Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland

Evers, L. G.; Smets, P. S. M.; Assink, J. D.; Shani-Kadmiel, S.; Kondo, K.; Sugiyama, S.

Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland

Evers, L. G.; Smets, P. S. M.; Assink, J. D. et al.

Geophysical research letters, 2022, 49(8), e2021GL097113

Permalink : https://hdl.handle.net/2115/87040

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論文情報

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アクセス権	open access
URI	https://hdl.handle.net/2115/87040
タイトル	Long-Term Infrasonic Monitoring of Land and Marine-Terminating Glaciers in Greenland
著者	Evers, L. G. ; Smets, P. S. M. ; Assink, J. D. ; Shani-Kadmiel, S. ; Kondo, K. ; Sugiyama, S.
著者名 Evers, L. G.
著者名 Smets, P. S. M.
著者名 Assink, J. D.
著者名 Shani-Kadmiel, S.
著者名 Kondo, K.
e-Rad_Researcher 20421951 著者名 Sugiyama, S.
言語	英語
キーワード	infrasound
	glacier
	Greenland
	CTBT
	seismo-acoustics
発行日	2022-04-11
出版者	American Geophysical Union
収録物名	Geophysical research letters
巻(号)	49(8)
ページ	e2021GL097113
抄録	A period of 18 years of infrasonic recordings was analyzed from a microbarometer array (I18DK) in northwestern Greenland, near Qaanaaq. A huge number of infrasonic detections, over 700,000, have been made in I18DKs soundscape during the Arctic summers. Simultaneously identified were both calving events from marine-terminating glaciers and discharge related acoustics from a land-terminating glacier. This infrasonic activity is correlated to sea-surface and atmospheric temperature, respectively. Inter-yearly to daily variations were retrieved showing a strong variability in infrasonic detection rates and hence glacier activity. The highest number of infrasonic detections were found in recent years from the land-terminating glacier. The latter is supported by actual discharge measurements and partly by a discharge model. It is concluded that monitoring infrasound from glaciers can complement other techniques to remotely and passively get insights into glacier dynamics with high temporal and spatial resolution.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
PISSN	0094-8276
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1029/2021GL097113