Table of Contents - The Atmospheric Studies Group at TRC

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Section 1: Introduction Standard Gulf of Mexico Meteorology and Ozone Dataset o Meteorological, geophysical and ozone data required for CALMET/CALPUFF simulations within the MMS Gulf of Mexico region were prepared for year 2003. o USGS terrain elevation files with 90m resolution and USGS land use data files with 200m resolution were assembled for the domain. o Buoy stations in the domain were processed into 13 SEA.DAT files (1 station/file). o Upper-air stations in the domain were processed into 21 UP.DAT files (1 station/file). o 230 NWS hourly surface meteorological stations in the domain were processed into the SURF.DAT file. o 271 NWS precipitation stations in the domain were processed into the PRECIP.DAT file. o 201 ozone data stations in the domain were processed into the OZONE.DAT file. o One full year (2003) of gridded prognostic meteorological output fields from the Rapid Update Cycle (RUC) mesoscale weather model were reformatted into 50 tiles (90 RUC grid-points/tile), for the portion of the 20km RUC grid that covers the MMS Gulf of Mexico domain. o The RUCDECODE program was created to assemble RUC grid cell data from one or more tiles into a 3D.DAT file for a user’s CALMET domain. 1.3 Overview of the Modeling System The CALPUFF Modeling System includes three main components: CALMET, CALPUFF, and CALPOST and a large set of preprocessing programs designed to interface the model to standard, routinely-available meteorological and geophysical datasets. In the simplest terms, CALMET is a meteorological model that develops wind and temperature fields on a three-dimensional gridded modeling domain. Associated two-dimensional fields such as mixing height, surface characteristics, and dispersion properties are also included in the file produced by CALMET. CALPUFF is a transport and dispersion model that advects “puffs” of material emitted from modeled sources, simulating dispersion and transformation processes along the way. In doing so it typically uses the fields generated by CALMET, or as an option, it may use simpler non-gridded meteorological data much like existing plume models. Temporal and spatial variations in the meteorological fields selected are explicitly incorporated in the resulting distribution of puffs throughout a simulation period. The primary output files from CALPUFF contain either concentrations or deposition fluxes evaluated at selected receptor locations. CALPOST is used to process these files, producing tabulations that summarize the results of the simulation, identifying the highest and second highest 3-hour average concentrations at each receptor, for example. When performing visibility-related modeling, CALPOST uses concentrations from CALPUFF to compute extinction coefficients and related measures of visibility, reporting these for selected averaging times and locations. 1-7
Section 1: Introduction To enhance the functionality of the modeling system, a PC-based GUI is provided for nearly every component. The GUIs can be used to prepare the control file that configures a run, execute the corresponding component model, and conduct file management functions. The GUIs also contain an extensive help system that makes much of the technical information contained in this manual available to the user on-line. The modeling system may also be setup and run without the aid of the GUIs. The control file for each component is simply a text file that is readily edited, and it contains extensive information about model options, default values, and units for each variable. In addition to CALMET, CALPUFF, CALPOST, and their corresponding GUIs, the modeling system interfaces to several other models, which is facilitated by several preprocessors and utilities. Figure 1-1 displays the overall modeling system configuration. Four of the models shown in Figure 1-1 are external models that are not included in the CALPUFF system, but they can be interfaced with CALPUFF modules: MM5/MM4 (Penn State/NCAR Mesoscale Model) is a prognostic wind field model with four dimensional data assimilation (Anthes et al., 1987; Grell et al., 1996). The interface program (CALMM5) converts the MM5 data into a form compatible with CALMET. NAM(formerly Eta) (North American Mesoscale model), and the WRF (Weather Research and Forecasting) model are NCEP operational weather models. Eta/NAM/WRF model output files are produced for use by the Advanced Weather Interactive Processing System (AWIPS) in various AWIPS grids. The interface program CALETA converts the NAM and CALWRF converts the WRF output data into forms compatible with CALMET. RUC (Rapid Update Cycle) model is an NCEP operational weather model with high-frequency (every hour) short-range weather model forecasts (out to 12+ hours). The interface program CALRUC converts the RUC output data into a form compatible with CALMET. RAMS (Regional Atmospheric Modeling System, Version 4.3) model is a NOAA Air Resources Laboratory (ARL) numerical weather model that can be run at global, mesoscale, and local scales. The interface program CALRAMS converts the RAMS output data into a form compatible with CALMET. TAPM (The Air Pollution Model) is a CSIRO (Commonwealth Scientific Industrial Research Organisation) Lagrangian Part-Puff model, (Hurley 1998, 1999). The interface CALTAPM converts the TAPM output data into a form compatible with CALMET. CSUMM (a version of the Colorado State University Mesoscale Model) is a primitive equation wind field model (Kessler, 1989) which simulates mesoscale airflow resulting from differential surface heating and terrain effects. Various options for using CSUMM output with CALMET are provided. 1-8
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Section 8: CALMET Model Files (e.g.
