Seasonality and Increasing Frequency of Greenland Glacial Earthquakes

Seasonality and Increasing Frequency of Greenland Glacial Earthquakes

Some glaciers and ice streams periodically lurch forward with sufficient force to generate emissions of elastic waves that are recorded on seismometers worldwide. Such glacial earthquakes on Greenland show a strong seasonality as well as a doubling of their rate of occurrence over the past 5 years....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Science (American Association for the Advancement of Science) 2006-03, Vol.311 (5768), p.1756-1758
Hauptverfasser: Ekström, Göran, Nettles, Meredith, Tsai, Victor C
Format: Artikel
Sprache:eng
Schlagworte:
Climate change
Earth sciences
Earth, ocean, space
Earthquakes
Earthquakes, seismology
Exact sciences and technology
Glacial landforms
Glaciers
Hydrogen
Ice
Ice sheets
Internal geophysics
Marine and continental quaternary
Mass
Molecules
Mountain glaciers
Outlet glaciers
Seasons
Surficial geology
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Some glaciers and ice streams periodically lurch forward with sufficient force to generate emissions of elastic waves that are recorded on seismometers worldwide. Such glacial earthquakes on Greenland show a strong seasonality as well as a doubling of their rate of occurrence over the past 5 years. These temporal patterns suggest a link to the hydrological cycle and are indicative of a dynamic glacial response to changing climate conditions.
ISSN:0036-8075
1095-9203
DOI:10.1126/science.1122112