The Changing Bohai and Yellow Seas: A Physical View

Wei, Hao; Zhang, Haiyan; Yang, Wei; Feng, Jianlong; Zhang, Cuicui

doi:10.1007/978-981-15-4886-4_7

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…The amplitudes, phases, and amphidromic points are generally consistent with those in the Editorial Board for Marine Atlas, with small difference of the location of the amphidromic point for M 2 constituent (Chen and Editorial Board for Marine Atlas, 1993). The small difference is mainly attributed to the changes of the bathymetry induced by sea reclamation and sea level rise in recent years (Wei et al, 2020).…”

Section: Model Validationmentioning

confidence: 96%

“…The complex coastlines and islands may induce horizontal shear of velocity, which could trigger submesoscale fronts (Dauhajre et al, 2017;Li et al, 2022). It also has a typical monsoon climate characteristic, including the seasonal variations of heat flux and winds (Wei et al, 2020). Therefore, submesoscale motions may be affected by the bathymetry, tides, winds, and some other factors in the Bohai Sea.…”

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confidence: 99%

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Temporal and spatial characteristics of submesoscale motions in the Bohai Sea

Wang²,

Wang³

2022

Front. Mar. Sci.

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Submesoscale motions are ubiquitous in the ocean, playing a significant role in energy transfer, mass transport, and biogeochemical processes. However, little attention has been drawn to the submesoscale dynamics in shallow coastal waters. In the present study, submesoscale motions in the Bohai Sea, a typical shallow sea with mean depth of about 18 m, are studied using a validated high-resolution (~ 500 m) model based on Regional Oceanic Modeling System (ROMS). The results show that submesoscale structures in the Bohai Sea are mainly located in the shallow coastal regions, the Bohai Strait, the areas around islands and headlands, and mostly tend to be parallel to the isobaths. The periodic variations of submesoscale motions are closely related to the tidal, spring-neap, and seasonal cycles in the Bohai Sea. The spring-neap variations of submesoscale motions are mainly attributed to the curl of vertical mixing, which is stronger during spring tides than neap tides. Compared with winter, the stronger background horizontal and vertical density variance in summer are conducive to frontogenesis, resulting in more active submesoscale motions. The results in this study are expected to contribute to enriching our knowledge about submesoscale dynamics in shallow coastal seas.

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Section: Model Validationmentioning

confidence: 96%

mentioning

confidence: 99%

Temporal and spatial characteristics of submesoscale motions in the Bohai Sea

Wang²,

Wang³

2022

Front. Mar. Sci.

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“…At present, the global average surface temperature has increased by 2.0°C or more since preindustrial times (Hoegh-Guldberg et al, 2019), and it is predicted that global ocean temperatures are expected to rise by 1-4°C by 2100 (Alfonso et al, 2021). In the Bohai Sea, sea surface temperatures are sensitive to global warming because of its shallow depth, at almost twice the global average rate (Wei et al, 2020). According to the Weiss equation (Eq.…”

Section: Effects Of Stratification Temperature and Salinity On Do In ...mentioning

confidence: 99%

Oxygen Deficit Area Spatial-temporal Heterogeneity in Bohai Sea: Formation and their Drivers

Zhao

Xiao

Guo

et al. 2022

Preprint

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In recent years, oxygen deficit in coastal seas has seriously affected the marine ecological environment. Using a large number of observed data in May and August from 2015 to 2018, we obtain the vertical distribution of DO and related hydrological factors in the central section of the Bohai Sea by three-dimensional spatial interpolation to analyze the variation characteristics and its potential changing drivers. The results show that there are two typical oxygen deficit regions in the bottom water of the central Bohai Sea in summer, which are located off Qinhuangdao (QHD) and off the Yellow River estuary (YRE). We analyze the main mechanisms for the formation of oxygen deficit regions: continuous strong stratification and high temperature in summer as well as the aerobic decomposition of organic matter produced after the death of the massive phytoplankton in spring and summer during the slow sedimentation process. In addition, the physical-biological mechanisms of QHD and YRE, the two oxygen deficit core regions, are obviously different. This comparison highlights the influence of the initiation time of stratification enhancement and phytoplankton species on the degree of oxygen deficit, which provides a new understanding for perfecting the formation mechanism of oxygen deficit. Finally, two oxygen deficit regions are simply predicted, which highlights the seriousness of oxygen deficit in Bohai Sea.

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Assessment of the spatiotemporal variability of seawater temperature and salinity in the Yellow and Bohai seas from multiple high-resolution reanalysis datasets

Zhou

et al. 2023

Ocean Dynamics

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The Changing Bohai and Yellow Seas: A Physical View

Cited by 5 publications

References 30 publications

Temporal and spatial characteristics of submesoscale motions in the Bohai Sea

Temporal and spatial characteristics of submesoscale motions in the Bohai Sea

Oxygen Deficit Area Spatial-temporal Heterogeneity in Bohai Sea: Formation and their Drivers

Assessment of the spatiotemporal variability of seawater temperature and salinity in the Yellow and Bohai seas from multiple high-resolution reanalysis datasets

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