The effect of water surface temperature on lake breezes and thermal internal boundary layers
- Raymond W. ArrittAffiliated withCooperative Institute for Research in the Atmosphere, Colorado State University
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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.
- The effect of water surface temperature on lake breezes and thermal internal boundary layers
Volume 40, Issue 1-2 , pp 101-125
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- Kluwer Academic Publishers
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- 1. Cooperative Institute for Research in the Atmosphere, Colorado State University, 80523, Fort Collins, CO, USA