标题：Heat flux in volcanic and geothermal areas: Methods, principles, applications and future directions

入藏号：WOS:001072917700001

中国科学院文献情报中心期刊分区：地球科学1区TOP（2023）

本校作者：王迎春

来源出版物：GONDWANA RESEARCH  卷: 122  页: 260-278

出版年：2023

第一地址：成都理工大学

关键词：Natural heat output；Volcanic and geothermal areas；Heat flux measurement methods；Soil temperature gradient；Soil CO2 flux

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摘要：The measurement and assessment of heat flux in volcanic and geothermal areas are crucial to studyingthe thermodynamic process, locating the activity of a geothermal field, evaluating geothermal resources,and assessing volcanic hazards. Several methods exist for conducting heat flux measurements, includingassessing the soil temperature gradient, thermal infrared remote sensing, ground calorimeter, and otherdirect calorimetric methods; as well as assessing soil CO2 flux, chloride inventory balance, eddy covariance, and other indirect calorimetric methods; and integrated methods from those mentioned above.Here, we review the history, basic principles, field operation procedures, suitability, and application ofthese heat flux measurement methods. The relationship between these direct and indirect calorimetricmethods and the conduction, convection, advection, and radiation heat transfer mechanisms near thesurface are also discussed. Characterization of the intensity of heat accumulation in volcanic and geothermal areas and its potential value for heat and mass transfer near the surface are also recommended. Wesuggest that the soil temperature gradient and soil CO2 flux methods are promising and representativeheat flux measurement methods after comparative analysis of their advantages and disadvantages, accuracy of results, relationship with the heat transfer mechanism, characterization of heat accumulationintensity, convenient operation, clear principle, wide range of characterization, and abundant applicationscenarios. With the increasing demand for these technologies, heat flux measurement methods can beapplied in unconventional volcanic and geothermal areas, such as polar regions, the moon, and largelakes. The results are beneficial to the targeting of geothermal resources, as well as revealing the mechanism of heat and mass transfer in the upper crust

文章链接地址:https://www.sciencedirect.com/science/article/pii/S1342937X22002623?via%3Dihub