1. - tBM - topographical boundary layer model Dr. O. Liechti OlivierLiechtiAuK@compuserve.com

2. Short Range Forecasting Methods of Fog, Visibility, and Low Clouds Phase IInventory Phase IIResearch & Development Phase IIIDissemination COST Action 722

3. Phase IIResearch & Development WG IInitial Data WG IIModels WG IIIStatistical Methods

4. WG IInitial data CDGradiosonde CDGremote sensing ZRHstations in complex topography ZRHmodel aircraft local vertical profiles

5. WG IIModels DGM - LM - PAFOG FARPEGE - ALADIN - COBEL/ISBA CHEZMW - aLMo - COBEL/ISBA EZMW - aLMo - tBM GFS - NMM - NMM 3D - 2D - 1D

6. pools of cold air locally enhanced snow grains

7. Zurich AirportWinterthur

8. IR radiative cooling

9. nocturnal cooling rates

10. morning fogfoggy days

11. thermodynamics of low stratus radiative loss of heat surface cooling convection supersaturation, condensation snow grains (locally enhanced)

12. simulation of pooling cold air IR radiative flux convection topographical volume effect local circulation through differential cooling topographical boundary layer model (tBM)

13. tBM for Zurich airport

14. area-elevation-distributions for the areas A, B, C, D tBM simulation (2-dim, 24 hrs)

15. A B C D T [C] tBM simulation (2-dim, 24 hrs) pure topographical effect !

16. A B C D h [mMSL] tBM simulation (2-dim, 24 hrs) pure topographical effect !

17. models in COST 722 modeltopoz-Mixx-Mixsoil COBELflatshear––1d-ISBA PAFOGflatshear––Bewuchs tBMV(z)convectioncirculation0d NMMflatparametr.circulation1d --> comparison @ Paris CDG 03/04/05