Continued deceleration of Whillans ice stream, West Antarctica
journal contribution
posted on 2023-05-17, 15:14authored byJoughin, I, Bindschadler, RA, Matt KingMatt King, Voigt, D, Alley, RB, Anandakrishnan, S, Horgan, H, Peters, L, Winberry, P, Das, SB, Catania, G
Earlier observations indicated that Whillans Ice Stream slowed from 1973 to 1997. We collected new GPS observations of the ice stream's speed in 2003 and 2004. These data show that the ice stream is continuing to decelerate at rates of about 0.61%/yr2, with faster rates near the grounding line. Our data also indicate that the deceleration extends over the full width of the ice plain. Extrapolation of the deceleration trend suggests the ice stream could stagnate sometime between the middle of the 21st and 22nd Centuries.
History
Publication title
Geophysical Research Letters
Volume
32
Issue
22
Article number
L22501
Number
L22501
Pagination
1-4
ISSN
0094-8276
Department/School
School of Geography, Planning and Spatial Sciences