Slayt 1 - RTC, Regional Training Centre - Turkey

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Thermal Wind (Remember?)The thermal wind is a measure of the Geostrophic wind shear:Written in vector form:Can also be related to:If the lines are Z, GWIf the lines are T, TWThe jet stream is a wellknownexample of thethermal wind. It arises fromthe horizontal temperaturegradient from the warmtropics to the cold polarregions
Basic Principles of NWP(Fred Carr) In 1905 Bjerknes recognized that NWP was possible in principle Eqs governing time rate of change of meteorological values are known Can integrate these eqs forward in time to get new values Must have “suitable” initial conditions (observations) in order to dothis
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ATMOSPHERIC MODELINGNUMERICAL WEATH
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MTO477Brief History of Meteorology
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Excerpts from Aristotle’sMeteorol
Page 72: The Forces of a Parcel of Air
Page 84 and 85: Atmospheric Model Aerosol processes
Page 86 and 87: Highlights 1955 - First Operational
Page 88 and 89: Highlights 1996 - AVN/MRF changed t
Page 90 and 91: Highlights2001 (November) - Major c
Page 92 and 93: Equivalent-Barotropic Atmosphere Co
Page 96 and 97: Written in general form:tAiA i = de
Page 98 and 99: Example of a diagnostic equation:Co
Page 100 and 101: NUMERICAL WEATHER PREDICTIONLECTURE
Page 102 and 103: Model ComponentsForecast:This repre
Page 104 and 105: Model ComponentsDynamics:In NWP, dy
Page 106 and 107: Parameterized Processes and Paramet
Page 108 and 109: Parameterizing Sub Grid-Scale Proce
Page 110 and 111: Accounting for the Effects of Physi
Page 112 and 113: Outlook As computer power increases
Page 114 and 115: DiscussionThe correct choices are (
Page 116 and 117: 1- NWP EquationsIn NWP, future valu
Page 118 and 119: 2-The Primitive Equations
Page 120 and 121: Horizontal advection of west-to-eas
Page 122 and 123: Additional Information: Coriolis Fo
Page 124 and 125: Additional Information: Coriolis Fo
Page 126 and 127: Temperature Forecast EquationTime c
Page 128 and 129: Hydrostatic or Vertical MomentumEqu
Page 130 and 131: Physical ProcessesAll of the foreca
Page 132 and 133: How Models Solve the ForecastEquati
Page 134 and 135: Representing the Forecast Variables
Page 136 and 137: 3-Grid Point: Data RepresentationGr
Page 138 and 139: 4-Grid Point ModelsIn the real atmo
Page 140 and 141: 5- SPECTRAL MODELHow Data are Repre
Page 142 and 143: Use of Grid Point Methods in Spectr
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Impacts of Grid Point Physics Calcu
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7- Hydrostatic Models Most grid poi
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Non-Hydrostatic Models In addition,
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HYDROSTATIC MODELS Characteristics
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References Carr, F.H., 1988: Introd
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The dependent variables in this set
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Problems in finding suitable latera
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Conditions whichOnemakeBIGthe primi
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Courant-Friederichs-Lewy criteria C
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Setting up a Numerical Model Grid p
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Horizontal resolution Horizontal re
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Sigma Coordinate System (σ)p• De
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Convective ParameterizationSchemes
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«Computations indicate that a perf
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Slayt 1 - RTC, Regional Training Centre - Turkey

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