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Physical Sciences › Earth and Planetary Sciences › Geophysics
2022 Tonga Volcanic Eruption Induced Global Propagation of Ionospheric Disturbances via Lamb Waves
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Paper Summary
Conflicts of Interest
Identified Weaknesses
Rating Explanation
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Paper Summary
Paperzilla title
Tonga's volcanic eruption sent ionospheric waves circling the globe - like a bath toy on steroids!
The 2022 Tonga volcanic eruption triggered ionospheric disturbances that propagated globally for at least four days, traveling around the globe multiple times. The disturbances exhibited characteristics consistent with Lamb waves, suggesting their significant role in the global propagation of the eruption's effects.
Possible Conflicts of Interest
None identified
Identified Weaknesses
Over-reliance on a single data source
The study relies heavily on a single data source (GNSS TEC data) without sufficient validation from other independent measurements. This raises concerns about the robustness of the findings, as potential biases or limitations in the GNSS data could affect the interpretation of the results.
Lack of thorough consideration of alternative mechanisms
The study claims that the observed ionospheric disturbances are primarily caused by Lamb waves, but it doesn't adequately rule out other possible mechanisms, such as tsunami-generated gravity waves. A more comprehensive analysis considering various wave modes and their interactions is needed to confidently attribute the observed effects to Lamb waves.
Insufficient analysis of background disturbances
The paper mentions some background ionospheric disturbances potentially related to a geomagnetic storm and stratospheric polar vortex. However, it fails to quantify the impact of these background disturbances on the observed eruption-induced fluctuations. This makes it challenging to isolate the effects specifically caused by the Tonga eruption and could lead to overestimation of the eruption's impact.
Weak evidence for returning waves
The analysis of the returning waves is somewhat superficial, and the paper doesn't provide strong evidence supporting the claim that the waves indeed returned to Tonga. A more detailed investigation of the wave propagation patterns and characteristics is needed to confirm this aspect.
Rating Explanation
The paper presents a unique and valuable analysis of the global ionospheric impacts of the Tonga eruption. The findings, especially regarding Lamb waves, are interesting and potentially significant. However, several methodological limitations, such as over-reliance on a single data source and insufficient consideration of other contributing factors, slightly lower the rating.
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Original Title:
2022 Tonga Volcanic Eruption Induced Global Propagation of Ionospheric Disturbances via Lamb Waves
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July 14, 2025 at 06:50 AM
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