Radon traced seasonal variations of water mixing and accompanying nutrient and carbon transport in the yellow-Bohai Sea

2021 ◽  
pp. 147161
Author(s):  
Xiaoxiong Wang ◽  
Xiaogang Chen ◽  
Jianan Liu ◽  
Fenfen Zhang ◽  
Linwei Li ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Bohai Sea ◽  
Water Mixing ◽  
Carbon Transport

scholarly journals Seasonal variation of the principal tidal constituents in the Bohai Sea

Ocean Science ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Daosheng Wang ◽  
Haidong Pan ◽  
Guangzhen Jin ◽  
Xianqing Lv
Keyword(s):  
Seasonal Variation ◽  
Harmonic Analysis ◽  
Sea Level ◽  
Seasonal Variations ◽  
Eddy Viscosity ◽  
Bohai Sea ◽  
Phase Lag ◽  
Vertical Eddy Viscosity ◽  
Tidal Constituents ◽  
Vertical Eddy

Abstract. The seasonal variation of tides plays a significant role in water level changes in coastal regions. In this study, seasonal variations of four principal tidal constituents, M2, S2, K1, and O1, in the Bohai Sea, China, were studied by applying an enhanced harmonic analysis method to two time series: 1-year sea level observations at a mooring station (named E2) located in the western Bohai Sea and 17-year sea level observations at Dalian. At E2, the M2 amplitude and phase lag have annual frequencies, with large values in summer and small values in winter, while the frequencies of S2 and K1 amplitudes are also nearly annual. In contrast, the O1 amplitude increases constantly from winter to autumn. The maxima of phase lags appear twice in 1 year for S2, K1, and O1, taking place near winter and summer. The seasonal variation trends estimated by the enhanced harmonic analysis at Dalian are different from those at E2, except for the M2 phase lag. The M2 and S2 amplitudes show semi-annual and annual cycles, respectively, which are relatively significant at Dalian. The results of numerical experiments indicate that the seasonality of vertical eddy viscosity induces seasonal variations of the principal tidal constituents at E2. However, the tested mechanisms, including seasonally varying stratification, vertical eddy viscosity, and mean sea level, do not adequately explain the observed seasonal variations of tidal constituents at Dalian.

scholarly journals Spatial Distributions and Seasonal Variations of Dissolved Black Carbon in the Bohai Sea, China

2016 ◽  
Vol 74 ◽  
pp. 214-227 ◽  
Author(s):  
Guopei Huang ◽  
Yingjun Chen ◽  
Chongguo Tian ◽  
Jianhui Tang ◽  
Hua Zhang ◽  
...  
Keyword(s):  
Black Carbon ◽  
Seasonal Variations ◽  
Bohai Sea ◽  
Spatial Distributions ◽  
The Bohai Sea

Seasonal variations of nutrient concentrations and their ratios in the central Bohai Sea

2021 ◽  
pp. 149416
Author(s):  
Xiaokun Ding ◽  
Xinyu Guo ◽  
Huiwang Gao ◽  
Jie Gao ◽  
Jie Shi ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Bohai Sea ◽  
Nutrient Concentrations

Seasonal variations in AADSAS applicants

1985 ◽  
Vol 49 (6) ◽  
pp. 445-447
Author(s):  
E Solomon ◽  
D Stoll
Keyword(s):  
Seasonal Variations
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