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Hyodae Seo, Arthur J. Miller, and Joel R. Norris

affected by T e and U e exerts distinctive feedback effects on the evolution and intensity of the eddy; the U e leads to decay of the eddy via enhanced top-drag ( Bye 1986 ), while the T e , via change in drag coefficients and wind stress, affects the propagation of the eddy. Some earlier studies suggest that T e and U e effects are not independent. For example, a regional coupled modeling study for the tropical Atlantic by Seo et al. (2007a) showed that the cold (warm) anomalies

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Hidetaka Hirata, Ryuichi Kawamura, Masaya Kato, and Taro Shinoda

water vapor content because the saturation mixing ratio also increases. If these two possible effects of the sensible heat supply are significant in the CCB–LH feedback process, we need to revise the concept of the feedback process proposed by H15 . The main objectives of this study are 1) to examine the relative roles of the sensible heat supply from the Kuroshio/Kuroshio Extension in the CCB–LH feedback process and 2) to revise the CCB–LH feedback process if necessary. To address these issues

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Peter Gaube, Dudley B. Chelton, Roger M. Samelson, Michael G. Schlax, and Larry W. O’Neill

surface current effects was shown to increase with eddy amplitude and to be inversely related to eddy radius scale. The global composites in section 5 and regional composites in section 6 confirm observationally the conclusions of the analysis of idealized eddies in section 4 : SST-induced Ekman pumping in mesoscale eddies is usually secondary to current-induced Ekman pumping. Exceptions to the general dominance of surface current effects occur in regions of strong SST gradients in regions of

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Atsuhiko Isobe, Shin’ichiro Kako, and Shinsuke Iwasaki

, indicate areas with concentrations higher than 0.8 and 1.0 mg Chl m −3 . Contour interval is 0.1 mg Chl m −3 . Area depicted is the same as the domain of mixed-layer model described in section 2a . Geographic properties of the Sea of Japan provide another advantage in exploring the effects of biological heating on regional climate. The sea, which is at the western edge of the North Pacific, is a warm ocean that in spring is first encountered by cool and dry westerly winds from the Asian landmass

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Hyodae Seo

potentially important influence of surface-current-driven air–sea interactions on the downstream development of monsoonal winds and moisture transport. 6. Summary and discussion This study examined the dynamical influences of air–sea interaction mediated by the mesoscale SST and surface currents in the Arabian Sea (AS) from a series of high-resolution regional coupled model simulations. The model captures simultaneous small-scale air–sea coupling via SST and current, while the individual effects are

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Kohei Takatama, Shoshiro Minobe, Masaru Inatsu, and R. Justin Small

. All results shown below have been subjected to high-pass filtering, unless otherwise stated. b. Model and experiments The regional atmospheric model used in this study is the International Pacific Research Center Regional Climate model (iRAM). The model includes dynamical processes based on hydrostatic formulation and physical parameterizations such as radiative transfer, shallow and deep convection, and turbulent mixing [see Wang et al. (2003) for details]. The model uses an E – ε turbulent

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Kohei Takatama and Niklas Schneider

thermal effect, we used a regional atmospheric model in a series of experiments with and without ocean currents and SST fronts. We focus on the Kuroshio in the winter East China Sea, because current speeds are large and located away from land. The surface wind stress response and the modified coupling coefficients are investigated in sections 3 and 4 , respectively. Responses in the MABL and the lower troposphere are explored in section 5 . There are clear signatures in the boundary layer, but

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Xiaohui Ma, Ping Chang, R. Saravanan, Raffaele Montuoro, Hisashi Nakamura, Dexing Wu, Xiaopei Lin, and Lixin Wu

Oscillation (NPO) pattern to a meridional shift of the Kuroshio–Oyashio front. More recently, O’Reilly and Czaja (2015) identified a response of the North Pacific storm track to SST anomalies associated with the variability of the Kuroshio Extension. Some of the recent progress in understanding the role of the sharp SST gradient along oceanic fronts in large-scale atmospheric circulation can be found in recent reviews ( Kelly et al. 2010 ; Kwon et al. 2010 ). In addition to SST gradient effects, it has

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Youichi Tanimoto, Kou Shimoyama, and Shoichi Mori

limited number of soundings obtained during individual observation cruises does not allow the temporal changes of the MABL to be captured on a synoptic time scale. Instead, any synoptic weather disturbance occurring during the observation cruise has tended to be treated as noise when extracting the ocean-to-atmosphere effects. Satellite measurements have the potential to provide frequent and global measurements of the vertical structures of temperature and moisture over the ocean. However, the

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Akira Kuwano-Yoshida and Shoshiro Minobe

1. Introduction The relationship between the storm track and sea surface temperature (SST) fronts associated with western boundary ocean currents, such as the Kuroshio, the Kuroshio Extension, the Oyashio, and the subpolar front in the northwestern Pacific (NWP) as well as the Gulf Stream in the northwestern Atlantic, has been investigated by analyzing observations, reanalysis data, and sensitivity experiments using global and regional atmospheric models in both ideal and realistic situations

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