globalchange  > 气候变化事实与影响
DOI: 10.1038/sdata.2019.37
WOS记录号: WOS:000464192400001
论文题名:
Circumpolar permafrost maps and geohazard indices for near-future infrastructure risk assessments
作者: Karjalainen, Olli1; Aalto, Juha2; Luoto, Miska2; Westermann, Sebastian4; Romanovsky, Vladimir E.5,6; Nelson, Frederick E.7,8; Etzelmueller, Bernd4; Hjort, Jan1
通讯作者: Karjalainen, Olli
刊名: SCIENTIFIC DATA
EISSN: 2052-4463
出版年: 2019
卷: 6
语种: 英语
WOS关键词: ALASKA PUBLIC INFRASTRUCTURE ; ACTIVE-LAYER THICKNESS ; NORTH-CENTRAL ALASKA ; CLIMATE-CHANGE ; THERMAL STATE ; SPATIAL-RESOLUTION ; DEGRADATION ; DYNAMICS ; CMIP5 ; VARIABILITY
WOS学科分类: Multidisciplinary Sciences
WOS研究方向: Science & Technology - Other Topics
英文摘要:

Ongoing climate change is causing fundamental changes in the Arctic, some of which can be hazardous to nature and human activity. In the context of Earth surface systems, warming climate may lead to rising ground temperatures and thaw of permafrost. This Data Descriptor presents circumpolar permafrost maps and geohazard indices depicting zones of varying potential for development of hazards related to near-surface permafrost degradation, such as ground subsidence. Statistical models were used to predict ground temperature and the thickness of the seasonally thawed (active) layer using geospatial data on environmental conditions at 30 arc-second resolution. These predictions, together with data on factors (ground ice content, soil grain size and slope gradient) affecting permafrost stability, were used to formulate geohazard indices. Using climate-forcing scenarios (Representative Concentration Pathways 2.6, 4.5 and 8.5), permafrost extent and hazard potential were projected for the 2041-2060 and 2061-2080 time periods. The resulting data (seven permafrost and 24 geohazard maps) are relevant to near-future infrastructure risk assessments and for targeting localized geohazard analyses.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/131921
Appears in Collections:气候变化事实与影响

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作者单位: 1.Univ Oulu, Geog Res Unit, Oulu, Finland
2.Univ Helsinki, Dept Geosci & Geog, Helsinki, Finland
3.Finnish Meteorol Inst, Helsinki, Finland
4.Univ Oslo, Dept Geosci, Oslo, Norway
5.Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA
6.Tyumen State Univ, Dept Cryosophy, Tyumen, Russia
7.Michigan State Univ, Dept Geog Environm & Spatial Sci, E Lansing, MI 48824 USA
8.Northern Michigan Univ, Dept Earth Environm & Geog Sci, Marquette, MI 49855 USA

Recommended Citation:
Karjalainen, Olli,Aalto, Juha,Luoto, Miska,et al. Circumpolar permafrost maps and geohazard indices for near-future infrastructure risk assessments[J]. SCIENTIFIC DATA,2019-01-01,6
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