Work

Detection of Landslide‐Generated Tsunami by Shipborne GNSS Precise Point Positioning

Year: 2025

Type: article

Abstract: Precise point positioning (PPP) of ships using Global Navigation Satellite System (GNSS) data reveals the precise movements of marine vessels. This method may quantify anomalies in sea surface height with implications for oceanographic monitoring, exploration, and tsunami warning. The GNSS PPP data from the R/V Sikuliaq, a research ship of the University of Alaska Fairbanks, were processed to detect a small local tsunami generated by the Lowell Point landslide, which occurred near Seward, Alaska, on 8 May 2022 (UTC). The GNSS receiver aboard the R/V Sikuliaq recorded the waves generated by the landslide, with a maximum wave amplitude of 6 cm and wave periods between 40 and 50 s. These results are consistent with simulations of the landslide event.

Source: Geophysical Research Letters

DOI: 10.1029/2024gl112472

Authors: Adam E. Manaster, Anne F. Sheehan, Dara E. Goldberg, Katherine R. Barnhart, Ethan H. Roth

Institutions: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Geologic Hazards Science Center, University of Alaska Fairbanks

Language: English

Topic: GNSS positioning and interference

Subfield: Aerospace Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,190

Funders: National Science Foundation, University of Colorado Boulder