Simulation of dispersion in moderately complex terrain—Part A. The fluid dynamic model

摘要: Abstract A three-dimensional time dependent model for the meso-γ-scale based on finite difference solution of hydro-, thermodynamical and turbulent energy equations is presented. The present version hydrostatic has a prescribed surface temperature input. Simulations with have been done an area in southern Sweden, Vanerborg-Trollhattan region, where series measurements carried out specific aim mind to obtain test data model. geographical characterized by topographical features meso-γ-scale, i.e. 2–20 km. Thus there are forested hills, relatively flat agricultural area, river valley extended lake within region. terrain height relief maximum 100 m typically 50 m. results from simulations presented here compared performed experimental area. show quite good agreement measured both mean quantities most cases. used as higher order closure dispersion Part B operational C.