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Cited by 41Oceanographic and Atmospheric ProcessesMeteorological Phenomena and SimulationsClimate variability and models

Impact of a coastal-trapped wave on the near-coastal circulation of the Peru upwelling system from glider data

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Pietri, Alice, Echevin, Vincent, Testor, Pierre, Chaigneau, Alexis, Mortier, Laurent, Grados, Carmen, Albert, Aurélie·2014·Journal of Geophysical Research: Oceans
DOI 10.1002/2013jc009270
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Abstract

alongshore velocity data from a glider repetitive section off the coast of Peru (14°S) are used to study the cross-shore structure and temporal variability of the Peru current system during a 5 week period in April-May 2010. Besides providing substantial information on the surface frontal jet associated with the Peru Coastal Current and the surfacing Peru-Chile Undercurrent that flows poleward trapped on the continental shelf and slope, the glider data reveal the presence of an intense deep equatorward current, which transports up to ˜2.5 Sv. The dynamics of this current are investigated using an eddy-resolving regional model. The variability of the vertically sheared alongshore flow is shown to be related to the passage of a poleward propagating coastal-trapped wave likely of equatorial origin. Solutions from a two-dimensional, linear, coastal wave model suggest that the alongshore current observed vertical structure is associated with the second and third baroclinic modes of the coastal-trapped wave.

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Crossref · 10.1002/2013jc009270

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  • Changes in wind stress and stratification might be complementary or competitive for upwelling intensity in a global warming scenario.

    “Consequently, changes in wind stress and stratification might be complementary or competitive for the upwelling intensity in a global warming scenario (Bachèlery et al., 2016;Pietri et al., 2014).”

    From Recent Trends in SST, Chl‐<i>a</i>, Productivity and Wind Stress in Upwelling and Open Ocean Areas in the Upper Eastern North Atlantic Subtropical Gyre (2021) · cites this paper as Pietri et al., 2014

    The Discussion and Conclusions (page not provided) link a short-term increase in alongshore wind stress off Peru to changes consistent with wind-driven upwelling. The passages do not address how changes in stratification might complement or compete with wind-stress changes for upwelling intensity under global warming. (LLM, conf=0.79)

    Experimental — accuracy not yet measured

  • Coastal trapped waves can change water column stratification and cause anomalies affecting productivity.

    “Coastal trapped waves can also change the water column stratification and cause anomalies affecting the productivity (Bachèlery et al., 2016;Echevin et al., 2014;Pietri et al., 2014;Rykaczewski & Dunne, 2010).”

    From Recent Trends in SST, Chl‐<i>a</i>, Productivity and Wind Stress in Upwelling and Open Ocean Areas in the Upper Eastern North Atlantic Subtropical Gyre (2021) · cites this paper as Pietri et al., 2014

    Section 5 (page unavailable) links coastal-trapped waves to sea-level and velocity anomalies. Section 2.1 (page unavailable) says the model used here was originally developed to study their impact on near-surface primary productivity. The paper uses mean stratification to calculate wave modes in Section 6, but the passages do not show that the waves change water-column stratification or establish a stratification-to-productivity link. (LLM, conf=0.82)

    Experimental — accuracy not yet measured

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Cites

Flagged first, then by citations

Research works printed but not linked: 24

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  2. Battisti, D. S., and B. M. Hickey (1984), Application of remote wind-forced coastal trapped wave theory to the Oregon and Washington Coasts, J. Phys. Oceanogr., 14, 887-903, doi:10.1175/1520-0485(1984)014. · DOI
  3. Belmadani, A., V. Echevin, B. Dewitte, and F. Colas (2012), Equatorially-forced intraseasonal propagations along the Peru-Chile coast and their relation with the nearshore eddy activity in 1992-2000: A modelling study, J. Geophys. Res., 117, C04025, doi:10.1029/ 2011JC007848. · DOI
  4. Bonhomme, C., O. Aumont, and V. Echevin, (2007), Advective transport caused by intraseasonal Rossby waves: A key player of the high chlorophyll variability off the Peru upwelling region, J. Geophys. Res., 112, C09018, doi:10.1029/2006JC004022. · DOI
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  6. Chaigneau, A., N. Dominguez, G. Eldin, L. Vasquez, R. Flores, C. Grados, and V. Echevin (2013), Near-coastal circulation in the Northern Hum- boldt Current System from shipboard ADCP data, J. Geophys. Res., 118, 5251-5266, doi:10.1002/jgrc.20328. · DOI
  7. Cravatte, S., J. Picaut, and G. Eldin (2003), First and second baroclinic Kelvin modes in the equatorial Pacific at intraseasonal timescales, J. Geophys. Res., 108, 3266, doi:10.1029/2002JC001511. · DOI
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  22. Testor, P., et al. (2010), Gliders as a component of future observing systems, in Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society, vol. 2, edited by J. Hall, D. E. Harrison, and D. Stammer, ESA Publ. WPP-306, Venice, Italy, doi:10.5270/ OceanObs09.cwp. · DOI
  23. Zuta, S., T. Rivera, and A. Bustamante (1978), Hydrologic aspects of the main upwelling areas off Peru, in Upwelling Ecosystems, edited by R. Boje and M. Tomczak, pp. 235-257, Springer, Berlin. Erratum In the originally published version of this article, a decimal point was missing in a measurement. In section 2.1, (5 Hz) has been corrected to (0.
  24. Hz). This version may be considered the authoritative version of record. Journal of Geophysical Research: Oceans 10.1002/2013JC009270

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Authors
Pietri, A., Echevin, V., Testor, P., Chaigneau, A., Mortier, L., Grados, C., & Albert, A.
Affiliations
  • LOCEAN-IPSL; Paris France
  • Institut Pierre-Simon Laplace (FR)
  • Laboratoire d’Études en Géophysique et Océanographie Spatiales (FR)
  • Instituto del Mar del Peru (PE)
ORCID
Venue
Journal of Geophysical Research: Oceans
Publisher
American Geophysical Union (AGU)
Published
2014-03
Volume
119
Issue
3
Pages
2109-2120
ISSN
2169-9275 (ISSN-L)
DOI
10.1002/2013jc009270
OpenAlex
W1993858188
Cited by
41
References
1
Citations by year
2026: 2 · 2025: 2 · 2023: 1 · 2022: 2 · 2021: 4 · 2020: 1 · 2019: 8 · 2018: 4 · 2017: 6 · 2016: 5 · 2015: 5 · 2014: 1
FWCI
4.08
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Geophysical Research Oceans (publishedVersion)
  • HAL (submittedVersion, other-oa)
Funders
  • Agence Nationale de la Recherche
  • Centre National d’Etudes Spatiales
  • Centre National de la Recherche Scientifique
Topics
  • Physical Sciences › Earth and Planetary Sciences › Oceanography › Oceanographic and Atmospheric Processes
  • Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Meteorological Phenomena and Simulations
  • Physical Sciences › Environmental Science › Global and Planetary Change › Climate variability and models
Keywords
coastal trapped waves, glider observations, coastal upwelling, ocean circulation

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