AbstractGeothermal energy is an increasingly important component of green energy in the globe. A prere'/> Geothermal Anomaly Mapping Using Landsat ETM+ Data in Ilan Plain, Northeastern Taiwan
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首页> 外文期刊>Pure and Applied Geophysics >Geothermal Anomaly Mapping Using Landsat ETM+ Data in Ilan Plain, Northeastern Taiwan
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Geothermal Anomaly Mapping Using Landsat ETM+ Data in Ilan Plain, Northeastern Taiwan

机译：使用Landsat ETM +数据在台湾东北部伊兰普林+数据的地热异常映射

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AbstractGeothermal energy is an increasingly important component of green energy in the globe. A prerequisite for geothermal energy development is to acquire the local and regional geothermal prospects. Existing geophysical methods of estimating the geothermal potential are usually limited to the scope of prospecting because of the operation cost and site reachability in the field. Thus, explorations in a large-scale area such as the surface temperature and the thermal anomaly primarily rely on satellite thermal infrared imagery. This study aims to apply and integrate thermal infrared (TIR) remote sensing technology with existing geophysical methods for the geothermal exploration in Taiwan. Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) imagery is used to retrieve the land surface temperature (LST) in Ilan plain. Accuracy assessment of satellite-derived LST is conducted by comparing with the air temperature data from 11 permanent meteorological stations. The correlation coefficient of linear regression between air temperature and LST retrieval is 0.76. The MODIS LST product is used for the cross validation of Landsat derived LSTs. Furthermore, Landsat ETM+ multi-temporal brightness temperature imagery for the verification of the LST anomaly results were performed. LST Results indicate that thermal anomaly areas appear correlating with the development of faulted structure. Selected geothermal anomaly areas are validated in detail by field investigation of hot springs and geothermal drillings. It implies that occurrences of hot springs and geothermal drillings are in good spatial agreement with anomaly areas. In addition, the significant low-resistivity zones observed in the resistivity sections are echoed with the LST profiles when compared with in the Chingshui geothermal field. Despite limited to detecting the surficial and the shallow buried geothermal resources,
机译：<！[cdata [ <标题>抽象 ara id =“par1”>地热能量是绿色能量越来越重要的组成部分全球。地热能源发展的先决条件是获得当地和区域地热前景。估计地热势的现有地球物理方法通常限于勘探的范围，因为该领域的运营成本和现场可达性。因此，在大型区域（如表面温度和所述热异常）中的探索主要依赖于卫星热红外图像。本研究旨在将热红外（TIR）遥感技术与台湾地热勘探的现有地球物理方法应用。 Landsat 7（L7）增强专题映射器加（ETM +）图像用于检索ILAN平原的陆地温度（LST）。通过与来自11个永久气象站的空气温度数据进行比较，进行卫星衍生LST的准确性评估。空气温度和LST检索之间的线性回归的相关系数为0.76。 MODIS LST产品用于Landsat衍生LST的交叉验证。此外，对LADSAT ETM +多时间亮度温度成像进行了用于验证LST异常结果。 LST结果表明，热异常区域出现与断层结构的发展相关性。选择的地热异常区域是通过热弹簧和地热钻孔的现场调查验证的。它意味着热弹簧和地热钻孔的发生良好的空间协议与异常区域。另外，在电阻率部分观察到的显着的低电阻率区与在芯辉地热场相比时与LST型材回荡。尽管有限地检测到表格和浅埋地热资源，

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