Analysis on Dynamic Characteristics and Differences of Trace Hydrogen Concentration in Gases Emitted from Soil and Hot Spring Wells in Fault Zone of Northwestern Yunnan
HEI Hetang
ZHANG Yuan
LI Qing
CHU Jinxue
Abstract：Through the mathematical statistics of high-precision continuous observation data of hydrogen emitted from two soil sites and two hot spring wells in northwestern Yunnan for more than two years,the correlation fitting with meteorological elements,and the analysis of the periodic components of the observation data by using S-trans-form,the following understandings are obtained:The background value of hydrogen emitted from hot spring wells in the northwestern Yunnan is higher than that from soil;the observation data of the four measurement sites gener-ally show the characteristic of zigzag fluctuations,and the high value and low value of concentration are often in a large difference.Among them,both high and low abnormal values of hydrogen emitted from hot spring wells are present,while only high abnormal values of hydrogen emitted from soil are observed.Hydrogen emitted from hot spring wells in northwestern Yunnan has clear annual periodic components and slightly weaker semi-annual period-ic components,but it does not have semi-diurnal components.However,hydrogen emitted from the soil does not have clear annual periodic components,but shows relatively clear semi-diurnal periodic components.From the fit-ting results with meteorological elements,the change in hydrogen concentration emitted from hot spring wells shows a certain correlation with atmospheric temperature and pressure,while hydrogen emitted from the soil is ba-sically not related to both.Moreover,there is no correlation between the concentration of gas emitted from soil and hot spring wells and rainfall,which is quite different from previous research results.Therefore,it is believed that the correlation between trace hydrogen concentration in fault zones and meteorological elements still needs further analysis and research.
Keywords：Trace hydrogenSoilHot spring wellInfluencing factorsPeriodic components
Publication Date：2025-06-30
Online Publishing Date：2025-08-25(First online date of this platform, not the publication date of the document)
Pages：9( 7-15 )