Investigation of the sources of microseism noise in the Indian Ocean caused by movements between the ocean and the atmosphere.
Year: 2024
Type: conference-paper
Abstract: This study investigates microseism noise, a distinct sound occurring within 2 to 20 seconds, known as the loudest frequency in Earth's background noise. Focusing on the Indian Ocean, researchers analyzed the magnitude and direction of subtle movements using data from ten land-based stations across the region. Microseism characteristics were described using probability power spectral density, examining variations in vibration frequencies with Eigenvalue decomposition to understand three-dimensional vibration dispersion. Findings reveal that the Indian Ocean significantly contributes to global microseism, with certain stations displaying dual-frequency microseism periods of 2 to 5 seconds and 6 to 10 seconds. The study highlights that low-frequency seismic activity is largely influenced by the Southern Ocean. A comparative analysis showed a correlation between wave height and sound wave intensity across locations and time frames. Additionally, common wave types within the microseism band on Earth’s surface were reviewed, with a particular focus on Rayleigh waves over extended periods.
Authors: DHADI, SAI PRANEETH REDDY, KASIREDDY, MANIDEEP REDDY, BAGGARI, SAHASRA REDDY, KORA, TANISHKA
Institution: Vardhaman College of Engineering
Language: English
Topic: Seismic Waves and Analysis
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6911724981
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