气候变化领域集成服务门户(CCPortal): Topographic Amplification of Crustal Subsidence by the Rainwater Load of the 2019 Typhoon Hagibis in Japan

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DOI	10.1029/2021JB021845
	Topographic Amplification of Crustal Subsidence by the Rainwater Load of the 2019 Typhoon Hagibis in Japan
	Zhan W.; Heki K.; Arief S.; Yoshida M.
发表日期	2021
ISSN	21699313
卷号	126 期号:6
英文摘要	The super typhoon Hagibis traveled northeastward through eastern Honshu, Japan, causing disastrous heavy rainfalls along its path on October 11 and 12, 2019. We performed a comprehensive space geodetic study of water brought by this typhoon using a dense network of Global Navigation Satellite System (GNSS) receivers in Japan. First, we studied the time evolution of altitude-corrected precipitable water vapor field and compare the movement of water vapor centroid with the rain distribution from radar rain gauge analyzed precipitation. The total amount of water vapor derived by spatially integrating precipitable water vapor on land remained steady at ∼20 Gt. The total precipitation by this typhoon was ∼92, and ∼33 Gt of it fell onto the land area of eastern Honshu. Next, we studied crustal subsidence caused by the typhoon rainwater as surface load. The GNSS stations located under the typhoon path temporarily subsided 1–2 cm on the landfall day and the subsidence mostly recovered on the next day. Using the vertical crustal movement data, we estimated the distribution of surface water in eastern Honshu assuming the layered spherical earth. The amount of the surface load on October 12 was ∼71 Gt, which significantly exceeds the cumulative rainfall on land. We consider that the excess subsidence largely originates from the selective deployment of GNSS stations in the concave topography, for example, along valleys and within basins, in the mountainous Japanese Islands. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	crustal subsidence; GNSS; precipitation; PWV; typhoon Hagibis
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187085
作者单位	The First Monitoring and Application Center, China Earthquake Administration, Tianjin, China; Department of Earth and Planetary Sciences, Hokkaido University, Sapporo, Japan; Geospatial Information Authority, Cibinong, Indonesia; Kiso-Jiban Consultants Co. Ltd, Tokyo, Japan
推荐引用方式 GB/T 7714	Zhan W.,Heki K.,Arief S.,et al. Topographic Amplification of Crustal Subsidence by the Rainwater Load of the 2019 Typhoon Hagibis in Japan[J],2021,126(6).
APA	Zhan W.,Heki K.,Arief S.,&Yoshida M..(2021).Topographic Amplification of Crustal Subsidence by the Rainwater Load of the 2019 Typhoon Hagibis in Japan.Journal of Geophysical Research: Solid Earth,126(6).
MLA	Zhan W.,et al."Topographic Amplification of Crustal Subsidence by the Rainwater Load of the 2019 Typhoon Hagibis in Japan".Journal of Geophysical Research: Solid Earth 126.6(2021).