|
KMID : 1024520080170080907
|
|
Journal of the Environmental Sciences
2008 Volume.17 No. 8 p.907 ~ p.918
|
|
|
On the Characteristics of Globe Temperature Variation Observed at Downtown in Summer Season
|
|
Park Jong-Kil
Jung Woo-Sik
Kim Seok-Cheol
Park Gil-Un
|
|
|
Abstract
|
|
|
|
In order to monitor the impact of high temperature which is seen frequently with climate change, we investigated the monthly change in globe temperature, air temperature, mean radiant temperature and effective radiant heat flow, because the four well reflect thermal radiation from bio-meteorological aspect. Both globe temperature and air temperature showed an increasing trend every month. Compared to air temperature, globe temperature had a wider range of temperature change and was more influenced by meteorological element such as precipitation. Diurnal trends of air temperature, globe temperature and the difference between their temperature had the lowest value before the sunrise and the highest around LST, showing the typical diurnal trends. Globe temperature and the difference between their temperature had a sharp increase around LST, maintained high value until 1700 LST and then reclined, though varied by month. The difference between globe temperature and air temperature was highly dependent on the amount of precipitation and clouds. The duration in which globe temperature was higher than air temperature was the lowest in July. Therefore the amount of precipitation was the most affecting, followed by the amount of clouds and wind. In order to find out the diurnal trends of temperature in city center and city outskirts, we assumed the roof of a concrete build ing as a city center, and the grass-covered observatory of the Gimhae International Airport as city outskirts. The diurnal trends of temperature in the two sites showed a strong correlation. The highest and lowest temperature also had the same trend.
|
|
|
KEYWORD
|
|
|
High temperature, Climate change, Globe temperature, Mean radiant temperature, Effective radiant heat flow, The diurnal trends of temperature
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|