Articles | Volume 19, issue 10
https://doi.org/10.5194/tc-19-4167-2025
https://doi.org/10.5194/tc-19-4167-2025
Research article
 | 
02 Oct 2025
Research article |  | 02 Oct 2025

Multi-frequency altimetry snow depth estimates over heterogeneous snow-covered Antarctic summer sea ice – Part 1: C∕S-, Ku-, and Ka-band airborne observations

Renée Mie Fredensborg Hansen, Henriette Skourup, Eero Rinne, Arttu Jutila, Isobel R. Lawrence, Andrew Shepherd, Knut Vilhelm Høyland, Jilu Li, Fernando Rodriguez-Morales, Sebastian Bjerregaaard Simonsen, Jeremy Wilkinson, Gaelle Veyssiere, Donghui Yi, René Forsberg, and Taniâ Gil Duarte Casal

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on egusphere-2024-2854', Anonymous Referee #1, 14 Oct 2024
    • AC1: 'Reply on RC1', Renée Mie Fredensborg Hansen, 01 Nov 2024
  • RC2: 'Comment on egusphere-2024-2854', Anonymous Referee #2, 21 Oct 2024
    • AC2: 'Reply on RC2', Renée Mie Fredensborg Hansen, 01 Nov 2024
  • AC3: 'Combined responses to both reviewers and overview of most important edits based on reviewer comments', Renée Mie Fredensborg Hansen, 01 Nov 2024
  • AC4: 'Final response on egusphere-2024-2854', Renée Mie Fredensborg Hansen, 20 Nov 2024

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (20 Nov 2024) by Vishnu Nandan
AR by Renée Mie Fredensborg Hansen on behalf of the Authors (20 Nov 2024)
EF by Natascha Töpfer (04 Dec 2024)  Manuscript   Author's response   Author's tracked changes 
ED: Referee Nomination & Report Request started (05 Dec 2024) by Vishnu Nandan
RR by John Yackel (14 Dec 2024)
RR by Anonymous Referee #3 (10 Apr 2025)
ED: Reconsider after major revisions (further review by editor and referees) (10 Apr 2025) by Vishnu Nandan
AR by Renée Mie Fredensborg Hansen on behalf of the Authors (22 May 2025)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (05 Jun 2025) by Vishnu Nandan
RR by Anonymous Referee #3 (07 Jun 2025)
ED: Publish as is (07 Jun 2025) by Vishnu Nandan
AR by Renée Mie Fredensborg Hansen on behalf of the Authors (01 Jul 2025)
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Short summary
An airborne campaign collected unprecedented coincident multi-frequency radar and lidar data over sea ice along a CryoSat-2 and ICESat-2 (CRYO2ICE) orbit in the Weddell Sea, useful for evaluating microwave snow penetration. Ka-band and Ku-band had limited penetration with significant contributions from the air–snow interface, contradicting traditional assumptions with discrepancies between commonly used C/S-band "snow-radar" methodologies, all challenging comparisons of airborne and spaceborne estimates.
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