Preliminary results from a large‐scale 3‐D tomography experiment in the Kuroshio Extension region

1998 ◽  
Vol 103 (5) ◽  
pp. 2790-2790
Author(s):  
Gang Yuan ◽  
Hidetoshi Fujimori ◽  
Toshiaki Nakamura ◽  
Iwao Nakano ◽  
Takashi Kamoshida ◽  
...  
Keyword(s):  
Large Scale ◽  
Kuroshio Extension ◽  
Preliminary Results ◽  
The Kuroshio ◽  
Kuroshio Extension Region

Cold air outbreak over the Kuroshio extension region

OCEANS 2009 ◽  
2009 ◽  
Author(s):  
T. G. Jensen ◽  
T. Campbell ◽  
T. A. Smith ◽  
R. J. Small ◽  
R. Allard
Keyword(s):  
Kuroshio Extension ◽  
Cold Air ◽  
Cold Air Outbreak ◽  
The Kuroshio ◽  
Kuroshio Extension Region

scholarly journals Oceanic Eddy Characteristics and Generation Mechanisms in the Kuroshio Extension Region

2018 ◽  
Vol 123 (11) ◽  
pp. 8548-8567 ◽  
Author(s):  
Jinlin Ji ◽  
Changming Dong ◽  
Biao Zhang ◽  
Yu Liu ◽  
Bin Zou ◽  
...  
Keyword(s):  
Kuroshio Extension ◽  
Eddy Characteristics ◽  
Oceanic Eddy ◽  
Generation Mechanisms ◽  
The Kuroshio ◽  
Kuroshio Extension Region

scholarly journals Storm-Track Response to SST Fronts in the Northwestern Pacific Region in an AGCM

2017 ◽  
Vol 30 (3) ◽  
pp. 1081-1102 ◽  
Author(s):  
Akira Kuwano-Yoshida ◽  
Shoshiro Minobe
Keyword(s):  
General Circulation ◽  
Large Scale ◽  
Kuroshio Extension ◽  
Storm Track ◽  
Northwestern Pacific ◽  
Jet Stream ◽  
Pacific Region ◽  
Northeastern Pacific ◽  
The Kuroshio ◽  
Sst Fronts

Abstract The storm-track response to sea surface temperature (SST) fronts in the northwestern Pacific region is investigated using an atmospheric general circulation model with a 50-km horizontal resolution. The following two experiments are conducted: one with 0.25° daily SST data (CNTL) and the other with smoothed SSTs over an area covering SST fronts associated with the Kuroshio, the Kuroshio Extension, the Oyashio, and the subpolar front (SMTHK). The storm track estimated from the local deepening rate of surface pressure (LDR) exhibits a prominent peak in this region in CNTL in January, whereas the storm-track peak weakens and moves eastward in SMTHK. Storm-track differences between CNTL and SMTHK are only found in explosive deepening events with LDR larger than 1 hPa h−1. A diagnostic equation of LDR suggests that latent heat release associated with large-scale condensation contributes to the storm-track enhancement. The SST fronts also affect the large-scale atmospheric circulation over the northeastern Pacific Ocean. The jet stream in the upper troposphere tends to meander northward, which is associated with positive sea level pressure (SLP) anomalies in CNTL, whereas the jet stream flows zonally in SMTHK. A composite analysis for the northwestern Pacific SLP anomaly suggests that frequent explosive cyclone development in the northwestern Pacific in CNTL causes downstream positive SLP anomalies over the Gulf of Alaska. Cyclones in SMTHK developing over the northeastern Pacific enhance the moisture flux along the west coast of North America, increasing precipitation in that region.

1000‐km square scale propagation from ocean acoustic tomography experiment in the Kuroshio Extension region

1998 ◽  
Vol 103 (5) ◽  
pp. 2790-2790
Author(s):  
Hidetoshi Fujimori ◽  
Iwao Nakano ◽  
Toshiaki Nakamura ◽  
Guan Yuan ◽  
Takashi Kamoshida ◽  
...  
Keyword(s):  
Kuroshio Extension ◽  
Acoustic Tomography ◽  
Ocean Acoustic Tomography ◽  
The Kuroshio ◽  
Kuroshio Extension Region

A comparison of acoustic and TOPEX/POSEIDON altimetric data in the Kuroshio Extension region during summer 1997

2000 ◽  
Vol 108 (5) ◽  
pp. 2586-2586
Author(s):  
Gang Yuan ◽  
Humio Mitsudera ◽  
Iwao Nakano ◽  
Hidetoshi Fujimori ◽  
Yasushi Yoshikawa ◽  
...  
Keyword(s):  
Kuroshio Extension ◽  
Altimetric Data ◽  
The Kuroshio ◽  
Kuroshio Extension Region

scholarly journals Lagrangian study of surface transport in the Kuroshio Extension area based on simulation of propagation of Fukushima-derived radionuclides

2014 ◽  
Vol 21 (1) ◽  
pp. 279-289 ◽  
Author(s):  
S. V. Prants ◽  
M. V. Budyansky ◽  
M. Yu. Uleysky
Keyword(s):  
Nuclear Power ◽  
Large Scale ◽  
Kuroshio Extension ◽  
Northwest Pacific ◽  
Large Area ◽  
Near Surface ◽  
Lagrangian Tracers ◽  
Surface Drifters ◽  
Lagrangian Study ◽  
The Kuroshio

Abstract. Lagrangian approach is applied to study near-surface large-scale transport in the Kuroshio Extension area using a simulation with synthetic particles advected by AVISO altimetric velocity field. A material line technique is proposed and applied to find out the origin of water masses in cold-core cyclonic rings pinched off from the jet in summer 2011. Tracking and Lagrangian maps provide the evidence of cross-jet transport. Fukushima-derived caesium isotopes are used as Lagrangian tracers to study transport and mixing in the area a few months after the 11 March 2011 tsunami that caused heavy damage of the Fukushima Nuclear Power Plant (FNPP). Tracking maps are computed to trace the origin of water parcels with measured levels of 134Cs and 137Cs concentrations collected during two research vessel (R/V) cruises in June and July 2011 in the large area of the northwest Pacific (Kaeriyama et al., 2013; Buesseler et al., 2012). It is shown that Lagrangian simulations are useful for finding the surface areas that are potentially dangerous due to the risk of radioactive contamination. The results of simulation are supported by tracks of the surface drifters that were deployed in the area.

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