Volume 1 - The Atmospheric Studies Group at TRC
Volume 1 - The Atmospheric Studies Group at TRC Volume 1 - The Atmospheric Studies Group at TRC
Figure 4-13. Graphical depiction of MG,VG model performance results for CALPUFF configurations with and without turbulence advection. Zi1 – No Turb Advection, Maul-Carson Mixing Ht Zi1OW – No Turb Advection, Maul-Carson Mixing Ht , Obs Overwater Zi2 – No Turb Advection, Batchvarova-Gryning Mixing Ht Zi1OW – No Turb Advection, Batchvarova-Gryning Mixing Ht , Obs Overwater 800Zi1 –Turb Advection (800s), Maul-Carson Mixing Ht 800Zi1OW –Turb Advection (800s), Maul-Carson Mixing Ht , Obs Overwater 800Zi2 –Turb Advection (800s), Batchvarova-Gryning Mixing Ht 800Zi1OW –Turb Advection (800s), Batchvarova-Gryning Mixing Ht , Obs Overwater Final Report Vol.1 90
4.4 Recommendations A minimum σ v for overwater cells should be introduced in CALPUFF so that a value appropriate to overwater dispersion (e.g. 0.37 m/s) can be applied independently of the minimum used over land. The computed Lagrangian timescale approach for lateral dispersion, based in part on the SCIPUFF formulation, leads to unacceptably large overpredictions in CALPUFF and this draft option should be removed at this time. The COARE overwater flux module should be selected in place of the previous OCD-based model. The standard COARE option (no shallow water adjustment or wave model option) appears suitable to these coastal datasets, and there is little performance sensitivity among these options. The SEA.DAT format should allow wind and air temperature measurement heights to be different. The Batchvarova-Gryning convective mixing height option in CALMET was tested in the Oresund dataset and showed promising improvements in model performance. The Batchvarova-Gryning scheme should be tested further in a wide variety of operational simulations for possible general use as the mixing height default option in CALMET. Turbulence advection should be formulated for general use and implemented in the CALMET/CALPUFF system. A re-analysis of these evaluation datasets should be conducted once CALMET/CALPUFF Version 6 becomes available. The ability of this version to use time steps shorter than one hour will facilitate evaluations with the Gaviota and Carpinteria 30-minute datasets, and allow the full set of measurements to be used at all sites. Although the modeling system will use a one-hour time step operationally, evaluations at shorter time steps may allow a better integration of the tracer concentrations and meteorological measurements in both space and time. Final Report Vol.1 91
- Page 41 and 42: Datum: NAS-C (North American 1927)
- Page 43 and 44: Table 4-5 Source Characterization f
- Page 45 and 46: Table 4-6a Over-water Meteorologica
- Page 47 and 48: Geophysical Processing Gridded land
- Page 49 and 50: Table 4-7 Source Characterization f
- Page 51 and 52: tape format called GF-3. These data
- Page 53 and 54: . . Strait of Oresund 6230 6220 UTM
- Page 55 and 56: . . Strait of Oresund 6230 6220 UTM
- Page 57 and 58: Table 4-10 SEA.DAT Meteorological D
- Page 59 and 60: the numbers refer to ICOARE values,
- Page 61 and 62: that are simulated during the one-h
- Page 63 and 64: 4.3 Evaluation Results Cameron, Car
- Page 65 and 66: improve model performance relative
- Page 67 and 68: Figure 4-7. Graphical depiction of
- Page 69 and 70: Figure 4-8. Graphical depiction of
- Page 71 and 72: Figure 4-9. Graphical depiction of
- Page 73 and 74: Figure 4-10. Graphical depiction of
- Page 75 and 76: Table 4-15 Performance Statistics f
- Page 77 and 78: Performance of CALPUFF Configuratio
- Page 79 and 80: Table 4-16 Performance Statistics f
- Page 81 and 82: Table 4-16 (continued) Performance
- Page 83 and 84: Figure 4-12. Graphical depiction of
- Page 85 and 86: into CALPUFF, and the simulations a
- Page 87 and 88: Table 4-18 Oresund Results with Min
- Page 89 and 90: Table 4-20 Oresund Results with Min
- Page 91: Table 4-21 Performance Statistics f
- Page 95 and 96: SEA.DAT and OZONE.DAT files are pro
- Page 97 and 98: 36 34 32 30 Latitude 28 26 24 22 -1
- Page 99 and 100: WMO Number WBAN Number Station Iden
- Page 101 and 102: WMO Number WBAN Number Station Iden
- Page 103 and 104: WMO Number WBAN Number Station Iden
- Page 105 and 106: 36 72363 72340 34 72249 72248 72235
- Page 107 and 108: 36 34 32 41008 30 42035 42007 42040
- Page 109 and 110: 36 34 32 30 Latitude 28 26 24 22 -1
- Page 111 and 112: COOP State Station Name Table 5-4.
