Measurements of the Turbulent Energy Dissipation Rate around the Shelf Break in the East China Sea

Matsuno, Takeshi; Shimizu, Manabu; Morii, Yasuhiro; Nishida, Hideaki; Takaki, Yasuaki

doi:10.1007/s10872-006-0019-9

Cited by 21 publications

(33 citation statements)

References 12 publications

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“…In contrast, the distinct peak of ε and K ρ near the bottom at 170-220 m at Stn 4 corresponded to the bottom boundary layer (Fig. 4b) as reported by Han et al (2001) and Matsuno et al (2005Matsuno et al ( , 2009. Previous studies suggest that these large ε values above the bottom are induced by bottom stress due to tidal currents, resulting in a distinct bottom mixed layer with a high K ρ (Matsuno et al, 2005).…”

Section: Variability Of Turbulence Intensity and Turbulent Nitrate Fluxsupporting

confidence: 63%

“…Niwa and Hibiya, 2004), 1-2 order of magnitude variability of vertical diffusivity has been commonly observed (e.g. Matsuno et al, 2005). At Stn 4, the maximum turbulent nitrate flux of 1542 mmol N m −2 d −1 (Table 1) was associated with the lowest nitrate gradient, but the largest K ρ at the nitracline.…”

Section: Turbulent Nitrate Flux and Associated Primary Production N mentioning

confidence: 72%

“…To date physical processes responsible for the nitrate supply have been proposed including upwelling in the northwest of Taiwan, frontal eddies along the Kuroshio, tidal mixing, internal waves, and typhoons (Yanagi et al, 1998;Chen et al, , 2001Chen et al, , 2003bChen and Chen, 2003;Kanda et al, 2003;Matsuno et al, 2005Matsuno et al, , 2009). However, the relative importance of these processes is poorly understood.…”

Section: Introductionmentioning

confidence: 99%

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Variability in nitrogen sources for new production in the vicinity of the shelf edge of the East China Sea in summer

Liu

Furuya

Shiozaki

et al. 2013

Continental Shelf Research

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Section: Variability Of Turbulence Intensity and Turbulent Nitrate Fluxsupporting

confidence: 63%

Section: Turbulent Nitrate Flux and Associated Primary Production N mentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Variability in nitrogen sources for new production in the vicinity of the shelf edge of the East China Sea in summer

Liu

Furuya

Shiozaki

et al. 2013

Continental Shelf Research

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“…It was also suggested that the short time scale internal waves could generate vertical mixing resulting in a change in stratification, while no feature of the vertical mixing itself was described. Following the study by Han et al (2001), Matsuno et al (2005) showed intermittent intensification of the vertical mixing associated with internal waves on the basis of measurements of the microscale structure. Repeated hydrographic surveys across the shelf break showed that the vertical structure formed by an intensified thermocline and bottom or intermediate mixed layer could change day by day (Han et al, 2001).…”

Section: Vertical Mixing Generated By Internal Wavesmentioning

confidence: 87%

The Kuroshio exchange with the South and East China Seas

2009

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Abstract. The Kuroshio flows along the edges of the marginal East Asian seas such as the South China Sea (SCS) and East China Sea (ECS). Exchanges of materials and energy between the Kuroshio and the marginal seas partly control the environments of the marginal seas. In particular, saline water from the Kuroshio maintains certain salinity in the shelf water in the ECS. Nutrients from the subsurface of the Kuroshio may influence primary production on the shelf. We summarize how the Kuroshio comes into contact with the shelf water or marginal seas, describing phenomena related to the exchange between the Kuroshio and the ECS along with the SCS, using reports in the literature along with original data. The Kuroshio tends to intrude into the SCS through the Luzon Strait in various manners such as direct intrusion, associated with eddies and as a loop current. The Kuroshio intrusion into the shelf region of the ECS has distinct seasonal variation and the Taiwan Warm Current plays a significant role in the determination of water properties in the outer shelf associated with the Kuroshio intrusion. We then examine physical processes related to the interaction between the Kuroshio and shelf water. Interaction between the Kuroshio and the bottom topography is an important process in the control of the exchange around the shelf break. Vertical mixing and frontal eddies are also important factors that control the water exchange and formation of water masses in the outer shelf. Wind stress plays a significant role in the exchange with a rather event-like manner. To determine the source of the water masses, chemical tracers could be powerful tools and it is suggested that a significant part of the shelf water consists of Kuroshio intermediate water.

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“…Kuroshio and its frontal instable processes not only control the hydrographic distribution of almost the entire ECS and its adjacent waters, but also have close relationships with the changes in fisheries, the pollutants drift, the seabed sediment and the distribution of biota, the ship navigation and the climate changes of coastal areas (Guo and Ge, 1997;Matsuno et al, 2005;Matsuno et al, 2009). …”

Section: Introductionmentioning

confidence: 99%

Detection of the Kuroshio frontal instable processes (KFIP) in the East China Sea using the MODIS images

Jia

Zhang

2010

Acta Oceanol. Sin.

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The Kuroshio frontal instable processes (KFIP) in the East China Sea (ECS) not only have a great impact on the hydrologic characteristics, the pollutants drift, the distribution of seafloor sediment and the ships navigation of the ECS, but also are closely related to the climate changes of the coastal areas of the ECS. However the frequency and area of occurrence of the KFIP have not been studied fully and detailedly. Because of its high spatial and temporal resolution, MODIS data is a kind of very good data source for surveying and researching the KFIP in the ECS. The aim of this study is to detect the KFIP in the ECS by using MODIS data, and to study the frequency and region of occurrence of the KFIP in the ECS. The selection has coverage of level 2 data of MODIS SST and Kd490 ranging from of the ECS when there was no cloud impact or little. By using of the data, the minimum standard of the Kuroshio temperature fronts and the diffuse attenuation coefficient (Kd490) fronts of the ECS are given. Based on these standards and the curvature distinguish methods, the standard of curvature distinguish for the KFIP in the ECS are put forward. By making use of this standard, we study a total of 2073 satellite-derived images, and discover that as long as there is no cloud impact from January to May and October to December, the KFIP in the ECS are surely found in MODIS satellite images. From June to September, the frequency of occurrence can also reach to 82.9% at least. Moreover, it is obtained that there are three source regions of these instability processes, namely, (26 • N, 121.5 • E) nearby, (27 • N, 125 • E) nearby and (30 • N, 128 • E) nearby. The differences of the characteristics of these instability processes which are generated in different regions are analyzed in the present study.

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Measurements of the Turbulent Energy Dissipation Rate around the Shelf Break in the East China Sea

Cited by 21 publications

References 12 publications

Variability in nitrogen sources for new production in the vicinity of the shelf edge of the East China Sea in summer

Variability in nitrogen sources for new production in the vicinity of the shelf edge of the East China Sea in summer

The Kuroshio exchange with the South and East China Seas

Detection of the Kuroshio frontal instable processes (KFIP) in the East China Sea using the MODIS images

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