X-Raying Neutral Density Disturbances in the Mesosphere and Lower Thermosphere induced by the 2022 Hunga-Tonga Volcano Eruption-Explosion
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914970500857856 |
|---|---|
| author | Katsuda, Satoru Shinagawa, Hiroyuki Fujiwara, Hitoshi Jin, Hidekatsu Miyoshi, Yasunobu Miyoshi, Yoshizumi Motizuki, Yuko Nakajima, Motoki Nakazawa, Kazuhiro Nobukawa, Kumiko K. Otsuka, Yuichi Shinbori, Atsushi Sori, Takuya Tao, Chihiro Tashiro, Makoto S. Wada, Yuuki Yamawaki, Takaya |
| author_facet | Katsuda, Satoru Shinagawa, Hiroyuki Fujiwara, Hitoshi Jin, Hidekatsu Miyoshi, Yasunobu Miyoshi, Yoshizumi Motizuki, Yuko Nakajima, Motoki Nakazawa, Kazuhiro Nobukawa, Kumiko K. Otsuka, Yuichi Shinbori, Atsushi Sori, Takuya Tao, Chihiro Tashiro, Makoto S. Wada, Yuuki Yamawaki, Takaya |
| contents | We present X-ray observations of the upper atmospheric density disturbance caused by the explosive eruption of the Hunga Tonga-Hunga Ha'apai (HTHH) volcano on 15 January 2022. From 14 January to 16 January, the Chinese X-ray astronomy satellite, Insight-HXMT, was observing the supernova remnant Cassiopeia A. The X-ray data obtained during Earth's atmospheric occultations allowed us to measure neutral densities in the altitude range of ~90-150 km. The density profiles above 110 km altitude obtained before the major eruption are in reasonable agreement with expectations by both GAIA and NRLMSIS 2.0 models. In contrast, after the HTHH eruption, a severe density depletion was found up to ~1,000 km away from the epicenter, and a relatively weak depletion extending up to ~7,000 km for over 8 hr after the eruption. In addition, density profiles showed wavy structures with a typical length scale of either ~20 km (vertical) or ~1,000 km (horizontal). This may be caused by Lamb waves or gravity waves triggered by the volcanic eruption. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_09410 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | X-Raying Neutral Density Disturbances in the Mesosphere and Lower Thermosphere induced by the 2022 Hunga-Tonga Volcano Eruption-Explosion Katsuda, Satoru Shinagawa, Hiroyuki Fujiwara, Hitoshi Jin, Hidekatsu Miyoshi, Yasunobu Miyoshi, Yoshizumi Motizuki, Yuko Nakajima, Motoki Nakazawa, Kazuhiro Nobukawa, Kumiko K. Otsuka, Yuichi Shinbori, Atsushi Sori, Takuya Tao, Chihiro Tashiro, Makoto S. Wada, Yuuki Yamawaki, Takaya Geophysics Earth and Planetary Astrophysics Atmospheric and Oceanic Physics We present X-ray observations of the upper atmospheric density disturbance caused by the explosive eruption of the Hunga Tonga-Hunga Ha'apai (HTHH) volcano on 15 January 2022. From 14 January to 16 January, the Chinese X-ray astronomy satellite, Insight-HXMT, was observing the supernova remnant Cassiopeia A. The X-ray data obtained during Earth's atmospheric occultations allowed us to measure neutral densities in the altitude range of ~90-150 km. The density profiles above 110 km altitude obtained before the major eruption are in reasonable agreement with expectations by both GAIA and NRLMSIS 2.0 models. In contrast, after the HTHH eruption, a severe density depletion was found up to ~1,000 km away from the epicenter, and a relatively weak depletion extending up to ~7,000 km for over 8 hr after the eruption. In addition, density profiles showed wavy structures with a typical length scale of either ~20 km (vertical) or ~1,000 km (horizontal). This may be caused by Lamb waves or gravity waves triggered by the volcanic eruption. |
| title | X-Raying Neutral Density Disturbances in the Mesosphere and Lower Thermosphere induced by the 2022 Hunga-Tonga Volcano Eruption-Explosion |
| topic | Geophysics Earth and Planetary Astrophysics Atmospheric and Oceanic Physics |
| url | https://arxiv.org/abs/2410.09410 |