- Page 113 and 114: COOP State Station Name Table 5-4.
- Page 115 and 116: Table 5-4. (Concluded) Hourly NWS P
- Page 117 and 118: Table 5-5. Ozone Stations Station I
- Page 119 and 120: Table 5-5. (Continued) Ozone Statio
- Page 121 and 122: Table 5-5. (Continued) Ozone Statio
- Page 123 and 124: 36 317 339 361 383 405 427 449 471
- Page 125 and 126: - Figure 5-8. “Inputs/Outputs & R
- Page 127 and 128: 6. REFERENCES Batchvarova, E. and S
- Page 129 and 130: Maat, N., C. Kraan, and W.A. Oost,
- Page 131: APPENDIX: COMPILATION OF A HIGH RES
4.4 Recommend<strong>at</strong>ions<br />
A minimum σ v for overw<strong>at</strong>er cells should be introduced in CALPUFF so th<strong>at</strong> a value<br />
appropri<strong>at</strong>e to overw<strong>at</strong>er dispersion (e.g. 0.37 m/s) can be applied independently of<br />
the minimum used over land.<br />
<strong>The</strong> computed Lagrangian timescale approach for l<strong>at</strong>eral dispersion, based in part on<br />
the SCIPUFF formul<strong>at</strong>ion, leads to unacceptably large overpredictions in CALPUFF<br />
and this draft option should be removed <strong>at</strong> this time.<br />
<strong>The</strong> COARE overw<strong>at</strong>er flux module should be selected in place of the previous<br />
OCD-based model.<br />
<strong>The</strong> standard COARE option (no shallow w<strong>at</strong>er adjustment or wave model option)<br />
appears suitable to these coastal d<strong>at</strong>asets, and there is little performance sensitivity<br />
among these options.<br />
<strong>The</strong> SEA.DAT form<strong>at</strong> should allow wind and air temper<strong>at</strong>ure measurement heights to<br />
be different.<br />
<strong>The</strong> B<strong>at</strong>chvarova-Gryning convective mixing height option in CALMET was tested<br />
in the Oresund d<strong>at</strong>aset and showed promising improvements in model performance.<br />
<strong>The</strong> B<strong>at</strong>chvarova-Gryning scheme should be tested further in a wide variety of<br />
oper<strong>at</strong>ional simul<strong>at</strong>ions for possible general use as the mixing height default option in<br />
CALMET.<br />
Turbulence advection should be formul<strong>at</strong>ed for general use and implemented in the<br />
CALMET/CALPUFF system.<br />
A re-analysis of these evalu<strong>at</strong>ion d<strong>at</strong>asets should be conducted once<br />
CALMET/CALPUFF Version 6 becomes available. <strong>The</strong> ability of this version to use<br />
time steps shorter than one hour will facilit<strong>at</strong>e evalu<strong>at</strong>ions with the Gaviota and<br />
Carpinteria 30-minute d<strong>at</strong>asets, and allow the full set of measurements to be used <strong>at</strong><br />
all sites. Although the modeling system will use a one-hour time step oper<strong>at</strong>ionally,<br />
evalu<strong>at</strong>ions <strong>at</strong> shorter time steps may allow a better integr<strong>at</strong>ion of the tracer<br />
concentr<strong>at</strong>ions and meteorological measurements in both space and time.<br />
Final Report Vol.1 91
Change language