Articles | Volume 12, issue 5
https://doi.org/10.5194/os-12-1049-2016
https://doi.org/10.5194/os-12-1049-2016
Research article
 | 
08 Sep 2016
Research article |  | 08 Sep 2016

Seasonal variability of the Ekman transport and pumping in the upwelling system off central-northern Chile (∼  30° S) based on a high-resolution atmospheric regional model (WRF)

Luis Bravo, Marcel Ramos, Orlando Astudillo, Boris Dewitte, and Katerina Goubanova

Related authors

Biogeochemical characteristics of a long-lived anticyclonic eddy in the eastern South Pacific Ocean
Marcela Cornejo D'Ottone, Luis Bravo, Marcel Ramos, Oscar Pizarro, Johannes Karstensen, Mauricio Gallegos, Marco Correa-Ramirez, Nelson Silva, Laura Farias, and Lee Karp-Boss
Biogeosciences, 13, 2971–2979, https://doi.org/10.5194/bg-13-2971-2016,https://doi.org/10.5194/bg-13-2971-2016, 2016

Related subject area

Depth range: Surface | Approach: Numerical Models | Geographical range: All Geographic Regions | Phenomena: Air-Sea Fluxes
Simulating the spread of disinfection by-products and anthropogenic bromoform emissions from ballast water discharge in Southeast Asia
Josefine Maas, Susann Tegtmeier, Birgit Quack, Arne Biastoch, Jonathan V. Durgadoo, Siren Rühs, Stephan Gollasch, and Matej David
Ocean Sci., 15, 891–904, https://doi.org/10.5194/os-15-891-2019,https://doi.org/10.5194/os-15-891-2019, 2019
Short summary
Numerical tools to estimate the flux of a gas across the air–water interface and assess the heterogeneity of its forcing functions
V. M. N. C. S. Vieira, F. Martins, J. Silva, and R. Santos
Ocean Sci., 9, 355–375, https://doi.org/10.5194/os-9-355-2013,https://doi.org/10.5194/os-9-355-2013, 2013
Sensitivity study of the generation of mesoscale eddies in a numerical model of Hawaii islands
M. Kersalé, A. M. Doglioli, and A. A. Petrenko
Ocean Sci., 7, 277–291, https://doi.org/10.5194/os-7-277-2011,https://doi.org/10.5194/os-7-277-2011, 2011
A numerical scheme to calculate temperature and salinity dependent air-water transfer velocities for any gas
M. T. Johnson
Ocean Sci., 6, 913–932, https://doi.org/10.5194/os-6-913-2010,https://doi.org/10.5194/os-6-913-2010, 2010

Cited articles

Aguirre, C., Pizarro, O., Strub, P. T., Garreaud, R., and Barth, J. A.: Seasonal dynamics of the near-surface alongshore flow off central Chile, J. Geophys. Res., 117, C01006, https://doi.org/10.1029/2011JC007379, 2012.
Archer, C. L. and Jacobson, M. Z.: The Santa Cruz Eddy. Part II: Mechanisms of Formation, Mon. Weather Rev., 133, 2387–2405, 2005.
Bakun, A.: Coastal upwelling indices, west coast of North America, 1946–1971, US Dep. Commer., NOAA Tech. Rep., NMFS SSRF-671, 103 pp., 1973.
Bakun, A. and Nelson, C.: The seasonal cycle of wind stress curl in subtropical Eastern boundary current regions, J. Phys. Oceanogr., 21, 1815–1834, 1991.
Bane, J. M., Levine, M. D., Samelson, R. M., Haines, S. M., Meaux, M. F., Perlin, N., Kosro, P. M., and Boyd, T.: Atmospheric forcing of the Oregon coastal ocean during the 2001 upwelling Season, J. Geophys. Res., 110, C10S02, https://doi.org/10.1029/2004JC002653, 2005.
Download
Short summary
We evaluated the seasonal variability in Ekman transport, pumping and their relative contribution to total upwelling along the central-northern Chile region (~30ºS) from a high-resolution atmospheric model simulation. The results showed that the relative contribution of Ekman transport and pumping to the vertical transport along the coast, considering the estimated wind drop-off length, indicated meridional alternation between both mechanisms, modulated by orography and the intricate coastline.