Winter model
[water vapor mixing ratio]
* Color contour interval is different for each model
Winter_max : 3.4km
Winter_min : 2.2km
Winter_0: 2.2km
Result of Qvapor : The larger the mixing ratio, the greater the vertical size of the heat island.
[Temperature]
* Comparison upper atmosphere temperature with temperature 2 meters above surface
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Temperature 2 meters above surface (Timeseries.ncl)
< Limit >
Unable to input temperature sounding for winter into the model because it was not known how to input it. Therefore, even if the surface temperature is adjusted, the results are not properly derived because the upper atmosphere sounding is not properly reflected. So, Timeseries.ncl was not included in the analysis.
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TC - upper atmosphere
Winter_max
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Winter_min
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Winter_0
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- Winter_max : From 07:00 , a slight temperature gradient occurs, and disappears around 08:30 in all three cases.
- Winter_min : From 07:00 , a slight temperature gradient occurs, and disappears around 08:00.
- Winter_0 : From 07:00 , a slight temperature gradient occurs, and disappears around 08:30.
< Limit >
Temperature sounding of upper atmosphere does not fit winter. Despite these errors, we attempted to interpret them because the variables we manipulated (surface temperature, water vapor mixing ratio) resulted in different results.
Because there is a limit in the case of Winter, it was interpreted by applying the summer model analysis method. But clearly there is an error due to limitations.
[U-wind]
The stronger the heat island phenomenon, the higher the rising air current will reach, and the vertical scale of heat island will be increased accordingly. This causes the u-wind to be larger and wider. That is, the size of the urban heat island increases.
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Winter_max(07:00)
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Winter_min(07:00)
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Winter_0(07:00)