Free and Forced Rossby Waves in the Western South China Sea Inferred from Jason-1 Satellite Altimetry Data

Wu, Xiangyu; Xie, Qiang; He, Zhongshi; Wang, Dongxiao

doi:10.3390/s8063633

Cited by 10 publications

(4 citation statements)

References 22 publications

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“…The ratio of PEG to PEDOT was estimated on the basis that it requires 2.25 moles of Fe(III) to produce 1 mole of PEDOT. 38 The amount of PEG added to each oxidant solution was chosen in order to achieve films with 30%, 50% and 70% PEG contents as compared to PEDOT. For the purpose of lowering the final film thickness, the oxidant solutions were diluted with ethanol.…”

Section: Methodsmentioning

confidence: 99%

PEDOT:TOS with PEG: a biofunctional surface with improved electronic characteristics

Jimison¹,

Hama²,

Strakosas³

et al. 2012

J. Mater. Chem.

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Devices based on conducting polymers offer great promise for interfacing with cells. Here, we use vapour phase polymerisation to create a biofunctional composite material of the conducting polymer poly(3,4-ethylenedioxythiophene):tosylate (PEDOT:TOS) and the biologically relevant poly(ethylene glycol) (PEG). On the addition of PEG, electroactivity of the PEDOT is maintained, conductivity is increased, and its performance as the active material in a transistor is unaffected. Both direct and indirect biocompatibility tests prove that PEDOT:TOS and PEDOT:TOS:PEG are biocompatible and nontoxic to mammalian cells. A functionalised PEG (PEG(COOH)) was additionally introduced into PEDOT:TOS to showcase the potential of this material for use in applications requiring biofunctionalisation.

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Section: Methodsmentioning

confidence: 99%

PEDOT:TOS with PEG: a biofunctional surface with improved electronic characteristics

Jimison¹,

Hama²,

Strakosas³

et al. 2012

J. Mater. Chem.

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“…Oceanic Rossby and Kelvin waves certainly contribute to the intensification of oceanic circulation, but they are not interesting for us because these waves have a large wavelength (of the order of 1000 km), slow propagation (of the order of 1-10 km per day), and a period of more than 70 days (Cipollini et al, 1997;Hendon et al, 1998;Quartly et al, 2003;Wu et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

Influence of temperature on the infradian growth rhythm inUlva lactuca(Chlorophyta)

Kalita

Titlyanov

2013

European Journal of Phycology

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The vegetative growth of Ulva lactuca was studied to determine if the growth rate of the alga is driven by infradian rhythmicity. The influence of temperature on the infradian rhythm of growth was also investigated. Discs of Ulva were grown in controlled laboratory conditions at different combinations of temperature (5, 10, 15, 20°С) and irradiance (40 and 60 μmol photons m -2 s -1 ) under 12 : 12 h light : dark cycles. The growth rates exhibited a rhythmic pattern with one major peak every 2 or 3 days. Growth at 5 or 10°С increased the prevalence of 3-day cycles and maintained U. lactuca in the vegetative growth stage. In contrast, growth at 15 or 20°С provoked a predominance of the 2-day cycle and induced reproduction. The 2-or 3-day cycles were combined in longer cycles having a period close to 6 days. We suppose that the 2-, 3-and 6-day rhythms of physiological processes are related to large-scale Rossby and Kelvin waves, which produce oscillations in the geomagnetic field and seawater temperature with the same periods. The predominance of 2-day or 3-day fluctuations of the geomagnetic field and temperature probably determine the prevalence of reproduction and vegetative growth, respectively, in Ulva.

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“…Xie et al [88] found that the 30-60 day intraseasonal oscillation of SST associated with the SCSWBC was under the influence of the Vietnam coastal upwelling [67,68], and this intraseasonal oscillation amplitude was obviously more significant near Vietnam coast than in any other regions. The analysis of moored buoy data found that there was also a significant period of 40-70 day intraseasonal oscillation in the subsurface near the SCSWBC region [89]. Zhuang et al [90] noted that there existed a weak seasonal signal between 100-and 200-m isobaths in the SCSWBC, which separated the strong intraseasonal signals of shallow and deep waters.…”

Section: Air-sea Interactionmentioning

confidence: 99%

Progress of regional oceanography study associated with western boundary current in the South China Sea

et al. 2013

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Recent progress of physical oceanography in the South China Sea (SCS) associated with the western boundary current (WBC) and eddies is reviewed in this paper. It includes Argo observations of the WBC, eddy detection in the WBC based on satellite images, cross-continental shelf exchange in the WBC, eddy-current interaction, interannual variability of the WBC, air-sea interaction, the SCS throughflow (SCSTF), among others. The WBC in the SCS is strong, and its structure, variability and dynamic processes on seasonal and interannual time scales are yet to be fully understood. In this paper, we summarize progresses on the variability of the WBC, eddy-current interaction, air-sea interaction, and the SCSTF achieved in the past few years. Firstly, using the drifting buoy observations, we point out that the WBC becomes stronger and narrower after it reaches the central Vietnam coast. The possible mechanisms influencing the ocean circulation in the northern SCS are discussed, and the dynamic mechanisms that induce the countercurrent in the region of northern branch of WBC in winter are also studied quantitatively using momentum balance. The geostropic component of the WBC was diagnosed using the ship observation along 18°N, and we found that the WBC changed significantly on interannual time scale. Secondly, using the ship observations, two anti-cyclonic eddies in the winter of 2003/2004 in the northern SCS, and three anti-cyclonic eddies in the summer of 2007 along 18°N were studied. The results show that the two anti-cyclonic eddies can propagate southwestward along the continental shelf at the speed of first Rossby wave (~0.1 m s 1 ) in winter, and the interaction between the three anti-cyclonic eddies in summer and the WBC in the SCS is preliminarily revealed. Eddies on the continental shelf of northern SCS propagated southeastward with a maximum speed of 0.09 m s 1 , and those to the east of Vietnam coast had the largest kinetic energy, both of which imply strong interaction between eddy activity and WBC in the SCS. Thirdly, strong intraseasonal variability (ISV) of sea surface temperature (SST) near the WBC regions was found, and the ISV signal of SST in winter weakens the ISV signal of latent heat flux by 20%. Fourthly, the long-term change of SCSTF volume transport and its connection with the ocean circulation in the Pacific were discussed.South China Sea, western boundary current, eddy, eddy-current interaction, intraseasonal variability, South China Sea thoughflow Citation:Wang D X, Liu Q Y, Xie Q, et al. Progress of regional oceanography study associated with western boundary current in

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Free and Forced Rossby Waves in the Western South China Sea Inferred from Jason-1 Satellite Altimetry Data

Cited by 10 publications

References 22 publications

PEDOT:TOS with PEG: a biofunctional surface with improved electronic characteristics

PEDOT:TOS with PEG: a biofunctional surface with improved electronic characteristics

Influence of temperature on the infradian growth rhythm inUlva lactuca(Chlorophyta)

Progress of regional oceanography study associated with western boundary current in the South China Sea

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