Articles | Volume 13, issue 7
Research article
17 Jul 2019
Research article |  | 17 Jul 2019

Past water flow beneath Pine Island and Thwaites glaciers, West Antarctica

James D. Kirkham, Kelly A. Hogan, Robert D. Larter, Neil S. Arnold, Frank O. Nitsche, Nicholas R. Golledge, and Julian A. Dowdeswell


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (21 Jun 2019) by Chris R. Stokes
AR by Anna Mirena Feist-Polner on behalf of the Authors (26 Jun 2019)  Author's response
ED: Publish as is (26 Jun 2019) by Chris R. Stokes
Short summary
A series of huge (500 m wide, 50 m deep) channels were eroded by water flowing beneath Pine Island and Thwaites glaciers in the past. The channels are similar to canyon systems produced by floods of meltwater released beneath the Antarctic Ice Sheet millions of years ago. The spatial extent of the channels formed beneath Pine Island and Thwaites glaciers demonstrates significant quantities of water, possibly discharged from trapped subglacial lakes, flowed beneath these glaciers in the past.