气候变化领域集成服务门户(CCPortal): Recent changes to Arctic river discharge

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DOI	10.1038/s41467-021-27228-1
	Recent changes to Arctic river discharge
	Feng D.; Gleason C.J.; Lin P.; Yang X.; Pan M.; Ishitsuka Y.
发表日期	2021
ISSN	2041-1723
卷号	12 期号:1
英文摘要	Arctic rivers drain ~15% of the global land surface and significantly influence local communities and economies, freshwater and marine ecosystems, and global climate. However, trusted and public knowledge of pan-Arctic rivers is inadequate, especially for small rivers and across Eurasia, inhibiting understanding of the Arctic response to climate change. Here, we calculate daily streamflow in 486,493 pan-Arctic river reaches from 1984-2018 by assimilating 9.18 million river discharge estimates made from 155,710 satellite images into hydrologic model simulations. We reveal larger and more heterogenous total water export (3-17% greater) and water export acceleration (factor of 1.2-3.3 larger) than previously reported, with substantial differences across basins, ecoregions, stream orders, human regulation, and permafrost regimes. We also find significant changes in the spring freshet and summer stream intermittency. Ultimately, our results represent an updated, publicly available, and more accurate daily understanding of Arctic rivers uniquely enabled by recent advances in hydrologic modeling and remote sensing. © 2021, The Author(s).
语种	英语
scopus关键词	freshwater ecosystem; hydrological modeling; land surface; permafrost; remote sensing; river discharge; streamflow; Arctic; Eurasia
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250567
作者单位	Department of Civil and Environmental Engineering, University of Massachusetts, Amherst, MA, United States; Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ, United States; Department of Earth, Marine and Environmental Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States; Center for Western Weather and Water Extremes, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States
推荐引用方式 GB/T 7714	Feng D.,Gleason C.J.,Lin P.,et al. Recent changes to Arctic river discharge[J],2021,12(1).
APA	Feng D.,Gleason C.J.,Lin P.,Yang X.,Pan M.,&Ishitsuka Y..(2021).Recent changes to Arctic river discharge.Nature Communications,12(1).
MLA	Feng D.,et al."Recent changes to Arctic river discharge".Nature Communications 12.1(2021).