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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Effects of Prevailing Winds on Turbidity of a Shallow Estuary
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Effects of Prevailing Winds on Turbidity of a Shallow Estuary

机译：盛行风对浅河口浊度的影响

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摘要

Estuarine waters are generally more turbid than lakes or marine waters due to greater algal mass and continual re-suspension of sediments. The varying effects of diurnal and seasonal prevailing winds on the turbidity condition of a wind-dominated estuary were investigated by spatial and statistical analyses of wind direction, water level, turbidity, chlorophyll a, and PAR (Photosynthetically Active Radiation) collected in Lake Pontchartrain, Louisiana, USA. The prolonged prevailing winds were responsible for the long-term, large-scale turbidity pattern of the estuary, whereas the short-term changes in wind direction had differential effects on turbidity and water level in varying locations. There were temporal and spatial changes in the relationship between vertical light attenuation coefficient (Kd) and turbidity, which indicate difference in phytoplankton and color also affect Kd. This study demonstrates that the effect of wind on turbidity and water level on different shores can be identified through system-specific analyses of turbidity patterns.
机译：河口水通常比湖泊或海水更浑浊，这是由于藻类质量更大且沉积物不断重新悬浮所致。通过对蓬查特雷恩湖（Lake Pontchartrain）收集的风向，水位，浊度，叶绿素a和PAR（光合有效辐射）进行空间和统计分析，研究了每日和季节性盛行风对以风为主的河口浊度条件的不同影响，美国路易斯安那州。长期盛行的风是造成河口长期大范围浊度的原因，而短期风向的变化会对不同位置的浊度和水位产生不同的影响。垂直光衰减系数（Kd）与浊度之间的关系存在时空变化，这表明浮游植物和颜色的差异也会影响Kd。这项研究表明，可以通过系统特定的浊度模式分析来确定风对不同海岸的浊度和水位的影响。

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