Articles | Volume 17, issue 1
Research article
24 Jan 2023
Research article |  | 24 Jan 2023

Timescales of outlet-glacier flow with negligible basal friction: theory, observations and modeling

Johannes Feldmann and Anders Levermann


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on tc-2022-141', Anonymous Referee #1, 14 Sep 2022
    • AC1: 'Reply on RC1', Johannes Feldmann, 21 Nov 2022
  • RC2: 'Comment on tc-2022-141', Camilla Schelpe, 21 Nov 2022
    • AC2: 'Reply on RC2', Johannes Feldmann, 21 Nov 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by editor) (21 Nov 2022) by Alexander Robinson
AR by Johannes Feldmann on behalf of the Authors (20 Dec 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (06 Jan 2023) by Alexander Robinson
Short summary
Here we present a scaling relation that allows the comparison of the timescales of glaciers with geometric similarity. According to the relation, thicker and wider glaciers on a steeper bed slope have a much faster timescale than shallower, narrower glaciers on a flatter bed slope. The relation is supported by observations and simplified numerical simulations. We combine the scaling relation with a statistical analysis of the topography of 13 instability-prone Antarctic outlet glaciers.