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• ​Summer

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 When looking at the Qvapor results, the maximum mixing ratio model shows a large vertical scale of the rising air stream, which is the beginning of the heat island, and appears rapidly. Compared to the minimum mixing ratio model & 0 mixing ratio model, we can see that the developed upward airflow spreads into the u-vector direction faster.

 

 Then when looking at the Tc results, we can confirm that the upward airflow developed through the change in the gradient of the temperature of the maximum mixing ratio model was trapped in the heat island and convected relatively quickly compared to min and 0 models.
 

 Through this, the maximum mixing ratio model can be analyzed from timeseries results. Although the temperature change of the model with time is large, we can see that temperature is maintained high temperature to the last time zone due to the heat island phenomenon compared to the other two models (min & 0).

 This can be interpreted that the urban heat island phenomenon in the maximum mixing ratio model is strongest and lasts the longest.

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• Winter

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In the case of Winter models, the phenomenon could not be identified in the model as distinctly as summer. The reason for this is that the mixing ratio difference between max, min, and 0 models in winter was small by 1-2 degrees, and the temperature profile of the winter atmosphere was not entered properly.

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However, if we overcome these limitations and enter the exact winter atmosphere's temperature profile into the model, we can assume that the larger the mixing ratio is, the stronger the urban heat island phenomenon, based on the summer model, even in winter.