23 Mar 2023
 | 23 Mar 2023
Status: a revised version of this preprint is currently under review for the journal TC.

Brief communication: The Glacier Loss Day as indicator for extreme glacier melt in 2022

Annelies Voordendag, Rainer Prinz, Lilian Schuster, and Georg Kaser

Abstract. In the hydrological year 2021/22 Alpine glaciers showed unprecedented mass loss. On Hintereisferner (Ötztal Alps, Austria), the glacier-wide mass balance was −3319 kg m−2. Near-daily observations of surface elevation changes from a permanent terrestrial laser scanning setup allowed determining the day when the mass balance of Hintereisferner started to become negative. This Glacier Loss Day (GLD) was already reached on 24 June in 2022 and gave way to a long ice ablation period. In 2021/22, this and the high cumulative positive degree days explain the record mass loss. By comparing the GLDs of 2019/20–2021/22, we found a gross yet expressive indicator of the glacier’s imbalance with the persistently warming climate.

Annelies Voordendag et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on tc-2023-49', Anonymous Referee #1, 07 Apr 2023
    • AC1: 'Reply on RC1', Annelies Voordendag, 23 May 2023
  • CC1: 'Comment on tc-2023-49', Aaron Cremona, 20 Apr 2023
  • RC2: 'Comment on tc-2023-49', Aaron Cremona, 25 Apr 2023
    • AC2: 'Reply on RC2', Annelies Voordendag, 23 May 2023

Annelies Voordendag et al.

Annelies Voordendag et al.


Total article views: 474 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
322 133 19 474 5 5
  • HTML: 322
  • PDF: 133
  • XML: 19
  • Total: 474
  • BibTeX: 5
  • EndNote: 5
Views and downloads (calculated since 23 Mar 2023)
Cumulative views and downloads (calculated since 23 Mar 2023)

Viewed (geographical distribution)

Total article views: 453 (including HTML, PDF, and XML) Thereof 453 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
Latest update: 03 Jun 2023
Short summary
The Glacier Loss Day (GLD) is the day when all mass gained from the accumulation period is lost and the glacier loses mass irrecoverably for the rest of the mass balance year. In 2022, this GLD was already reached at 24 June at Hintereisferner (Austria) and led to a record mass loss. We introduce the GLD as a gross yet expressive indicator of the glacier’s imbalance with the persistently warming climate.