Properties of winter mixed layer variability on the shelf-slope region facing the Kuroshio—study of Tosa Bay, southern Japan

2013 ◽  
Vol 64 (1) ◽  
pp. 47-60 ◽  
Author(s):  
Hiroshi Kuroda ◽  
Yuichi Hirota ◽  
Takashi Setou ◽  
Kazuhiro Aoki ◽  
Daisuke Takahashi ◽  
...  
Keyword(s):  
Mixed Layer ◽  
Tosa Bay ◽  
Southern Japan ◽  
Shelf Slope ◽  
Winter Mixed Layer ◽  
The Kuroshio

Temporal variations of the winter mixed layer south of the Kuroshio Extension

2010 ◽  
Vol 66 (1) ◽  
pp. 147-153 ◽  
Author(s):  
Hikaru Iwamaru ◽  
Fumiaki Kobashi ◽  
Naoto Iwasaka
Keyword(s):  
Mixed Layer ◽  
Kuroshio Extension ◽  
Temporal Variations ◽  
Winter Mixed Layer ◽  
The Kuroshio

Decadal Variation in Winter Mixed Layer Depth South of the Kuroshio Extension and Its Influence on Winter Mixed Layer Temperature

2016 ◽  
Vol 29 (3) ◽  
pp. 1237-1252 ◽  
Author(s):  
Shusaku Sugimoto ◽  
Shin’ichiro Kako
Keyword(s):  
Mixed Layer ◽  
North Pacific ◽  
Kuroshio Extension ◽  
Mixed Layer Depth ◽  
Positive Anomaly ◽  
Surface Cooling ◽  
Layer Depth ◽  
Mixed Layer Temperature ◽  
Winter Mixed Layer ◽  
The Kuroshio

Abstract The long-term behavior of the wintertime mixed layer depth (MLD) and mixed layer temperature (MLT) are investigated in a region south of the Kuroshio Extension (KE) (30°–37°N, 141°–155°E), an area of the North Pacific subtropical gyre where the deepest MLD occurs, using historical temperature profiles of 1968–2014. Both the MLD and MLT in March have low-frequency variations, which show significant decadal (~10 yr) variations after the late 1980s. Observational data and simulation outputs from a one-dimensional turbulent closure model reveal that surface cooling is the main control on winter MLD in the late 1970s and 1980s, whereas there is a change in the strength of subsurface stratification is the main control after ~1990. In the latter period, a weak (strong) subsurface stratification is caused by a straight path (convoluted path) of the KE and by a deepening (shallowing) of the main thermocline depth due to oceanic Rossby waves formed as a result of positive (negative) anomalies of wind stress curl associated with a southward (northward) movement of the Aleutian low in the central North Pacific. During deeper (shallower) periods of winter MLD, the strong (weak) vertical entrainment process, resulting from a rapid (slow) deepening of the mixed layer (ML) in January and February, forms a negative (positive) anomaly of temperature tendency. Consequently, the decadal variations in wintertime MLT are formed.

scholarly journals Winter mixed layer depth and spring bloom along the Kuroshio front: implications for the Japanese sardine stock

2013 ◽  
Vol 487 ◽  
pp. 217-229 ◽  
Author(s):  
H Nishikawa ◽  
I Yasuda ◽  
K Komatsu ◽  
H Sasaki ◽  
Y Sasai ◽  
...  
Keyword(s):  
Mixed Layer ◽  
Spring Bloom ◽  
Mixed Layer Depth ◽  
Layer Depth ◽  
Japanese Sardine ◽  
Winter Mixed Layer ◽  
Kuroshio Front ◽  
The Kuroshio

Winter mixed layer entrainment of Weddell Deep Water

1984 ◽  
Vol 89 (C1) ◽  
pp. 637 ◽  
Author(s):  
A. L. Gordon ◽  
C. T. A. Chen ◽  
W. G. Metcalf
Keyword(s):  
Mixed Layer ◽  
Deep Water ◽  
Winter Mixed Layer

Decline of the Ecklonia cava population associated with increased seawater temperatures in Tosa Bay, southern Japan

2004 ◽  
Vol 70 (1) ◽  
pp. 189-191 ◽  
Author(s):  
Yukihiko SERISAWA ◽  
Zenji IMOTO ◽  
Tetsu ISHIKAWA ◽  
Masaoc OHNO
Keyword(s):  
Ecklonia Cava ◽  
Tosa Bay ◽  
Southern Japan
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