globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2021.116811
论文题名:
Frontal ablation and mass loss of the Patagonian icefields
作者: Minowa M.; Schaefer M.; Sugiyama S.; Sakakibara D.; Skvarca P.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2021
卷: 561
语种: 英语
中文关键词: calving glacier ; frontal ablation ; ice mass loss ; Patagonia
英文关键词: Remote sensing ; Complex dynamics ; Ice-mass changes ; Mass change ; Mass loss ; Surface mass balance ; Surface speed ; Ablation ; ablation ; elevation ; glacier dynamics ; glacier mass balance ; glaciology ; ice cover ; ice field ; ice movement ; uncertainty analysis ; Patagonia
英文摘要: The complex dynamics of calving glaciers is a major uncertainty in projecting global glacial mass loss. We present frontal ablation and ice mass change for the 38 major calving glaciers in the Patagonian icefields based on remote-sensing observations of ice-front positions, surface speeds and elevation changes. The frontal ablation from 2000 to 2019 was −24.1 ± 1.7 Gt a−1, which represents 34 ± 6% of the total ablation of the icefields. The fraction of frontal ablation was close to half in the southern icefield and about one fifth in the northern icefield. The rate of the mass loss from the icefields during the period of study was 15.2 ± 3.5 Gt a−1, which is generally explained by surface mass balance but was accelerated as a result of increasing frontal ablation. The frontal ablation and mass change values suggest surface mass balance to be −1.5 ± 0.9 Gt a−1 for the northern icefield and +11.5 ± 2.7 Gt a−1 for the southern icefield during this period. Our study demonstrates that a strong increase in frontal ablation at several glaciers drives the mass loss in the southern icefield, whereas increasingly negative surface mass balance drives the mass loss in the northern icefield. © 2021 Elsevier B.V.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165601
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Instituto de Ciencias Físicas y Matemáticas, Universidad Austral de Chile, Campus Isla Teja, Edificio Emilio Pugín, Valdivia, Chile; Institute of Low Temperature Science, Hokkaido University, Kita-19, Nishi-8, Kita-ku, Sapporo, 060-0819, Japan; Glaciarium—Centro de Interpretación de Glaciares, RP11, El Calafate, Santa Cruz Z9405, Argentina

Recommended Citation:
Minowa M.,Schaefer M.,Sugiyama S.,et al. Frontal ablation and mass loss of the Patagonian icefields[J]. Earth and Planetary Science Letters,2021-01-01,561
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Minowa M.]'s Articles
[Schaefer M.]'s Articles
[Sugiyama S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Minowa M.]'s Articles
[Schaefer M.]'s Articles
[Sugiyama S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Minowa M.]‘s Articles
[Schaefer M.]‘s Articles
[Sugiyama S.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.