Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072009 |
Contrasting hydrogeologic responses to warming in permafrost and seasonally frozen ground hillslopes | |
Evans, Sarah G.; Ge, Shemin | |
2017-02-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:4 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Seasonally frozen ground (SFG) and permafrost underlay approximately half of the land surface in the Northern Hemisphere. It is anticipated that climate warming will degrade both types of frozen ground, altering groundwater discharge to streams. While the effects of permafrost degradation on groundwater discharge have been analyzed, quantification of how groundwater discharge in degrading permafrost differs from that in SFG is lacking. This study simulates coupled groundwater and heat transport under freeze-thaw conditions for four representative hillslopes underlain by either continuous permafrost or SFG and compares groundwater discharge outputs under projected warming scenarios over decadal scales. Model results show that without warming there is more groundwater discharge in hillslopes with SFG than permafrost. After a century of warming, groundwater discharge increases for both kinds of frozen ground, but permafrost experiences a larger increase than SFG. These findings have implications for aquatic ecosystems and prioritizing water resource planning. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396411100022 |
WOS关键词 | YUKON FLATS ; THAW LAKES ; WATER ; FLOW ; HEAT ; TRANSPORT ; CLIMATE ; MODEL ; SOIL ; INFILTRATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27114 |
专题 | 气候变化 |
作者单位 | Univ Colorado, Dept Geol Sci, Boulder, CO 80309 USA |
推荐引用方式 GB/T 7714 | Evans, Sarah G.,Ge, Shemin. Contrasting hydrogeologic responses to warming in permafrost and seasonally frozen ground hillslopes[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(4). |
APA | Evans, Sarah G.,&Ge, Shemin.(2017).Contrasting hydrogeologic responses to warming in permafrost and seasonally frozen ground hillslopes.GEOPHYSICAL RESEARCH LETTERS,44(4). |
MLA | Evans, Sarah G.,et al."Contrasting hydrogeologic responses to warming in permafrost and seasonally frozen ground hillslopes".GEOPHYSICAL RESEARCH LETTERS 44.4(2017). |
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