{"title":"Ricker-wavelet-like Strain Waves in Shanxi Rift, North China: Atmospheric Loading Effect of the Squall Line","authors":"Xiaolin Yang, Jinling Yang","doi":"10.1134/s1028334x2360367x","DOIUrl":null,"url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Deciphering the physical origin of transient crustal deformation is a difficult challenge in the field of continuous borehole observations of crustal movement because the relevant influencing factors of the phenomenon are extremely multifarious. In the Shanxi Rift, squall lines are a frequently occurring mesoscale convective system. Consequently, strain transients are always observed by the borehole dilatometer network within the Shanxi Rift; however, a fundamental understanding of the transient phenomena induced by squall lines remains elusive. To address this challenge, we adopted a second-order Butterworth band-pass filters (0.5–2 h) to retrieve the borehole volumetric deformations excited by a “dry” squall line from September 21, 2017, that occurred in the Shanxi Rift. The elastic loading of Ricker-wavelet-shaped atmospheric waves induced by squall line, which can cause the main signature of transient deformation to adopt a highly similar shape; this pressure-induced deformation process can last approximately 148–164 min and has a maximum magnitude of approximately 19 nstrain. This work of signal processing clearly identifies the crustal transient induced by a squall line and provides new insights into the origin of some short-lasting crustal deformations in the Shanxi Rift and elsewhere.</p>","PeriodicalId":11352,"journal":{"name":"Doklady Earth Sciences","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Doklady Earth Sciences","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1134/s1028334x2360367x","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"GEOSCIENCES, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Deciphering the physical origin of transient crustal deformation is a difficult challenge in the field of continuous borehole observations of crustal movement because the relevant influencing factors of the phenomenon are extremely multifarious. In the Shanxi Rift, squall lines are a frequently occurring mesoscale convective system. Consequently, strain transients are always observed by the borehole dilatometer network within the Shanxi Rift; however, a fundamental understanding of the transient phenomena induced by squall lines remains elusive. To address this challenge, we adopted a second-order Butterworth band-pass filters (0.5–2 h) to retrieve the borehole volumetric deformations excited by a “dry” squall line from September 21, 2017, that occurred in the Shanxi Rift. The elastic loading of Ricker-wavelet-shaped atmospheric waves induced by squall line, which can cause the main signature of transient deformation to adopt a highly similar shape; this pressure-induced deformation process can last approximately 148–164 min and has a maximum magnitude of approximately 19 nstrain. This work of signal processing clearly identifies the crustal transient induced by a squall line and provides new insights into the origin of some short-lasting crustal deformations in the Shanxi Rift and elsewhere.
期刊介绍：
Doklady Earth Sciences is a journal that publishes new research in Earth science of great significance. Initially the journal was a forum of the Russian Academy of Science and published only best contributions from Russia. Now the journal welcomes submissions from any country in the English or Russian language. Every manuscript must be recommended by Russian or foreign members of the Russian Academy of Sciences.
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