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Using stable nitrogen isotopes to evaluate the relative importance of external and internal nitrogen loadings on phytoplankton production in a shallow eutrophic lake (Lake Mikata, Japan)
a shallow eutrophic lake phytoplankton production
2014/4/2
The seasonal variability of the stable nitrogen isotope (d15N) in phytoplankton and dissolved inorganic
nitrogen (DIN) in the shallow, eutrophic Lake Mikata was examined to assess the relative import...
Bispectra and Cross-Bispectra of Temperature, Salinity, Sound Velocity and Density Fluctuations with Depth off Northeastern Japan
Temperature Salinity Sound Velocity Density Fluctuations
2009/4/2
Off northeastern Japan, depth profiles of temperature, salinity, sound velocity and density show considerable structure between 30 and 240 m. The structure is asymmetric with respect to the mean and t...
A Numerical Study of the Kuroshio South of Japan
Kuroshio quasi-geostrophic boundary constraints nonlinear
2009/2/7
A numerical model is used to study the interaction of the Kuroshio with boundary constraints south of Japan. The model consists of two layers with the lower layer inert, and is both nonlinear and quas...
An Event in Water Exchange between Continental Shelf and the Kuroshio off Southern Japan：Lagrangian Tracking of a Low-Salinity Water Mass on the Kuroshio
Water Exchange Continental Shelf Low-Salinity Water Mass Kuroshio
2009/1/7
Low-salinity water masses were occasionally observed in spring and summer on the surface of the Kuroshio, south of Japan. Many of the masses were accompanied by excessive discharge of fresh water from...
The nonlinear leakage of Kuroshio water (via the Tsushima Strait) into the Sea of Japan is examined using a “reduced gravity” analytical model. The flow in our conceptual model results from the zonal ...
Seasonal Variation in Volume Transport of the Kuroshio South of Japan
Seasonal Variation Volume Transport Kuroshio
2008/12/15
A two-layer numerical model driven by the observed wind stress compiled by K. Kutsuwada and T. Teramoto is used to study the seasonal variation in volume transport of the Kuroshio south of Japan. The ...
Model Study of Flow Conditions Causing the Large Meander of the Kuroshio South of Japan
large-meander Flow Conditions non-large-meander
2008/12/11
The upstream conditions for large-meander (LM) and non-large-meander (NLM) paths of the Kuroshio south of Japan were examined by calculating the current axis with a steady model imposed upstream flow ...
A Climatological View of the Kuroshio/Oyashio System East of Japan
A Climatological View Kuroshio/Oyashio System East of Japan
2008/8/1
Time-averaged structure of the Kuroshio/Oyashio system east of Japan was examined using historical hydrographic data. Unlike most of the earlier climatological analyses, the data were averaged along i...
Japan Sea Thermohaline Structure and Circulation. Part II: A Variational P-Vector Method
Japan Sea Thermohaline Structure Circulation P-Vector Method
2008/7/31
The second part of this work investigates the seasonal variabilities of the Japan/East Sea (JES) circulation using the U.S. Navy Generalized Digital Environmental Model (GDEM) climatological temperatu...
Effects of Stratification and Bottom Topography on the Kuroshio Path Variation South of Japan. Part I: Dependence of the Path Selection on Velocity
Stratification Bottom Topography Kuroshio Path Variation
2008/7/22
Numerical experiments are executed using a two-layer inflow–outflow ocean model with simplified geometry to investigate the effects of stratification and bottom topography on the path variation of the...
Formation and Circulation Processes of Intermediate Water in the Japan Sea
Circulation Processes Intermediate Water Japan Sea
2008/7/21
The formation and circulation processes of intermediate water in the Japan Sea have been investigated by study of the subduction of mixed layer water. To simulate realistic seasonal variations in the ...
Impact of Upper Ocean–Topographical Coupling and Isopycnal Outcropping in Japan/East Sea Models with 1/8° to 1/64° Resolution
Upper Ocean–Topographical Coupling Isopycnal Outcropping Japan/East Sea Models
2008/7/3
A regional primitive equation ocean model is used to investigate the impact of grid resolution, baroclinic instability, bottom topography, and isopycnal outcropping on the dynamics of the wind and thr...
Two-Layer Model on the Branching of the Kuroshio Southwest of Kyushu, Japan
Two-Layer Model Branching Kuroshio Southwest Japan
2008/7/3
Observations suggest that a separation branch of the Kuroshio appears southwest of Kyushu, Japan. The observed density and surface current fields clearly show a separation branch in autumn. However, t...
Kuroshio Path Variations South of Japan: Bimodality as a Self-Sustained Internal Oscillation
Kuroshio Path South of Japan Self-Sustained Internal Oscillation
2008/7/2
In the two decades following 1975, the Kuroshio path south of Japan was observed to oscillate interannually between a straight path state and a meandering state. This bimodal condition is in sharp con...
Effects of Stratification and Bottom Topography on the Kuroshio Path Variation South of Japan. Part II: Path Transitions in a Multiple Equilibrium Regime
Effects of Stratification Bottom Topography Kuroshio Path Variation
2008/6/30
The effects of stratification and bottom topography on the Kuroshio path transitions in a multiple equilibrium regime due to a short-term velocity increase are examined using a two-layer inflow–outflo...