Comparisons between observations and numerical simulations of Japan (East) Sea flow and mass fields in 1999 through 2001

Mooers, Christopher N. K.; Bang, Inkweon; Sandoval, Francisco J.

doi:10.1016/j.dsr2.2004.10.003

Cited by 18 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Property distributions in the Japan/East Sea are strongly controlled by circulation (Figures 2,3,and 4). The surface circulation is well described in many other works (e.g., Preller and Hogan, 1998;Mooers et al, 2005). The deep circulation was discussed recently by Senjyu et al (2005) and Teague et al (2005b), and has also been deduced from patterns of tracers such as chlorofl uorocarbons (Min and Warner, 2005 Figure 2.…”

Section: Currents and Eddies In Summer 1999mentioning

confidence: 52%

Japan/East Sea Water Masses and Their Relation to the Sea's Circulation

Talley¹,

Min²,

et al. 2006

View full text Add to dashboard Cite

The Japan/East Sea is a major anomaly in the ventilation and overturn picture of the Pacifi c Ocean. The North Pacifi c is well known to be nearly unventilated at intermediate and abyssal depths, refl ected in low oxygen concentration at 1000 m (Figure 1). (High oxygen indicates newer water in more recent contact with the atmosphere. Oxygen declines as water "ages" after it leaves the sea surface mainly because of bacterial respiration.) Even the small production of North Pacifi c Intermediate Water in the Okhotsk Sea (Talley, 1991; Shcherbina et al., 2003) and the tiny amount of new bottom water encountered in the deep Bering Sea (Warner and Roden, 1995) have no obvious impact on the overall oxygen distribution at 1000 m and below, down to 3500 m, which is the approximate maximum depth of the Bering, Okhotsk, and Japan/East Seas. In contrast, the nearly isolated Japan/East Sea is very well ventilated at all depths from the surface to the bottom. Oxygen is higher than anywhere else in the Pacifi c, even in the South Pacifi c, where intermediate-layer ventilation yields relatively high oxygen content at 1000 dbar (roughly 1000-m depth). It is necessary to look much farther away, to the North Atlantic and best-ventilated sectors of the Antarctic, to fi nd deep ventilation comparable to the Japan/East Sea's. Because it is ventilated from top to bottom and located at mid-latitude, the Japan/East Sea has many similarities to the North Atlantic Ocean (e.g., Riser and Jacobs, 2005; Min and Warner, 2005). Both have (1) infl ow of warm, saline surface waters from the south; (2) subduction that ventilates the upper ocean in the subtropics; (3) subtropical mode waters; (4) a subpolar front south of which a low-salinity water mass is formed; (5) cooling and precipitation that cause a colder, fresher subpolar north; (6) subpolar mode waters with comparable winter mixed-layer thicknesses; and (7) deep convection and ice formation that ventilate the entire water column. The Japan/East Sea differs from the North Atlantic in two major respects: (1) the powerful northward eastern boundary current in the Japan/East Sea, the Tsushima Warm Current, distorts the subtropical gyre, and (2) the Japan/East Sea is isolated from all subsurface waters in the North Pacifi c. Therefore, the Japan/East Sea's salinity is nearly uniform below the shallow sill depth (140 m) of Tsushima Strait. The Japan/East Sea has a full temperature range, however, because surface waters cool to freezing and some of this very cold water becomes bottom water. In its isolation, the Japan/East Sea most closely resembles the Mediterranean Sea-both seas form dense water as a result of convection during winter cold-air outbreaks (Talley et al., 2003; Marshall and Schott, 1999).

show abstract

Section: Currents and Eddies In Summer 1999mentioning

confidence: 52%

Japan/East Sea Water Masses and Their Relation to the Sea's Circulation

Talley¹,

Min²,

et al. 2006

View full text Add to dashboard Cite

show abstract

“…The EKWC separates from the coast, typically at 37-38°N where it meets the North Korean Cold Current (NKCC), and forms the Subpolar Jet that meanders eastward across the East/Japan Sea and then flows out through the Tsugaru Strait to the North Pacific. In the cold water region, the NKCC and the Liman Current flow to the south along the western boundary of the Japan/East Sea (Uda, 1934;Seung, 1992;Mooers et al, 2005).…”

Section: Environmental Settingmentioning

confidence: 98%

Geochemistry of surface sediments in the southwestern East/Japan Sea

Cha

Choi

Lee

et al. 2007

Journal of Asian Earth Sciences

View full text Add to dashboard Cite

“…The East Sea (ES), which is a small-enclosed marginal sea of the Northwest Pacific, can be regarded as a miniature ocean because its circulation system and hydrography are similar to those of the major ocean basins (Figure 1); sort of cyclonic and anticyclonic gyre systems bounded by the Subpolar Front (SPF), a western boundary current that separates from the coast and forms the SPF, deep water formation by deep convection, and mesoscale eddies and fronts [9][10][11][12]. Major oceanographic features in the ES are inflow and outflow system at the upper layer through the straits [13,14], the SPF [15][16][17], vigorous eddies [18][19][20][21][22][23][24][25], and its own ventilation system to generate anomalous cold and high oxygen deep and bottom waters [26,27]. In particular, the presence of mesoscale eddies in the south and north regions of the ES is an important physical features since the mesoscale phenomena play important roles in ventilating intermediate depths and water mass transformation of the ES [27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Occurrence and Evolution of Mesoscale Thermodynamic Phenomena in the Northern Part of the East Sea (Japan Sea) Derived from Satellite Altimeter Data

Kim

Moon

2021

Remote Sensing

View full text Add to dashboard Cite

Based on satellite measurements and oceanic reanalysis data, it has been possible to investigate the spatiotemporal variability of the mesoscale phenomena in the northern part of the East Sea (NES) where direct observations of currents and hydrographical conditions are scarce. For the first time, this study identifies the detailed spatiotemporal structure of the mesoscale features in the NES and the mechanism of its occurrence and evolution, which have important consequences on the distribution of the intermediate water masses in the East Sea. Here, we show that mesoscale thermodynamic phenomena in the northwestern region of the East Sea are characterized by a dipole structure associated with positive and negative sea surface height anomalies. These result in a strong thermal gradient between the seasonally non-persistent anomalies, which emerge and strengthen during late fall and early winter. In contrast to the previous finding of the relationship between winter monsoon winds and mesoscale features in the NES, we found that this relationship is crucial only to the emergence of the mesoscale phenomena. Consequently, we present a new perspective on the evolution mechanism of the mesoscale features in the NES. Of direct significance to the present study, thermohaline transport into the northwestern region of the East Sea regulates the strengthening and weakening of mesoscale features in the NES. Wind forcing may contribute to the emergence of the mesoscale features in the NES and then the intensification of the mesoscale activities is attributed to the intrusion of warm and fresh surface water advected from the southern part of the East Sea.

show abstract

Comparisons between observations and numerical simulations of Japan (East) Sea flow and mass fields in 1999 through 2001

Cited by 18 publications

References 10 publications

Japan/East Sea Water Masses and Their Relation to the Sea's Circulation

Japan/East Sea Water Masses and Their Relation to the Sea's Circulation

Geochemistry of surface sediments in the southwestern East/Japan Sea

Occurrence and Evolution of Mesoscale Thermodynamic Phenomena in the Northern Part of the East Sea (Japan Sea) Derived from Satellite Altimeter Data

Contact Info

Product

Resources

About