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6.3 Model Results vs. Observations (Manual Calibration)

After model simulation is completed (in the case of steady state modeling) or paused
(transient modeling), simulation head results (either for the steady-state flow field or the flow
field of the current time step) can be compared to available
observations by selecting the ‘Calibration’ button along the
left-side of the MAGNET Modeling Environment (see
Section 2.7). This will prompt the user to use a subregion
of the model for comparison (choose ‘OK’ in the prompt)
or the entire model domain (choose ‘Cancel’).

6.3.1 Loading Observational Data

Whether a subregion or the entire model domain is used for comparison, the 45 Degree Line Based
Calibration Chart will appear after a selection is made (see Figure 6-4). The next step is to select the data
source for observational data. Access the drop-down menu next to ‘Obs Data Source’ and select from one
of the following options:

• Table – enter observational data directly into the interface
• File – import observational data from a properly formatted .txt file
• IGW Server – import observational data from the IGW server
18

18 In the current version of MAGNET, this option is only available for the State of Michigan.
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