Atef O. Sherif - CIMAP

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� RM resolution marks their core potential. Higher resolution improves the representation of landscape features such as mountain ranges, and lakes, as well as other surface features. � These give rise to local or regional circulation and precipitation features, modify temperature, winds, and so on. � Similar types of features include bathymetric detail, straits, etc. Higher resolution is furthermore beneficial for the simulation of synoptic and meso-scale systems including fronts, precipitation, and other extremes. � Another important output is the input that can be provided for impact studies � RMs adds useful information to GCM results, or sparse empirical data. The value of this information, however needs to be assessed,. � The mere appearance of more detail can be noted to provide incentives for stakeholders to consider Regional NWP models, when focus is on local-to-regional areas or extremes on, mountains, precipitation, winds along the coasts. 15 May 2008 A. O. <strong>Sherif</strong> NFS-AST Workshop on Supercomputing Applications in Climate and Remote Sensing Cairo Egypt, 13-16 May 2008 Cairo University FVLab 39
15 May 2008 A. O. <strong>Sherif</strong> NFS-AST Workshop on Supercomputing Applications in Climate and Remote Sensing Cairo Egypt, 13-16 May 2008 Cairo University FVLab � Lateral boundary conditions of Regional Models do not pose a „well-posed‟ Problem. � This signifies that a unique solution does not exist, i.e., it is not possible to specify exactly the right conditions. � Even if other constraints were fulfilled, the driving GCM model and the regional models have different resolutions and may also differ in their process descriptions. � Furthermore, GCM data for boundary conditions is typically available at 6 h or so intervals. The time resolution in Regional Models ranges from a few minutes to around half an hour. � Even though one interpolates in time between two successive boundary condition data sets to match the time resolution in the regional model, this gives rise to yet another inexactness in providing boundary conditions. Staniforth A. Regional modeling: a theoretical discussion. Meteorol. Atmos Phys 1997, 63. McDonald A. Lateral boundary conditions for operational regional forecast models: A review. HIRLAM Technical Report No. 32, HIRLAM Project, Norrko¨ping, Sweden; 1997 40
Page 1 and 2: Cairo University FVLab Presented By
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Page 5 and 6: � Aerodynamic modeling of Weather
Page 7 and 8: � The Egyptian Meteorological Aut
Page 11 and 12: � Global climate models (GCMs) ar
Page 13 and 14: � A Desire to use numerical meteo
Page 17 and 18: Initial version of the Model was fi
Page 19 and 20: � Several sets of simulations wer
Page 23 and 24: Monthly average wind speed at 100m
Page 27 and 28: 15 May 2008 A. O. Sherif WRF - Simu
Page 31 and 32: 15 May 2008 A. O. Sherif Wind Speed
Page 33 and 34: Day 1 Operation not an option 15 Ma
Page 35 and 36: Power Density Factor 1.20000 1.0000
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Page 43 and 44: � “I did not build on cultivate

Atef O. Sherif - CIMAP

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