Open access
Autor(in)
Alle anzeigen
Datum
2023-06-16Typ
- Journal Article
ETH Bibliographie
yes
Altmetrics
Abstract
The presence of a developed boundary layer decouples a glacier's response from ambient conditions, suggesting that sensitivity to climate change is increased by glacier retreat. To test this hypothesis, we explore six years of distributed meteorological data on a small Swiss glacier in the period 2001-2022. Large glacier fragmentation has occurred since 2001 (-35% area change up to 2022) coinciding with notable frontal retreat, an observed switch from down-glacier katabatic to up-glacier valley winds and an increased sensitivity (ratio) of on-glacier to off-glacier temperature. As the glacier ceases to develop density-driven katabatic winds, sensible heat fluxes on the glacier are increasingly determined by the conditions occurring outside the boundary layer of the glacier, sealing the glacier's demise as the climate continues to warm and experience an increased frequency of extreme summers. Mehr anzeigen
Persistenter Link
https://doi.org/10.3929/ethz-b-000616977Publikationsstatus
publishedExterne Links
Zeitschrift / Serie
Geophysical Research LettersBand
Seiten / Artikelnummer
Verlag
American Geophysical UnionETH Bibliographie
yes
Altmetrics