globalchange  > 影响、适应和脆弱性
DOI: 10.5194/tc-12-1523-2018
Scopus记录号: 2-s2.0-85046150602
论文题名:
Brief communication: Unabated wastage of the Juneau and Stikine icefields (southeast Alaska) in the early 21st century
作者: Berthier E; , Larsen C; , Durkin W; J; , Willis M; J; , Pritchard M; E
刊名: Cryosphere
ISSN: 19940416
出版年: 2018
卷: 12, 期:4
起始页码: 1523
结束页码: 1530
语种: 英语
英文摘要: The large Juneau and Stikine icefields (Alaska) lost mass rapidly in the second part of the 20th century. Laser altimetry, gravimetry and field measurements suggest continuing mass loss in the early 21st century. However, two recent studies based on time series of Shuttle Radar Topographic Mission (SRTM) and Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) digital elevation models (DEMs) indicate a slowdown in mass loss after 2000. Here, the ASTER-based geodetic mass balances are recalculated carefully avoiding the use of the SRTM DEM because of the unknown penetration depth of the C-band radar signal. We find strongly negative mass balances from 2000 to 2016 (-0.68 ± 0.15 m w.e. a-1 for the Juneau Icefield and -0.83 ± 0.12 m w.e. a-1 for the Stikine Icefield), in agreement with laser altimetry, confirming that mass losses are continuing at unabated rates for both icefields. The SRTM DEM should be avoided or used very cautiously to estimate glacier volume change, especially in the North Hemisphere and over timescales of less than ∼ 20 years. © 2018 Author(s).
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75366
Appears in Collections:影响、适应和脆弱性
气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: LEGOS, Université de Toulouse, CNES, CNRS, IRD, UPS, Toulouse, France; Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK, United States; Earth and Atmospheric Sciences Department, Cornell University, Ithaca, NY, United States; Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO, United States

Recommended Citation:
Berthier E,, Larsen C,, Durkin W,et al. Brief communication: Unabated wastage of the Juneau and Stikine icefields (southeast Alaska) in the early 21st century[J]. Cryosphere,2018-01-01,12(4)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Berthier E]'s Articles
[, Larsen C]'s Articles
[, Durkin W]'s Articles
百度学术
Similar articles in Baidu Scholar
[Berthier E]'s Articles
[, Larsen C]'s Articles
[, Durkin W]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Berthier E]‘s Articles
[, Larsen C]‘s Articles
[, Durkin W]‘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.