The effect of water surface temperature on lake breezes and thermal internal boundary layers
The effect of water surface temperature on lake breezes and thermal internal boundary layers
复制标题
水面温度对湖风和热内边界层的影响
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
R. Arritt
中科院分区：
文献类型：
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作者：
R. Arritt
一个二维预报数值模式曾被用来研究Keen和里昂（1978）报道的一次湖风事件。模型预测显示与观测结果相当吻合。对于成熟的湖风，该模型预测了在观测值的1.5 m s−1内的海岸流入，在观测值的50-90 m内的湖风深度，以及在观测值的6 km内的内陆渗透。热内边界层（TIBL）的顶部与预测的湍流动能分布的最小值。这可能是后果的尝试，以评估污染物的扩散，使用数值models.Predicted湖风特性表现出对水面温度的敏感性很小，除了当水面温度增加到一个值超过内陆最高温度。最敏感的湖风特征是TIBL，它随着内陆距离的增加而增长得更慢，并且随着湖面变冷而持续更长的内陆距离。
A two-dimensional prognostic numerical model has been used to study a lake breeze event reported by Keen and Lyons (1978). Model predictions showed fair to good agreement with the observations. For the mature lake breeze, the model predicted inflow at the coast within about 1.5 m s−1 of the observed value, lake breeze depth within 50–90 m of the observed, and inland penetration within about 6 km of the observed. The top of the thermal internal boundary layer (TIBL) was associated with a minimum in the predicted turbulent kinetic energy profile. This may be of consequence for attempts to evaluate pollutant dispersion using numerical models.Predicted lake breeze characteristics showed little sensitivity to temperature of the water surface, except when the water surface temperature was increased to a value exceeding the inland maximum temperature. The most sensitive lake breeze characteristic was the TIBL, which grew more slowly with inland distance and persisted for a greater distance inland as the lake surface became colder.