Vertical Dimensions of the Model Domains Sample Clauses

Vertical Dimensions of the Model Domains. For the WRF/MM5 meteorological modelling the vertical atmosphere was resolved to 38 layers, with thinner layers in the planetary boundary layer. The layer configuration was selected to capture the important diurnal variations in the boundary layer while also having layers in the upper troposphere to try and resolve convective activity. The vertical structure of the models is primarily defined by the vertical grid used in the MM5/WRF modelling. The MM5/WRF model employed a terrain following coordinate system (so-called sigma coordinate system) defined by the pressure levels at surface and top (usually using the standard values of 1000 and 50 mb respectively). The vertical grid of the meteorological models used 38 vertical layers that extend from the surface to the 50 mb pressure level (approximately 23 km height). More than half of the vertical levels (about 20) are situated at the lower troposphere (below approximately 1750 m height) within the Planetary Boundary Layer (PBL) where most of the atmospheric processes occur that lead to elevated pollution levels in the HK and PRD regions. 19 grid surfaces were defined from 0 to 1,500 m, 11 grid surfaces were defined from 1,500 to 8,000 m, and 8 grid surfaces were defined from 8,000 to 20,000 m. There are a total of 38 layers, or 39 grid surfaces. The details of the 38 vertical layers adopted in the MM5/WRF models and how they were collapsed to the 26 layers used in the CMAQ/CAMx CTMs was shown previously in Table 3-2.
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  • Buildings and Structures 1. Repair or retrofit of buildings less than 45 years old. 2. Removal of water by physical or mechanical means. 3. Installation of exterior security features and early warning devices on existing light poles or other permanent utilities.

  • Underground Utilities Any required ground digging or subsurface work shall be done in accordance with Chapter 556, Florida Statutes. It shall be the responsibility of CONTRACTOR to have all underground utilities located before any work begins (Sunshine State One Call ▇-▇▇▇-▇▇▇-▇▇▇▇). The repairs of any damaged underground utilities as a result of the work being performed by CONTRACTOR shall be the responsibility of CONTRACTOR. The proper utility company shall be contacted immediately to expedite the repairs, if damage has occurred. CONTRACTOR will notify the COUNTY and provide a written explanation of the incident within two (2) days of the damage to any underground utilities.

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