Ocean Science
Ocean Science
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Articles | Volume 15, issue 5
Articles | Volume 15, issue 5
https://doi.org/10.5194/os-15-1247-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-15-1247-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 5
Research article
 | 
16 Sep 2019
Research article |  | 16 Sep 2019

Synoptic-scale variability of surface winds and ocean response to atmospheric forcing in the eastern austral Pacific Ocean

Iván Pérez-Santos, Romanet Seguel, Wolfgang Schneider, Pamela Linford, David Donoso, Eduardo Navarro, Constanza Amaya-Cárcamo, Elías Pinilla, and Giovanni Daneri

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Aguirre, C., Pizarro, Ó., 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. 
Ancapichun, S. and Garcés-Vargas, J.: Variability of the Southeast Pacific Subtropical Anticyclone and its impact on sea surface temperature off north-central Chile, Cienc. Mar., 41, 1–20, https://doi.org/10.7773/cm.v41i1.2338, 2015. 
Arkhipkin, A. I., Schuchert, P. C., and Danyushevsky, L.: Otolith chemistry reveals fine population structure and close affinity to the Pacific and Atlantic oceanic spawning grounds in the migratory southern blue whiting (Micromesistiusaustralisaustralis), Fish. Res., 96, 188–194, https://doi.org/10.1016/j.fishres.2008.11.002, 2009. 
Bentamy, A., Croize-Fillon, D., and Perigaud, C.: Characterization of ASCAT measurements based on buoy and QuikSCAT wind vector observations, Ocean Sci., 4, 265–274, https://doi.org/10.5194/os-4-265-2008, 2008. 
Bentamy, A. and Croize-Fillon, D.: Gridded surface wind fields from Metop/ASCAT measurements, Int. J. Remote Sens., 33, 1729–1754, 2011. 
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Satellite wind data were used to understand surface wind variability in the eastern austral Pacific Ocean, a region dominated generally by strong westerlies, but the empirical orthogonal function demonstrated that wind variability was dominated by a synoptic scale. Nighttime heatwave events were detected to produce air temperature maxima which exceeded the normal midday maxima caused by solar radiation. Downwelling conditions prevailed in the study region due to onshore Ekman transport.
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