scholarly journals Concentration and Viability of Airborne Bacteria Over the Kuroshio Extension Region in the Northwestern Pacific Ocean: Data From Three Cruises

2017 ◽  
Vol 122 (23) ◽  
Author(s):  
Wei Hu ◽  
Kotaro Murata ◽  
Shinichiro Fukuyama ◽  
Yoshimi Kawai ◽  
Eitarou Oka ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Kuroshio Extension ◽  
Northwestern Pacific ◽  
Airborne Bacteria ◽  
Northwestern Pacific Ocean ◽  
The Kuroshio ◽  
Kuroshio Extension Region

Spatial Structure of Turbulent Mixing in the Northwestern Pacific Ocean

2014 ◽  
Vol 44 (8) ◽  
pp. 2235-2247 ◽  
Author(s):  
Qingxuan Yang ◽  
Wei Zhao ◽  
Min Li ◽  
Jiwei Tian
Keyword(s):  
Pacific Ocean ◽  
Turbulent Mixing ◽  
Boundary Region ◽  
Horizontal Distribution ◽  
Northwestern Pacific ◽  
Western Boundary ◽  
Northwestern Pacific Ocean ◽  
Thorpe Scale ◽  
High Level ◽  
The Kuroshio

Abstract Turbulent mixing in the northwestern Pacific Ocean is estimated using the Gregg–Henyey–Polzin scaling and Thorpe-scale methods. The data sources are the hydrographic observations during October and November 2005. The results reveal clear spatial patterns of turbulent mixing in the study area. High-level diffusivity on the order of 10−3 m2 s−1 or larger is found within the western boundary region, where the Kuroshio flows northward. The width covered by this prominent diffusivity shows an increase from 12° to 18°N. The horizontal distribution of depth-averaged diffusivity in the top 500 m shows enhanced mixing with diffusivity of 6 × 10−3 m2 s−1 south of 9°N where the Mindanao Eddy remains a quasi-permanent feature. These two distinct patterns of diffusivity distribution suggest that the Kuroshio and the Mindanao Eddy are likely responsible for the elevated turbulent mixing in the study area.

scholarly journals Subtropical Mode Water Variability in a Climatologically Forced Model in the Northwestern Pacific Ocean

2012 ◽  
Vol 42 (1) ◽  
pp. 126-140 ◽  
Author(s):  
Elizabeth M. Douglass ◽  
Steven R. Jayne ◽  
Synte Peacock ◽  
Frank O. Bryan ◽  
Mathew E. Maltrud
Keyword(s):  
Pacific Ocean ◽  
Mixed Layer Depth ◽  
Northwestern Pacific ◽  
Northwestern Pacific Ocean ◽  
Large Meander ◽  
The West ◽  
Mode Water ◽  
Subtropical Mode Water ◽  
South Of Japan ◽  
The Kuroshio

Abstract A climatologically forced high-resolution model is used to examine variability of subtropical mode water (STMW) in the northwestern Pacific Ocean. Despite the use of annually repeating atmospheric forcing, significant interannual to decadal variability is evident in the volume, temperature, and age of STMW formed in the region. This long time-scale variability is intrinsic to the ocean. The formation and characteristics of STMW are comparable to those observed in nature. STMW is found to be cooler, denser, and shallower in the east than in the west, but time variations in these properties are generally correlated across the full water mass. Formation is found to occur south of the Kuroshio Extension, and after formation STMW is advected westward, as shown by the transport streamfunction. The ideal age and chlorofluorocarbon tracers are used to analyze the life cycle of STMW. Over the full model run, the average age of STMW is found to be 4.1 yr, but there is strong geographical variation in this, from an average age of 3.0 yr in the east to 4.9 yr in the west. This is further evidence that STMW is formed in the east and travels to the west. This is qualitatively confirmed through simulated dye experiments known as transit-time distributions. Changes in STMW formation are correlated with a large meander in the path of the Kuroshio south of Japan. In the model, the large meander inhibits STMW formation just south of Japan, but the export of water with low potential vorticity leads to formation of STMW in the east and an overall increase in volume. This is correlated with an increase in the outcrop area of STMW. Mixed layer depth, on the other hand, is found to be uncorrelated with the volume of STMW.

scholarly journals The Kuroshio Current: Artery of Life

Eos ◽  
2019 ◽  
Vol 100 ◽  
Author(s):  
Takeyoshi Nagai
Keyword(s):  
Pacific Ocean ◽  
Kuroshio Current ◽  
Northwestern Pacific ◽  
Northwestern Pacific Ocean ◽  
Inorganic Matter ◽  
Ocean Ecosystem ◽  
The Kuroshio

The waters of the Kuroshio Current in the northwestern Pacific Ocean transport heat, salt, and organic and inorganic matter from south to north, shaping the ocean ecosystem.

Holocene variability of the Kuroshio Current in the Okinawa Trough, northwestern Pacific Ocean

2000 ◽  
Vol 184 (1) ◽  
pp. 305-319 ◽  
Author(s):  
Zhimin Jian ◽  
Pinxian Wang ◽  
Yoshiki Saito ◽  
Jiliang Wang ◽  
Uwe Pflaumann ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Okinawa Trough ◽  
Kuroshio Current ◽  
Northwestern Pacific ◽  
Northwestern Pacific Ocean ◽  
The Okinawa Trough ◽  
The Kuroshio

Major and trace element compositions and resource potential of ferromanganese crust at Takuyo Daigo Seamount, northwestern Pacific Ocean

2016 ◽  
Vol 50 (6) ◽  
pp. 527-537 ◽  
Author(s):  
Tatsuo Nozaki ◽  
Ayaka Tokumaru ◽  
Yutaro Takaya ◽  
Yasuhiro Kato ◽  
Katsuhiko Suzuki ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Trace Element ◽  
Ferromanganese Crust ◽  
Northwestern Pacific ◽  
Northwestern Pacific Ocean ◽  
Resource Potential

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
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