Data underlying the publication: Long-term infrasonic monitoring of land and marine-terminating glaciers in Greenland

doi: 10.4121/19390835.v1
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doi: 10.4121/19390835
Datacite citation style:
Läslo Evers (2022): Data underlying the publication: Long-term infrasonic monitoring of land and marine-terminating glaciers in Greenland. Version 1. 4TU.ResearchData. dataset.
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Qaanaaq (Greenland)
lat (N): 77.47556
lon (E): -69.28776
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Number of infrasonic detections per day for 2004-2021 for four glaciers surrounding Qaanaaq (Greenland). The observations, data processing and interpretation are described in Evers et al., Geophysical Research Letters, 2022.
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.
  • 2022-04-01 first online, published, posted
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  • VIDI project from the Netherlands Organization for Scientific Research (NWO), project 864.14.005
  • Probing the changing deep oceans and upper atmosphere with seismo-acoustic waves (grant code 864.14.005) [more info...] Dutch Research Council
Royal Netherlands Meteorological Institute (KNMI)
TU Delft, Faculty of Civil Engineering and Geosiences, Department of Geoscience & Engineering


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