Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073834 |
Glacierized headwater streams as aquifer recharge corridors, subarctic Alaska | |
Liljedahl, A. K.1; 39;Neel, S.2 | |
2017-07-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Arctic river discharge has increased in recent decades although sources and mechanisms remain debated. Abundant literature documents permafrost thaw and mountain glacier shrinkage over the past decades. Here we link glacier runoff to aquifer recharge via a losing headwater stream in subarctic Interior Alaska. Field measurements in Jarvis Creek (634 km(2)), a subbasin of the Tanana and Yukon Rivers, show glacier meltwater runoff as a large component (15-28%) of total annual streamflow despite low glacier cover (3%). About half of annual headwater streamflow is lost to the aquifer (38 to 56%). The estimated long-term change in glacier-derived aquifer recharge exceeds the observed increase in Tanana River base flow. Our findings suggest a linkage between glacier wastage, aquifer recharge along the headwater stream corridor, and lowland winter discharge. Accordingly, glacierized headwater streambeds may serve as major aquifer recharge zones in semiarid climates and therefore contributing to year-round base flow of lowland rivers. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000406257400048 |
WOS关键词 | GEODETIC MASS-BALANCE ; YUKON RIVER-BASIN ; ICE CAPS ; OBSERVATIONAL EVIDENCE ; CLIMATE-CHANGE ; PERMAFROST ; DISCHARGE ; SENSITIVITY ; TRENDS |
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/27987 |
专题 | 气候变化 |
作者单位 | 1.Univ Alaska Fairbanks, Water & Environm Res Ctr, Fairbanks, AK 99775 USA; 2.US Geol Survey, Alaska Sci Ctr, Anchorage, AK USA; 3.US Army Cold Reg Res & Engn Lab, Ft Wainwright, AK USA |
推荐引用方式 GB/T 7714 | Liljedahl, A. K.,39;Neel, S.. Glacierized headwater streams as aquifer recharge corridors, subarctic Alaska[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(13). |
APA | Liljedahl, A. K.,&39;Neel, S..(2017).Glacierized headwater streams as aquifer recharge corridors, subarctic Alaska.GEOPHYSICAL RESEARCH LETTERS,44(13). |
MLA | Liljedahl, A. K.,et al."Glacierized headwater streams as aquifer recharge corridors, subarctic Alaska".GEOPHYSICAL RESEARCH LETTERS 44.13(2017). |
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