Large-eddy simulation of katabatic winds. Part 2: Sensitivity study and comparison with analytical models |
| |
Authors: | Simon L Axelsen Han van Dop |
| |
Institution: | 1.IMAU, Utrecht University,Utrecht,The Netherlands |
| |
Abstract: | Steady-state quasi-one-dimensional large-eddy simulations of slope winds over simple terrain are presented. The model results
of up-slope flow are compared to previous simulations by Schumann (1990), and good agreement is found. Modelled downslope
winds are compared to meteorological observations from two glaciers. The vertical profiles of velocity and buoyancy agree
with the observations, whereas larger discrepancies are found between the modelled and the observed momentum and buoyancy
flux profiles. Despite some discrepancies, the model captures the main characteristics of the observed downslope winds fairly
well. The numerical model is used in a companion paper (Part II) to study how some external input parameters affect katabatic
winds. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|