Differential Mixed-layer Deepening in Lakes and Reservoirs

作者: G. J. Parker , J. Imberger

DOI: 10.1007/978-94-009-4820-4_3

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摘要: Detailed meteorological measurements are used, together with fine-scale of the density structure in a reservoir, to show that differential deepening diurnal mixed layer may occur as result horizontal spatial variability wind stress. In study, one-dimensional integral model is used simulate energetics mixed-layer deepening. A simple algorithm temperature changes due advection incorporated into model. The simulation shows that, during study period, shear production was major source turbulent kinetic energy for deepening, but duration sufficiently short so depth closely reflected local stress, even though Wedderburn number near unity. gradients set up by increased exposed region reservoir resulted flow driven gravity, typical overflow velocities approximately 0·02 m s-1.

参考文章(31)
T. M. Dillon, D. R. Caldwell, An oceanic microstructure measuring system Corvallis, Or. : School of Oceanography, Oregon State University. ,(1981)
Timothy W. Kao, DENSITY CURRENTS AND THEIR APPLICATIONS Journal of Hydraulic Engineering. ,vol. 103, pp. 543- 555 ,(1977) , 10.1061/JYCEAJ.0004752
Hugo B Fischer, None, Mixing in Inland and Coastal Waters ,(2012)
John L. Lumley, Hendrik Tennekes, A First Course in Turbulence ,(1972)
J Imberger, P F Hamblin, Dynamics of Lakes, Reservoirs, and Cooling Ponds Annual Review of Fluid Mechanics. ,vol. 14, pp. 153- 187 ,(1982) , 10.1146/ANNUREV.FL.14.010182.001101
J. Weinstock, Vertical Turbulent Diffusion in a Stably Stratified Fluid Journal of the Atmospheric Sciences. ,vol. 35, pp. 1022- 1027 ,(1978) , 10.1175/1520-0469(1978)035<1022:VTDIAS>2.0.CO;2
B. B. Hicks, A procedure for the formulation of bulk transfer coefficients over water Boundary-Layer Meteorology. ,vol. 8, pp. 515- 524 ,(1975) , 10.1007/BF02153568
S. A. Thorpe, Turbulence in stably stratified fluids: A review of laboratory experiments Boundary-Layer Meteorology. ,vol. 5, pp. 95- 119 ,(1973) , 10.1007/BF02188314
D. C. Stillinger, K. N. Helland, C. W. Van Atta, Experiments on the transition of homogeneous turbulence to internal waves in a stratified fluid Journal of Fluid Mechanics. ,vol. 131, pp. 91- 122 ,(1983) , 10.1017/S0022112083001251