Mass Loss of Glaciers and Ice Caps Across Greenland Since the Little Ice Age
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Glaciers and ice caps (GICs) are important contributors of meltwater runoff and to global sea level rise. However, knowledge of GIC mass changes is largely restricted to the last few decades. Here we show the extent of 5327 Greenland GICs during Little Ice Age (LIA) termination (1900) and reveal that they have fragmented into 5467 glaciers in 2001, losing at least 587 km3 from their ablation areas, equating to 499 Gt at a rate of 4.34 Gt yr−1. We estimate that the long-term mean mass balance in glacier ablation areas has been at least −0.18 to −0.22 m w.e. yr−1 and note the rate between 2000 and 2019 has been three times that. Glaciers with ice-marginal lakes formed since the LIA termination have had the fastest changing mass balance. Considerable spatial variability in glacier changes suggest compounding regional and local factors present challenges for understanding glacier evolution.
| Originalsprog | Engelsk |
|---|---|
| Artikelnummer | e2023GL103950 |
| Tidsskrift | Geophysical Research Letters |
| Vol/bind | 50 |
| Udgave nummer | 10 |
| Antal sider | 9 |
| ISSN | 0094-8276 |
| DOI | |
| Status | Udgivet - 2023 |
Bibliografisk note
Funding Information:
We gratefully acknowledge receipt of funding from INTERACT for access to DMI Qaanaaq. MG was in receipt of a NERC PANORAMA DTP NE/L002574/1 PhD studentship whilst completing work for this study. JA was supported by FWF project P 35388. KKK acknowledges support from the Programme for monitoring of the Greenland ice sheet (PROMICE) at the Geological survey of Denmark and Greenland (GEUS). AAB acknowledges support from the Villum Foundation, Villum Young Investigator Grant 29456. We thank three reviewers for their comments that helped to improve the text.
Funding Information:
We gratefully acknowledge receipt of funding from INTERACT for access to DMI Qaanaaq. MG was in receipt of a NERC PANORAMA DTP NE/L002574/1 PhD studentship whilst completing work for this study. JA was supported by FWF project P 35388. KKK acknowledges support from the Programme for monitoring of the Greenland ice sheet (PROMICE) at the Geological survey of Denmark and Greenland (GEUS). AAB acknowledges support from the Villum Foundation, Villum Young Investigator Grant 29456. We thank three reviewers for their comments that helped to improve the text.
Publisher Copyright:
© 2023. The Authors.
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