Summertime sea surface temperature fronts associated with upwelling around the Taiwan Bank

Lan, Kuo Wei; Kawamura, Hiroshi; Lee, Ming-An; Chang, Yi; Chan, Jui-Wen; Liao, Cheng Hsin

doi:10.1016/j.csr.2009.01.015

Cited by 31 publications

(20 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In recent years, various edge detection methods have been applied to satellite SST images (e.g., Cornillon, 1999, 2001;Pozo-Vazquez et al, 1999;Shimada et al, 2005;Chang et al, 2006;Lan et al, 2009;Belkin and O'Reilly, 2009;. Pozo-Vazquez et al (1999) demonstrated the powerful performance of an edge detection algorithm based on an entropic criterion using the Jensen-Shannon divergence (JSD) filter.…”

Section: Introductionmentioning

confidence: 98%

Relationship between albacore (Thunnus alalunga) fishing grounds in the Indian Ocean and the thermal environment revealed by cloud-free microwave sea surface temperature

et al. 2012

Self Cite

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 98%

Relationship between albacore (Thunnus alalunga) fishing grounds in the Indian Ocean and the thermal environment revealed by cloud-free microwave sea surface temperature

et al. 2012

Self Cite

View full text Add to dashboard Cite

“…However, an incursion of a cold current along the Chinese coast is rare and seemingly limited due to the domination of warm water from the SCS in summer (Jan et al 2002). The results of Lan et al (2009) also showed weak frontal patches along the Chinese coast during summer because of the appearance of cold water mass inshore which may be generated by the coastal upwelling forced from prevailing southwesterly monsoon. It is suggested that because of the absence of a cold current inshore, the long frontal band along the Chinese coast cannot be formed in summer.…”

Section: Resultsmentioning

confidence: 82%

Fine-scale sea surface temperature fronts in wintertime in the northern South China Sea

Chang

Shieh

Lee

et al. 2010

International Journal of Remote Sensing

Self Cite

View full text Add to dashboard Cite

This study presents finer structures and inter-seasonal evolutions of sea surface temperature (SST) fronts in wintertime in the northern South China Sea (SCS) by applying an entropy-based edge detection method to 7-year (2001-2007) satellitederived SST images with a grid size of 1 km. From monthly mean maps of SST front, six significant SST fronts were defined in the northern SCS. This study not only reveals the earlier defined frontal bands, but also provides finer structures and gradient variability of the fronts. One front alongside Luzon Island (the Philippines), which was undetected by a gradient-based method in previous studies, is well defined by the entropy-based method used in the present study. This result suggests that the gradient-based method might not be appropriate for front detection in coastal waters or marginal seas, but using SST data of lower spatial resolution SST data might not be suitable to describe the detailed structure of short or small fronts through the sophisticated edge detection methods.

show abstract

“…Because these upwelling regions are near to each other, distinguishing them using SST images can be a challenge. However, the boundaries of the upwelling region revealed that SST fronts can be accurately detected using an entropy-based edge-detection method (Shimada et al 2005;Lan et al 2009). A decadal warming phenomenon was revealed in the summertime SST images and, among them, the coldest three SST patterns were observed in 1982 -1988.…”

Section: Resultsmentioning

confidence: 99%

“…To the west of the PHC is the shallow Taiwan Banks (TWB). Numerous summertime upwelling zones have been identified using remote sensing and hydrological and biological observations (Hong et al 1991;Lan et al 2009). According to Tang et al (2002), two major upwelling areas exist in the TS, one roughly east of the TWB and the other along the China coastal region.…”

Section: Introductionmentioning

confidence: 99%

Long-Term (1982 - 2012) Summertime Sea Surface Temperature Variability in the Taiwan Strait

Lee¹,

Kuo²,

Chan³

et al. 2015

Terr. Atmos. Ocean. Sci.

Self Cite

View full text Add to dashboard Cite

Long-term (1982-2012) advanced very-high-resolution radiometer (AVHRR) data collected at a resolution of 0.04° clearly indicated sea surface temperature (SST) warming and variations associated with El Niño and Southern Oscillation (ENSO) in the Taiwan Strait (TS) during the summer. From 1982-2012 the spatially averaged warming trend in the TS was 0.057°C y-1. However, during the last 10 years the warming phenomenon appears to have halted and a slight cooling rate (0.03°C y-1) was observed. The monthly SST transition from June-July became increasingly sharp. The first mode (70%) of the empirical orthogonal function (EOF) analysis indicated an SST warming trend. The warming occurred primarily in the eastern strait. The warming slowed down and considerable inter-annual variation occurred in the period after 1994. EOF results applied to the data between 1994-2012 showed that the first EOF mode (55%) revealed a warming pattern, whereas the second EOF mode (12%) revealed a pattern that explained the inter-annual variation in the SST, which was strongly correlated with the wind speed. Strong winds enhanced the upwelling along the China coast, eastern Taiwan Banks (TWB) and southern Peng-Hu Islands, whereas the SST in eastern TS increased because of increased warm water transport from the South China Sea. The inter-annual variation in the southwesterly wind could be affected by both ENSO and the background Pacific Decadal Oscillation (PDO) phase. The strongest upwelling in the TS tended to occur when ENSO and PDO were in phase associated with the southwesterly wind.

show abstract

Summertime sea surface temperature fronts associated with upwelling around the Taiwan Bank

Cited by 31 publications

References 14 publications

Relationship between albacore (Thunnus alalunga) fishing grounds in the Indian Ocean and the thermal environment revealed by cloud-free microwave sea surface temperature

Relationship between albacore (Thunnus alalunga) fishing grounds in the Indian Ocean and the thermal environment revealed by cloud-free microwave sea surface temperature

Fine-scale sea surface temperature fronts in wintertime in the northern South China Sea

Long-Term (1982 - 2012) Summertime Sea Surface Temperature Variability in the Taiwan Strait

Contact Info

Product

Resources

About