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DOI | 10.1002/2018GL077124 |
Local Infrasound Variability Related to In Situ Atmospheric Observation | |
Kim, Keehoon1; Rodgers, Arthur1; Seastrand, Douglas2 | |
2018-04-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:7页码:2954-2962 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Local infrasound is widely used to constrain source parameters of near-surface events (e.g., chemical explosions and volcanic eruptions). While atmospheric conditions are critical to infrasound propagation and source parameter inversion, local atmospheric variability is often ignored by assuming homogeneous atmospheres, and their impact on the source inversion uncertainty has never been accounted for due to the lack of quantitative understanding of infrasound variability. We investigate atmospheric impacts on local infrasound propagation by repeated explosion experiments with a dense acoustic network and in situ atmospheric measurement. We perform full 3-D waveform simulations with local atmospheric data and numerical weather forecast model to quantify atmosphere-dependent infrasound variability and address the advantage and restriction of local weather data/numerical weather model for sound propagation simulation. Numerical simulations with stochastic atmosphere models also showed nonnegligible influence of atmospheric heterogeneity on infrasound amplitude, suggesting an important role of local turbulence. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435743400010 |
WOS关键词 | SOUND-PROPAGATION ; TURBULENT ATMOSPHERE ; ACOUSTIC PROPAGATION ; SAKURAJIMA VOLCANO ; SIMULATION ; MODEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27495 |
专题 | 气候变化 |
作者单位 | 1.Lawrence Livermore Natl Lab, Atmosphere Earth & Energy Div, Livermore, CA 94550 USA; 2.Mission Support & Test Serv LLC, Las Vegas, NV USA |
推荐引用方式 GB/T 7714 | Kim, Keehoon,Rodgers, Arthur,Seastrand, Douglas. Local Infrasound Variability Related to In Situ Atmospheric Observation[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(7):2954-2962. |
APA | Kim, Keehoon,Rodgers, Arthur,&Seastrand, Douglas.(2018).Local Infrasound Variability Related to In Situ Atmospheric Observation.GEOPHYSICAL RESEARCH LETTERS,45(7),2954-2962. |
MLA | Kim, Keehoon,et al."Local Infrasound Variability Related to In Situ Atmospheric Observation".GEOPHYSICAL RESEARCH LETTERS 45.7(2018):2954-2962. |
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