Table of Contents - The Atmospheric Studies Group at TRC

Section 1: Introduction
List of Figures
Figure 1-1:
Page
Overview of the program elements in the CALMET/CALPUFF
modeling system. Also shown are the associated CALGRID
photochemical model, the KSP particle model, and mesoscale
meteorological models that may include MM5/MM4, NAM(Eta), WRF,
RUC, RAMS, TAPM and CSUMM. ................................................................... 1-10
Figure 1-2: Meteorological modeling: CALMET modeling flow diagram. ........................... 1-15
Figure 1-3: Dispersion Modeling: CALPUFF modeling flow diagram.................................. 1-16
Figure 1-4: Postprocessing: PRTMET postprocessing flow diagram..................................... 1-17
Figure 1-5: Postprocessing: CALPOST postprocessing flow diagram................................... 1-18
Figure 1-6:
Flow diagram of the diagnostic wind model in CALMET. Winds
derived from mesoscale models MM4/MM5, NAM(Eta), WRF, RUC,
RAMS, TAPM or CSUMM can be introduced as the initial guess field A,
or the Step 1 field B. Mesoscale model wind data (except CSUMM) can
also be treated as “observations” C. Path A is recommended. ............................ 1-20
Figure 2-1: Processing Geophysical Data................................................................................ 2-2
Figure 2-2: Spatial coverage of each GTOPO30 tiles (files)................................................... 2-5
Figure 7-1:
Figure 7-2:
Figure 7-3:
MM5 horizontal grid (Arakawa B-grid) showing the staggering of the dot
(.) and cross (x) grid points. The smaller inner box is a representative
mesh staggering for a 3:1 coarse-grid distance to fine-grid distance ratio
(from NCAR, 1998).............................................................................................. 7-7
Schematic representation of the vertical structure used in MM5. The
example is for 15 vertical layers. Dashed lines denote half-sigma levels,
solid lines denote full-sigma levels (from NCAR, 1998). ................................... 7-8
CALMET non-staggered horizontal grid system. All variables are
defined at the grid points located in the center of each grid cell. The grid
origin (X o , Y o ) is also shown. ............................................................................... 7-9
Figure 7-4: Domain coverage for AWIPS 212 and 218 grids. ............................................... 7-27
Figure 7-5: Domain coverage for AWIPS 245, 246, 247, 248, 249, and 250 grids................ 7-28
Figure 7-6: Tiles for AWIPS 218 grid.................................................................................... 7-29
Figure 7-7:
Domain coverage for RUC 20km and 40km grids. Both are denoted by
the solid-line boundary. The dashed-line boundary is the NAM/ETA
computational domain.......................................................................................... 7-43
Figure 7-8: Arakawa-C grid used in RAMS.......................................................................... 7-51
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