Episodic propagation of a rift on the Amery Ice Shelf, East Antarctica

Details Episodic propagation of a rift on the Amery Ice Shelf, East Antarctica Episodic propagation of a rift on the Amery Ice Shelf, East Antarctica

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3206502b&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 6, CiteID L06502

Mathematics

Logic

4

Hydrology: Glaciology (0736, 0776, 1863), Global Change: Cryospheric Change (0776), Global Change: Impacts Of Global Change (1225)

Scientific paper

We investigate ice shelf rift propagation using a combination of GPS and seismic measurements near the tip of an active rift in the Amery Ice Shelf. These measurements reveal that propagation occurs in episodic bursts, which were identified based on swarms of seismicity accompanied by rapid rift widening. The bursts last approximately 4 hours and are separated by 10-24 days. In between bursts, the rift widens at a rate comparable to that of ice shelf spreading. Comparison of automatic weather station data and tidal amplitudes show that the propagation bursts are not directly triggered by winds or tides, suggesting that rift propagation is driven by the background glaciological stress in the ice shelf. We show that the ice debris that partly fills the rift may play a role in controlling the rate of propagation.

Affiliated with

Also associated with

No associations

Rating

Episodic propagation of a rift on the Amery Ice Shelf, East Antarctica does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Episodic propagation of a rift on the Amery Ice Shelf, East Antarctica, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Episodic propagation of a rift on the Amery Ice Shelf, East Antarctica will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1217778