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Texas Air Quality Modeling - Domains

Map and parameters of Texas ozone air quality modeling domains.

Map Projection Parameters

The Texas ozone modeling domains are defined on the Lambert Conformal Conic map projection (same as National RPO domain):

First True Latitude (Alpha): 33°N
Second True Latitude (Beta): 45°N
Central Longitude (Gamma): 97°W
Projection Origin: (97°W, 40°N)
Spheroid: Perfect Sphere, Radius = 6370 km

Modeling Domain Paremeters

  • CAMx Domains
  • WRF Domains
Horizontal Grid Structure
Domain Range (km) Number of Cells Cell Size (km) Short Name
Easting Northing Easting Northing Easting Northing
National RPO Domain (-2736,2592) (-2088,1944) 148 112 36 36 rpo_36km
Texas 12km Domain (-984,804) (-1632,-312) 149 110 12 12 tx_12km
Texas 4km Domain (-328,436) (-1516,-644) 191 218 4 4 tx_4km
Vertical Layer Structure
Corresponding
WRF Layer
Layer Top
(m AGL)
CAMx
Layer
Layer Center
(m AGL)
Thickness
(m)
3815179.12813637.93082.5
3612096.62710631.62930.0
329166.6268063.82205.7
296960.9256398.41125.0
275835.9245367.0937.9
254898.0234502.2791.6
234106.4223739.9733.0
213373.5213199.9347.2
203026.3202858.3335.9
192690.4192528.3324.3
182366.1182234.7262.8
172103.3171975.2256.2
161847.2161722.2249.9
151597.3151475.3243.9
141353.4141281.6143.6
131209.8131139.0141.6
121068.212998.3139.7
11928.511859.5137.8
10790.610745.290.9
9699.79654.790.1
8609.78565.089.3
7520.37476.188.5
6431.86387.987.8
5344.05300.587.1
4256.94213.886.3
3170.63127.885.6
285.0259.451.0
133.9117.033.9
CAMx LayersCAMx Layers (Lower 21)
AGL - Above Ground Level.