Table of Contents - The Atmospheric Studies Group at TRC

Section 8: CALMET Model Files
records for each time period are provided for each grid cell in the extracted subdomain. Sea level
pressure, rainfall, and snow cover are provided for the surface, and pressure, elevation, temperature, wind
speed, and wind direction are always provided at each vertical level. Other variables that may be
provided at each vertical level include the vertical velocity, relative humidity, vapor mixing ratio, cloud
mixing ratio, rain mixing ratio, ice mixing ratio, and grouped mixing ratio.
The 3D.DAT file is exactly similar to the MM5.DAT file with a minor exception. In the 3D.DAT file, the
user can add comments to the file header. These comments are particularly useful in tracing the history of
the file.
A sample 3D.DAT file is presented in Table 8-22, and a description of each record is presented in Table
8-23. Please note that the MM5.DAT file is similar to the file described in Tables 8-22 and 8-23.
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