ere, we show that in the tropical {A}ngolan upwelling system (t{AUS}), the seasonal productivity maximum is due to the combined effect of coastal trapped waves ({CTW}s) and elevated tidal mixing on the shelf. {D}uring austral winter, the passage of an upwelling {CTW} displaces the nitracline upward by more than 50 m. {T}hereby, nitrate-rich waters spread onto the shelf, where elevated vertical mixing causes a nitrate flux into the surface mixed layer. {I}nterannual variability of the productivity maximum is strongly correlated to the amplitude of the upwelling {CTW} as seen in sea level data. {G}iven that {CTW}s are connected to equatorial forcing, a predictability of the strength of the productivity maximum is suggested.},
  keywords = {{ATLANTIQUE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{S}cience {A}dvances},
  volume = {10},
  numero = {4},
  pages = {eadj6686 [14 p.]},
  ISSN = {2375-2548},
  year = {2024},
  DOI = {10.1126/sciadv.adj6686},
  URL = {https://www.documentation.ird.fr/hor/fdi:010090520},
}