SEASONAL CHANGE OF GROUNDWATER FLOW AND ITS EFFECT ON TEMPERATURE DISTRIBUTION IN SENDAI PLAIN
A heat transport model that accounts the effects of groundwater flow was developed to investigate the seasonal changes of temperature distribution patterns and heat flux in Sendai plain. One hour groundwater temperatures up to the depth of 50-60 m and water levels at different aquifer levels were measured in three observation wells. Three dimensional groundwater flows were simulated by means of the MODFLOW numerical code. Observed and simulated water levels were matched with the Domenico and Palciauskass analytical solution for the simultaneous transfer of heat and groundwater to obtain the corresponding temperature distribution. These results were interpreted from the observed temperature records at different aquifer levels. 47.5 mW/m2 of maximum vertical heat flux was estimated near to the Nanakita river and it also noticed about 17% heat flux change during two extreme precipitation events of simulation time.
groundwater heat fluz seasonal change Sendai plain MODFLOW
Luminda Gunawardhana Kazama So Sawamoto Masaki
Graduate School of Environmental Studies, Tohoku University, 6-6-06, Aoba yama, Sendai,980-8579, Jap Department of Civil Engineering, Tohoku University, 6-6-06, Aoba yama, Sendai, 980-8579, Japan
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
193-198
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）