Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of Korea
A traveling air pressure disturbance of several hPa over a short period (5–10 min) can generate tsunami-like waves in coastal areas owing to a multi-resonant mechanism. In recent years, pressure-forced meteotsunamis have been regularly reported over the Korean Peninsula. However, the Korean meteotsu...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Weather and Climate Extremes |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2212094722000457 |
| _version_ | 1817999708566585344 |
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| author | Myung-Seok Kim Seung-Buhm Woo Hyunmin Eom Sung Hyup You Hye Min Lee |
| author_facet | Myung-Seok Kim Seung-Buhm Woo Hyunmin Eom Sung Hyup You Hye Min Lee |
| author_sort | Myung-Seok Kim |
| collection | DOAJ |
| description | A traveling air pressure disturbance of several hPa over a short period (5–10 min) can generate tsunami-like waves in coastal areas owing to a multi-resonant mechanism. In recent years, pressure-forced meteotsunamis have been regularly reported over the Korean Peninsula. However, the Korean meteotsunami early warning system does not always provide sufficient lead time. The early warning system comprises two-segmented zones for tracking the intensity and propagation of air pressure disturbances via 89 meteorological stations in the precaution (offshore islands) and warning zones (coastline and inland areas). To address the lead time problem in the current observation-based monitoring system, we used an atmospheric model with a horizontal resolution of 1.5 km, the Korea Meteorological Administration's local data assimilation and prediction system (LDAPS). The ability of the LDAPS to detect air pressure disturbances was tested for a widespread and destructive meteotsunami event that occurred on March 4, 2018. The detection capability of significant air pressure disturbances (>1.5 hPa/10 min) was 67% in the precaution zone, and the propagation pattern (direction, speed, and spatial scale) was reasonably consistent with the monitoring results. Based on LDAPS prediction and the established observation-based monitoring system, monitoring operators can determine the potential meteotsunami risk from the open Yellow Sea beyond the observation system with sufficient lead time. This case study contributes to developing observation- and atmospheric model-based early warning systems for meteotsunami mitigation. An early warning of tsunamigenic disturbances in the Korean Peninsula is expected to be provided with the LDAPS-based modeling system using a high-resolution atmosphere-ocean coupled model shortly. |
| first_indexed | 2024-04-14T03:12:39Z |
| format | Article |
| id | doaj.art-9706ae19911a4e5c8958edee745b54d3 |
| institution | Directory Open Access Journal |
| issn | 2212-0947 |
| language | English |
| last_indexed | 2024-04-14T03:12:39Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Weather and Climate Extremes |
| spelling | doaj.art-9706ae19911a4e5c8958edee745b54d32022-12-22T02:15:33ZengElsevierWeather and Climate Extremes2212-09472022-09-0137100463Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of KoreaMyung-Seok Kim0Seung-Buhm Woo1Hyunmin Eom2Sung Hyup You3Hye Min Lee4Department of Ocean Sciences, Inha University, Incheon, 22212, Republic of KoreaDepartment of Ocean Sciences, Inha University, Incheon, 22212, Republic of Korea; Corresponding author.Marine Meteorology Division, Korea Meteorological Administration, Seoul, 07062, Republic of KoreaEarthquake and Volcano Policy Division, Korea Meteorological Administration, Seoul, 07062, Republic of KoreaDepartment of Ocean Sciences, Inha University, Incheon, 22212, Republic of KoreaA traveling air pressure disturbance of several hPa over a short period (5–10 min) can generate tsunami-like waves in coastal areas owing to a multi-resonant mechanism. In recent years, pressure-forced meteotsunamis have been regularly reported over the Korean Peninsula. However, the Korean meteotsunami early warning system does not always provide sufficient lead time. The early warning system comprises two-segmented zones for tracking the intensity and propagation of air pressure disturbances via 89 meteorological stations in the precaution (offshore islands) and warning zones (coastline and inland areas). To address the lead time problem in the current observation-based monitoring system, we used an atmospheric model with a horizontal resolution of 1.5 km, the Korea Meteorological Administration's local data assimilation and prediction system (LDAPS). The ability of the LDAPS to detect air pressure disturbances was tested for a widespread and destructive meteotsunami event that occurred on March 4, 2018. The detection capability of significant air pressure disturbances (>1.5 hPa/10 min) was 67% in the precaution zone, and the propagation pattern (direction, speed, and spatial scale) was reasonably consistent with the monitoring results. Based on LDAPS prediction and the established observation-based monitoring system, monitoring operators can determine the potential meteotsunami risk from the open Yellow Sea beyond the observation system with sufficient lead time. This case study contributes to developing observation- and atmospheric model-based early warning systems for meteotsunami mitigation. An early warning of tsunamigenic disturbances in the Korean Peninsula is expected to be provided with the LDAPS-based modeling system using a high-resolution atmosphere-ocean coupled model shortly.http://www.sciencedirect.com/science/article/pii/S2212094722000457Korean PeninsulaMeteotsunamiAir pressure disturbanceEarly warning systemObservation-based monitoring systemLead time problem |
| spellingShingle | Myung-Seok Kim Seung-Buhm Woo Hyunmin Eom Sung Hyup You Hye Min Lee Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of Korea Weather and Climate Extremes Korean Peninsula Meteotsunami Air pressure disturbance Early warning system Observation-based monitoring system Lead time problem |
| title | Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of Korea |
| title_full | Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of Korea |
| title_fullStr | Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of Korea |
| title_full_unstemmed | Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of Korea |
| title_short | Towards observation- and atmospheric model-based early warning systems for meteotsunami mitigation: A case study of Korea |
| title_sort | towards observation and atmospheric model based early warning systems for meteotsunami mitigation a case study of korea |
| topic | Korean Peninsula Meteotsunami Air pressure disturbance Early warning system Observation-based monitoring system Lead time problem |
| url | http://www.sciencedirect.com/science/article/pii/S2212094722000457 |
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