Physical characteristics of the Gulf Stream as an indicator of the quality of large-scale circulation modeling

Sarkisyan, A. S.; Nikitin, O. P.; Lebedev, K. V.

doi:10.1134/s1028334x16120138

Cited by 6 publications

(1 citation statement)

References 9 publications

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“…The 10-year Argo climatology includes 12 months, 4 seasons, and climatic year. The comparison of model simulations with the drifter data revealed that temperature and salinity fields calculated using the Argo data and the variational interpolation on a regular grid restore realistic currents fields Sarkisyan et al, 2016]. The use of sea surface salinity (SSS) data, derived from the Argo measurements using the described above variational technique, improves the interannual variability of the mixed layer depth in the ocean general circulation models, also so-called "barrier layers" are reproduced when the Argo SSS is used [Furue et al, 2018].…”

Section: Methodsmentioning

confidence: 99%

A model study of the wind stress influence on the interannual variability of the Antarctic Circumpolar Current

Lebedev¹,

Tarakanov²

2018

Russ. J. Earth Sci.

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The interannual variability of the Antarctic Circumpolar Current (ACC) transport in the Drake Passage is studied on the basis of simulations performed using the Argo-based model for Investigation of the Global Ocean (AMIGO), which consists of a block for variational interpolation of the Argo floats data to a regular grid and a block for model hydrodynamic adjustment of variationally interpolated fields. Such a technique allows us to obtain a complete set of oceanographic characteristics from irregularly located Argo measurements: temperature, salinity, density, and current velocity. The calculation results are presented as monthly, seasonal, and annual means and climatological fields. The mean ACC transport through the Drake Passage in 2005-2014 was estimated at 162 ± 5 Sv (1 Sv = 10 6 m 3 s −1 ). Two additional numerical experiments were carried out in order to study the contribution of the wind forcing to the interannual variability of the ACC transport: the real thermohaline fields corresponding to the particular time period were replaced by climatic ones (Experiment 1); the real wind forcing data were replaced by the climatic ones (Experiment 2). Analysis of the results of numerical experiments has shown that variable wind stress forcing is the key factor controlling the interannual variability of the ACC transport through the Drake Passage. KEYWORDS: Antarctic Circumpolar Current; transport; variability; modeling; Argo floats.Citation: Lebedev, K. V. and R. Yu. Tarakanov (2018), A model study of the wind stress influence on the interannual variability of the Antarctic Circumpolar Current, Russ.

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Section: Methodsmentioning

confidence: 99%