2009 Volume 46 Issue 2 Pages 69-80
The objective of this study is to clarify the cooling effect by the ventilation after the restoration of the river in a inland city. The meteorological observations were carried out around the Cheong-Gye Stream in Seoul city in summer, 2006 (after the restoration process).
The main results are summarized as follows:
(1) When the wind from westward along the Cheong-Gye Stream is strong, the wind flows separating into the crossing avenues toward south and north. At the same time, it supplies decrease in temperature to the crossing avenues.
(2) The decrease in mean temperature in hourly is confirmed to reach around 60 m as max value from the restored zone. And it is supposed that the degree of decrease in temperature is about 0.3–0.4°C as the wind velocity increase 1 m/s.
Therefore it is confirmed that the decrease in temperature by the ventilation exists after the restoration of the Cheong-Gye Stream. Then it is considered that a large restoration of the inner-city river is able to be effective for urban development.
