气候变化领域集成服务门户(CCPortal): The Color of Rivers

CCPortal

DOI	10.1029/2020GL088946
	The Color of Rivers
	Gardner J.R.; Yang X.; Topp S.N.; Ross M.R.V.; Altenau E.H.; Pavelsky T.M.
发表日期	2021
ISSN	0094-8276
卷号	48 期号:1
英文摘要	Rivers are among the most imperiled ecosystems globally, yet we do not have broad-scale understanding of their changing ecology because most are rarely sampled. Water color, as perceived by the human eye, is an integrative measure of water quality directly observed by satellites. We examined patterns in river color between 1984 and 2018 by building a remote sensing database of surface reflectance, RiverSR, extracted from 234,727 Landsat images covering 108,000 kilometers of rivers > 60 m wide in the contiguous USA. We found 1) broad regional patterns in river color, with 56% of observations dominantly yellow and 38% dominantly green; 2) river color has three distinct seasonal patterns that were synchronous with flow regimes; 3) one third of rivers had significant color shifts over the last 35 years. RiverSR provides the first map of river color and new insights into macrosystems ecology of rivers. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Satellites
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169276
作者单位	Department of Geological Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States; Department of Geology and Environmental Science, University of Pittsburgh, Pittsburgh, PA, United States; Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO, United States
推荐引用方式 GB/T 7714	Gardner J.R.,Yang X.,Topp S.N.,et al. The Color of Rivers[J],2021,48(1).
APA	Gardner J.R.,Yang X.,Topp S.N.,Ross M.R.V.,Altenau E.H.,&Pavelsky T.M..(2021).The Color of Rivers.Geophysical Research Letters,48(1).
MLA	Gardner J.R.,et al."The Color of Rivers".Geophysical Research Letters 48.1(2021).