Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/45438
Title: Study on temporal-spatial distribution and changes of dissolved oxygen in the Yellow Sea from 1965 to 2014
Authors: Xiang, Xianquan
Lu, Wenhai
YanXu
Yang, Lu
Li, Xiao
Liu, Shuming
Keywords: Yellow Sea;Dissolved oxygen;Temporal changes;Spatial distribution features;Sectional distribution;Vertical structure
Issue Date: Dec-2018
Publisher: NISCAIR-CSIR, India
Abstract: Multi-source and long-term sequenced data were used to analyse thetemporal-spatial distribution and changes of Dissolved oxygen (DO)for the last 50a.Results show that the annual mean values of DO are mostly between 8 mg/L and 9 mg/L, which have varied within a slight trend of declination. The surface DO concentration is higher than the bottom in winter, with the similar distribution trend and the inshore waters overall higher than offshore areas. In summer, the surface DO concentration is lower than the bottom. The vertical distribution of the subsurface DO values are above 9 mg/L, significantly higher than the surface and bottom DO values in summer and autumn. In north Yellow Sea, the DO concentration tended to vertically uniform in spring, autumn, and winter. In south Yellow Sea, the maximum DO concentration zones are formed under the effects of thermocline in summer and autumn. According to the correlation analysis, in winter, the variation of DO is mainly influenced by the sea water temperature, and the effect of seawater salinity is increased in summer. This study was performed based on a large amount of historical data, and the research results would be of great significance for further learning about the physical and chemical processes of the Yellow Sea.
Page(s): 2442-2453
URI: http://nopr.niscair.res.in/handle/123456789/45438
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.47(12) [December 2018]

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