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Section 8: CALMET Model Files 8.10
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Section 8: CALMET Model Files CALME
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Section 8: CALMET Model Files 8.1.1
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Section 9: CALPUFF 9. CALPUFF The C
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Section 9: CALPUFF The control file
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Section 9: CALPUFF Table 9-1: Input
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Section 9: CALPUFF 17a,b Non-gridde
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Section 9: CALPUFF MASSBAL.DAT outp
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Section 9: CALPUFF d The filenames
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Section 9: CALPUFF >0 = File update
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Section 9: CALPUFF 0 = chemical tra
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Section 9: CALPUFF [DIAGNOSTIC FEAT
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Section 9: CALPUFF ! CSPEC = SO2 !
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Section 9: CALPUFF WGS-84 NAS-C NAR
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Section 9: CALPUFF for selected spe
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Section 9: CALPUFF ---------------
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Section 9: CALPUFF Input Group 11 O
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Section 9: CALPUFF (XLAIIN) Default
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Section 9: CALPUFF Minimum mixing h
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Section 9: CALPUFF Near-Surface dep
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Section 9: CALPUFF Sample CALPUFF C
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Section 9: CALPUFF -------- a Data
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Section 9: CALPUFF Number of buoyan
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Section 9: CALPUFF Number of non-gr
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Section 9: CALPUFF IOUTU IOVERS int
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Section 9: CALPUFF IMFLX integer Co
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Section 9: CALPUFF BCKNH3(12) real
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Section 9: CALPUFF CDIV(2) real Div
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Section 9: CALPUFF *MDEPBC integer
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Section 9: CALPUFF source is treate
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Section 9: CALPUFF (i.e., !END!). I
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Section 9: CALPUFF (i.e., !END!). I
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Section 9: CALPUFF terminator (i.e.
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Section 9: CALPUFF Table 9-3 (Concl
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Section 9: CALPUFF 9.2 Meteorologic
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Section 9: CALPUFF if(nssta.ge.1)th
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Section 9: CALPUFF Table 9-4: CALME
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Section 9: CALPUFF Table 9-4 (Concl
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Section 9: CALPUFF variable dispers
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Section 9: CALPUFF NCOMM+6 * intege
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Section 9: CALPUFF table. A descrip
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Section 9: CALPUFF Table 9-10: PLMM
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Section 9: CALPUFF 9.2.4 SURFACE.DA
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Section 9: CALPUFF Table 9-12: Samp
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Section 9: CALPUFF Table 9-13 (cont
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Section 9: CALPUFF Table 9-14: SURF
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Section 9: CALPUFF Table 9-14 (conc
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Section 9: CALPUFF Table 9-15 (cont
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Section 9: CALPUFF 9.3 Point Source
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Section 9: CALPUFF Table 9-17: PTEM
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Section 9: CALPUFF 9.4 Buoyant Area
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Section 9: CALPUFF Table 9-21: BAEM
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Section 9: CALPUFF . . . . . . . .
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Section 9: CALPUFF The model checks
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Section 9: CALPUFF Table 9-43: HILL
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Section 9: CALPUFF where the follow
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Section 9: CALPUFF 9.14 Mass Flux B
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Section 9: CALPUFF Table 9-49: FLUX
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Section 9: CALPUFF 9.15 CALPUFF Out
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Section 9: CALPUFF IF(NVL1.GT.0) RE
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Section 9: CALPUFF Figure 9-1: Prof
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Section 9: CALPUFF Table 9-64 summa
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Section 9: CALPUFF Figure 9-2: Map
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Section 9: CALPUFF Table 9-67: OPTH
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Section 9: CALPUFF This process is
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Section 10: POSTPROCESSORS 10.1 APP
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Section 10: POSTPROCESSORS Table 10
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Section 10: POSTPROCESSORS NFILE S
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Section 10: POSTPROCESSORS The name
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Section 10: POSTPROCESSORS --------
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Section 10: POSTPROCESSORS Chemical
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Section 10: POSTPROCESSORS N S PM10
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