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識別號0000091865
題名含水層冷熱水交換與預警模式之研究(1/2) Investigation of cool-hot water exchange mechanism and early-warning model of aquifers(1/2)
作者
ISBN9789860398045
出版項
臺北市 : , 10212
版本項初版
標題項
分類號354.3
文件編號10020211 146
編號(GPN/EBN)1010203380
委辦計畫編號MOEAWRA1020226
中文摘要為達到溫泉資源保育與永續經營之情況下,需要精確推估補注量、安全出水量或永續開發量等做詳細調查研究。且未來面對極端氣候產生雨量型態改變下,將影響溫泉水資源補注或溫度改變。本計畫建立學理研究(補注量推估模式、水量水溫模式)、溫泉營運管理(系統動力模式)、溫泉監測預警管理機制三大方向進行著手,建立溫泉資源永續管理及經營之理念
英文摘要Hot spring is a limited resource and energy. For sustainable management and utilization of hot spring resources, this project develops a cool-hot water exchange model. The model is calibrated and verified with the in-situ observations of hot spring temperature and water level. Thereby, the model is capable of estimating the interaction between precipitation, pumping, hot spring temperature and water level. Furthermore, the factors of hot spring early-warning system can be assessed and the rational hot spring usage can be estimated. In order to setup an accurate model, Jiaosi Hot Spring Area is chosen for demonstration mainly due to its dense deployment of hot spring monitoring wells, simple land use types, and long records of observations. In this project, two models, including the infiltration model (SWAT) and the groundwater heat transfer model (SHEMAT), are integrated as one cool-hot water exchange model. During the modeling process, SWAT simulates the infiltration with information such as land use, soil texture, and weather. The simulated infiltration along with the hydrogeological parameters and heat parameters serves as input in SHEMAT. BY inputting heat parameters including the location and quantity of heat source and the initial hot spring temperature, SHEMAT can carry out the calibration and simulation of hot spring temperature and water level. This project employes the established coo-hot water exchange model in the Jiaosi Hot Spring Area as a demonstration. By considering both the hot spring temperature and water level, the rational usage of hot spring is estimated for the reference of the I-lan government to re-examine the cap amount of Jiaosi Hot Spring. In addition, the risk factors, such as infiltration and pumping behaviors, of early warning for hot spring are taken into account. Several scenarios regarding legal cap amount and rational hot spring usage, and surface infiltration are designed to analyze the the impact of chose factors on water level, hot spring temperature, and geothermal gradient. The results show that the infiltration could affect the range of hot-cool exchange and geothermal gradient within the elevation of 0 to 20m. In addition, because the most of the pumping in Jiaosi take place within the elevation of 0 to -100m, the effect of pumping to geothermal is limited to this scope. Within the 6 zones, the pumping impacts zone 4 the most, and lead to insignificant effect in zone 5 and 6.
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