caa a22 4500 475777611 CHVBK 20180406123635.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1023/A:1002643921326 doi (NATIONALLICENCE)springer-10.1023/A:1002643921326 Bintanja Richard Institute for Marine and Atmospheric Research Utrecht, Utrecht University, 3508 TA, Utrecht, The Netherlands aut Snowdrift Suspension And Atmospheric Turbulence. Part II: Results Of Model Simulations [Elektronische Daten] [Richard Bintanja] An atmospheric surface-layer model is used to investigate the interactionbetween suspended snow particles and the near-surface flow. Themodel incorporates the effects of upward diffusion, gravitational settling and sublimation of snow particles in 48 size classes, the effects of snowdrift sublimation on the heat and moisture budget of the surface layer, and the buoyancy destruction of turbulent kinetic energy (TKE) caused by the presence of suspended particles. A new term in the E-ε closure model representing the buoyancy destruction due to suspended particles is included in the prognostic equation for TKE. Generally, model results indicate that the presence of suspended particles causes significant decreases in TKE, the dissipation rate, turbulent length scales and eddy exchange coefficients (up to 40%). It is found that the reduction in the eddy exchangecoefficients is due mainly to reductions in turbulent length scales. Theassociated particle Richardson number peaks near the saltation-suspensioninterface, but at higher levels in the surface layer the particle-induced buoyancy can also significantly affect the flow. A detailed analysis of the various snowdrift quantities, the TKE budget and the particle buoyancy effects on the flow is presented. Kluwer Academic Publishers, 2000 Drifting snow nationallicence Suspended snow nationallicence Sublimation nationallicence Stratified flow nationallicence Boundary-Layer Meteorology Kluwer Academic Publishers 95/3(2000-06-01), 369-395 0006-8314 95:3<369 2000 95 10546 https://doi.org/10.1023/A:1002643921326 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1002643921326 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Bintanja Richard Institute for Marine and Atmospheric Research Utrecht, Utrecht University, 3508 TA, Utrecht, The Netherlands aut NATIONALLICENCE 773 0- Boundary-Layer Meteorology Kluwer Academic Publishers 95/3(2000-06-01), 369-395 0006-8314 95:3<369 2000 95 10546 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer