基于加权信息量法的福州地区地热资源模型构建  

Construction of model geothermal resource in Fuzhou area based on weighted information method

作　　者：周侯伯 肖桂荣[1] 肖爱芳[2] ZHOU Houbo;XIAO Guirong;XIAO Aifang(The Academy of Digital China(Fujian),Fuzhou University,Fuzhou,Fujian 350108,China;College of Zijin Mining,Fuzhou University,Fuzhou,Fujian 350108,China)

机构地区：[1]福州大学数字中国研究院(福建),福建福州350108 [2]福州大学紫金矿业学院,福建福州350108

出　　处：《福州大学学报（自然科学版）》2021年第6期863-871,共9页Journal of Fuzhou University(Natural Science Edition)

基　　金：中央引导地方科技发展专项资助项目(2020L3005);中国科学院战略性先导科技专项课题(XDA23100504)。

摘　　要：以福州地区为研究区,采用新提出的城市热异常越级融合提取算法(UTALFE)消除城市热岛获得地表温度、区分早期与晚期燕山期侵入岩作为改进,融合地质背景、地理背景、地球物理3类数据共7个因子进行建模,并结合地热温标对圈定的地热潜力区进行验证.模型评价结果表明,加权信息量模型预测能力优于信息量模型.福州地区高地热潜力地区的分布与主要水系的分布存在明显空间相关性,市区、县区附近区域的地热潜力均较高,未来可以考虑在闽侯光明、闽清汤兜两处开展干热岩远景勘探与研究.Taking Fuzhou area as the study area,use the newly proposed the algorithm of urban thermal anomaly leapfrog fusion extraction(UTALFE)to eliminate urban heat islands to obtain surface temperature and distinguish the early and late Yanshanian intrusive rocks as an improvement.A total of 7 factors including geological background,geographical back ground and geophysical data were combined for modeling.Then validate the delineated geothermal potential area in combination with the geothermometers.The model evaluation results showed that the prediction ability of weighted information model was better than that of information model.The distribution of high geothermal potential area in Fuzhou had obvious spatial correlation with the distribution of main water systems.The geothermal potential of the areas near the urban areas and counties was relatively high.In the future,it can be considered to carry out prospective exploration and research of hot dry rock in Minhou Guangming and Minqing Tangdou.

关 键 词：地热资源 加权信息量模型 UTALFE算法 地热温标 干热岩 福州地区 

分 类 号：P314[天文地球—固体地球物理学] P208[天文地球—地球物理学]