Spring of no Kuroshio intrusion in the southern Taiwan Strait

Chen, Chen‐Tung Arthur; Jan, Sen; Huang, Ting-Hsuan; Tseng, Yu‐Heng

doi:10.1029/2009jc005804

Cited by 25 publications

(35 citation statements)

References 44 publications

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“…The model-derived velocity structure exhibited two segments: one was the southward CCC, which was confined in a narrow zone hugging the west coast of the TWS; the other was the northward flowing Taiwan Strait Warm Current located in the rest of the TWS. Such a pattern was consistent with previous results from in situ observations, supporting the validity of our numerical model (Fu et al, 1991;Liang et al, 2003;Chen et al, 2010).…”

Section: Model Verification and Model Resultssupporting

confidence: 82%

Inter-shelf nutrient transport from the East China Sea as a major nutrient source supporting winter primary production on the northeast South China Sea shelf

et al. 2013

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Abstract. The East China Sea (ECS) and the South China Sea (SCS) are two major marginal seas of the North Pacific with distinct seasonal variations of primary productivity. Based upon field observations covering both the ECS and the northern SCS (NSCS) during December 2008-January 2009, we examined southward long-range transport of nutrients from the ECS to the northeastern SCS (NESCS) carried by the China Coastal Current (CCC) driven by the prevailing northeast monsoon in wintertime. These escaped nutrients from the ECS shelf, where primary production (PP) was limited in winter, might however refuel the PP on the NESCS shelf at lower latitude, where the water temperature remained favorable, but river-sourced nutrients were limited. By combining the field observation of nitrate+nitrite (NO 3 +NO 2 , DIN) with our best estimate of volume transport of the CCC, we derived a first-order estimate for DIN flux of 1430 ± 1024 mol s −1 . Under the assumption that DIN was the limiting nutrient, such southward DIN transport would have stimulated 8.84 ± 6.33 × 10 11 gC of new production (NP), accounting for 33-74 % of the NP or 14-22 % of PP in winter on the NESCS shelf shallower than 100 m.

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Section: Model Verification and Model Resultssupporting

confidence: 82%

Inter-shelf nutrient transport from the East China Sea as a major nutrient source supporting winter primary production on the northeast South China Sea shelf

et al. 2013

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“…After wind speed weakening, the SST around the Penghu Islands rose immediately, which agrees with the sequence of SST maps shown in Fig. 10d-f previous studies; e.g., Chen et al 2010;Liao et al 2013;Lee et al 2014). Through the application of the warning mechanism, the hindcast of the 2008 winter showed that a high-risk warning could precede the coldest water day by 19 days (Fig.…”

Section: Hindcasting Cold Water Dayssupporting

confidence: 74%

“…Chang et al (2009) used satellite SST images around the Penghu Islands to show that the minimum SST (12.6 °C) in February 2008 was lower than the February climatological temperature (20 °C). The strong northeast monsoon in the winter of 2008, associated with La Niña, may drive the cold China Coastal Current to intrude more southward into the southern TS and can even suppress the northward warm Kuroshio Branch Current intruding the TS (Chen et al 2010;Lee et 25 al. 2014).…”

mentioning

confidence: 99%

Exceptionally cold water days in the southern Taiwan Strait: their predictability and relation to La Niña

Cheng¹,

Chang²

2018

Preprint

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Abstract. The objectives of this study were to assess the predictability of exceptionally cold water in the Taiwan Strait (TS) and to develop a warning system on the base of scientific mechanism, which is a component of the information technology system currently under development in Taiwan to protect aquaculture against extreme hazards. Optimum interpolation sea 10 surface temperature (SST) data were used to find exceptionally cold water days from January 1995 to May 2017. We found that the SST and wind speed over the TS are low and strong in La Niña winters, respectively. According to tests conducted using relative operating characteristic curves, predictions based on the Oceanic Niño Index and integrated wind speed can be employed at lead times of 60-210 and 0-30 days, respectively. This study utilized these two proxies to develop a possible warning mechanism and concluded four colors of warning light: (1) blue, meaning normal; (2) cyan, meaning warning; (3) 15 yellow, meaning moderate risk; and (4) red, meaning high risk. Hindcasting winters over the period 1995-2017 successfully predicted the cold water hazards in the winters of

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“…The metal concentrations at some sites of 20 to 28 were generally in the higher parts of the ranges of metal concentrations recorded in this study. This might be owing to the pollution from western Taiwan as the flows are generally northward (Jan et al 2002(Jan et al , 2006Chen and Sheu 2006;Chen et al 2010). Furthermore, southwardflowing China coastal currents frequently turn towards the east near 26°N (Jan et al 2002(Jan et al , 2006He et al 2014), and this is probably another reason.…”

Section: Metals In Total Concentrationsmentioning

confidence: 99%

Trace metals in surface sediments of the Taiwan Strait: geochemical characteristics and environmental indication

Gao

Zhou

Lui

et al. 2015

Environ Sci Pollut Res

Self Cite

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The concentration and geochemical fractionation of six trace metals related with environmental quality assessment, namely Cd, Cr, Cu, Ni, Pb, and Zn, in 30 surface sediments from both inshore and offshore areas of the Taiwan Strait were measured to investigate their distribution characteristics, evaluate their potential mobility, and assess their pollution status. The geoaccumulation index results indicated that, on average, the studied metals presented an order of Cd>Pb>Ni>Zn>Cu>Cr and were practically in uncontaminated status except Cd. The results of the sequential extraction analysis indicated that, on average, the studied metals were mostly accumulated in residual fraction except Cd whose concentration was the highest in the acid soluble fraction presenting a high risk to the environment, and their mobility decreased in the sequence of Cd>Pb>Ni>Cu>Zn>Cr. Based on the mean probable effect level quotients, the combination of the studied metals had an 8 % probability of being toxic at two sampling sites and had a 21 % probability of being toxic at the rest of sites. The spatial distribution of the studied metals in total concentrations and different geochemical fractions corroborated the previous findings about the possible sediment transportation routes in and around the Taiwan Strait.

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Spring of no Kuroshio intrusion in the southern Taiwan Strait

Cited by 25 publications

References 44 publications

Inter-shelf nutrient transport from the East China Sea as a major nutrient source supporting winter primary production on the northeast South China Sea shelf

Inter-shelf nutrient transport from the East China Sea as a major nutrient source supporting winter primary production on the northeast South China Sea shelf

Exceptionally cold water days in the southern Taiwan Strait: their predictability and relation to La Niña

Trace metals in surface sediments of the Taiwan Strait: geochemical characteristics and environmental indication

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