Generic Guidance and Optimum Model Settings for the CALPUFF ...

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Disclaimer This report was prepared by the Atmospheric Studies Group from TRC Environmental Corporation in good faith exercising all due care and attention, but no representation or warranty, express or implied, is made as to the relevance, accuracy, completeness or fitness for purpose of this document in respect of any particular user’s circumstances. Users of this document should satisfy themselves concerning its application to, and where necessary seek expert advice in respect of, their situation. The views expressed within are not necessarily the views of the Office of Environment and Heritage (OEH) and may not represent OEH policy. © Copyright State of NSW and the Office of Environment and Heritage NSW
Contents SCOPE OF WORK AND BACKGROUND ................................................................................... 1 A.1 Introduction................................................................................................................ 1 A.2 Requirements of the NSW OEH ............................................................................... 1 1. INTRODUCTION .............................................................................................................. 3 2. GUIDANCE ON CALMET CONFIGURATIONS ........................................................... 4 2.1 Overview ..................................................................................................................... 4 2.2 General Guidance for CALMET.............................................................................. 4 2.2.1 CALMET Overview...................................................................................... 4 2.3 Methodologies for Running CALMET .................................................................... 5 2.3.1 No-Observations Approach ............................................................................. 6 2.3.2 Hybrid Mode.................................................................................................... 7 2.3.3 Observations Only....................................................................................... 10 2.3.4 Single Station Meteorology......................................................................... 11 2.3.5 Screening Model runs ................................................................................. 11 2.4 Prognostic-Derived Surface (SURF.DAT) and Upper (UP.DAT) files ............... 12 2.5 Seven Critical CALMET Parameters When Using Observations....................... 12 2.6 Other Important Parameters – Overwater Surface Fluxes and Mixing Heights13 3 RECOMMENDED MODEL OPTION SETTINGS FOR CERTAIN CONDITIONS AND SCENARIOS ................................................................................. 17 3.1 Introduction.............................................................................................................. 17 3.2 Complex terrain ....................................................................................................... 17 3.2.1 Terrain Data ................................................................................................ 17 3.2.2 Choosing Grid Resolution and Model Domain Size................................. 18 3.2.3 Choosing a value for TERRAD.................................................................. 18 3.2.4 Complex Terrain Sub-Grid Scale Terrain Features (CTSG).................. 19 3.3 Shoreline Fumigation............................................................................................... 20 3.3.1 Sub-grid Scale TIBL ................................................................................... 20 3.4 Inversion Break-up Fumigation ............................................................................. 21 3.4.1. Description of how CALMET computes mixing height and its relevance to properly modeling Inversion-breakup fumigation................................................ 22 3.5 Buoyant line plumes................................................................................................. 22 3.5.1 Entering Line sources into CALPUFF ...................................................... 24 3.5.2 Evaluation Studies....................................................................................... 27 3.6 Calm winds ............................................................................................................... 30 3.6.1 Sub hourly meteorological data and its usage in CALPUFF................... 31 3.6.2 User Options for treating Calms................................................................ 39 Table of Contents iii
Page 1: Generic Guidance and Optimum Model
Page 5 and 6: LIST OF FIGURES Page Figure 2-1. Fi
Page 7 and 8: SCOPE OF WORK AND BACKGROUND A.1 In
Page 9 and 10: 1. INTRODUCTION The CALPUFF modelin
Page 11 and 12: 2.3 Methodologies for Running CALME
Page 13 and 14: hourly profiles of wind speed, wind
Page 15 and 16: Table 2-2. Model Option Switches fo
Page 17 and 18: 2.3.4 Single Station Meteorology It
Page 19 and 20: Note that in no-observations (No-Ob
Page 21 and 22: Table 2-3. Tabulated List of Variou
Page 23 and 24: 3 RECOMMENDED MODEL OPTION SETTINGS
Page 25 and 26: Ridge 1 distance (km) Ridge 2 Figur
Page 27 and 28: Boundary Layer (TIBL) over the land
Page 29 and 30: � algorithms were designed to tre
Page 31 and 32: Figure 3-3. Shows a cross-section o
Page 33 and 34: 3.5.2 Evaluation Studies Figure 3-6
Page 35 and 36: AERMOD BLP 60 70 80 90 95 98 99 Cum
Page 37 and 38: In CALPUFF, by default, a calm peri
Page 39 and 40: UTM Y Coordinate (km) - WGS84 6474.
Page 41 and 42: It is important to note that no eva
Page 43 and 44: 6474.5 6474 6473.5 6473 6472.5 6472
Page 45 and 46: sigma v (CALPUFF calculated) Figure
Page 47 and 48: 4. DISCUSSION ON THE APPROPRIATE PR
Page 49 and 50: 4.3.1 Graphical Evaluation Graphica
Page 51 and 52: (uncorrelated). A line of best fit,
Page 53 and 54:
4.3.3 Other Meteorological Evaluati
Page 55 and 56:
Schulman, L.L. and J.S. Scire, 1980
Page 57 and 58:
Table A-1. An Explanation of the 7
Page 59 and 60:
Table A-1 An Explanation of the 7 C
Page 61 and 62:
Table A-2 Explanation and Recommend
Page 63 and 64:
Page 65 and 66:
Page 67 and 68:
Table A-4. Explanation and Recommen
Page 69:
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