globalchange  > 科学计划与规划
DOI: 10.1002/2014GL062764
论文题名:
Patterns of river width and surface area revealed by the satellite-derived North American River Width data set
作者: Allen G.H.; Pavelsky T.M.
刊名: Geophysical Research Letters
ISSN: 0094-9013
EISSN: 1944-8744
出版年: 2015
卷: 42, 期:2
起始页码: 395
结束页码: 402
语种: 英语
英文关键词: fluvial geomorphology ; hydrologic scaling ; remote sensing ; river channels ; river surface area ; river width
Scopus关键词: Geomorphology ; Greenhouse gases ; Remote sensing ; Biogeochemical models ; Confidence interval ; Digital elevation model ; Fluvial geomorphology ; hydrologic scaling ; River channels ; Surface area ; Total surface area ; Rivers ; annual variation ; data set ; database ; discharge ; estimation method ; flow pattern ; Landsat ; river channel ; river water ; spatial resolution ; surface area ; North America
英文摘要: As hydraulic, hydrologic, and biogeochemical models evolve toward greater spatial resolution and larger extent, robust morphometric data sets are essential to constrain their results. Here we present the Landsat-derived North American River Width (NARWidth) data set, the first fine-resolution, continental scale river centerline and width database. NARWidth contains measurements of >2.4 × 105 km of rivers wider than 30 m at mean annual discharge. We find that conventional digital elevation model-derived width data sets underestimate the abundance of wide rivers. To calculate the total surface area of North American rivers, we extrapolate the strong observed relationship between river width and total surface area at different river widths (r2 > 0.99 for 100-2000 m widths) to narrower rivers and streams. We conservatively estimate the total surface area of North American rivers as 1.24-0.15+0.39 × 105 km2 (1σ confidence intervals), values 20-15+38% greater than previous estimates used to evaluate greenhouse gas efflux from rivers to the atmosphere. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923377107&doi=10.1002%2f2014GL062764&partnerID=40&md5=ccefac36602ae9aa28b00fd076eb8742
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8629
Appears in Collections:科学计划与规划
气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Department of Geological Sciences, University of North Carolina, Chapel Hill, NC, United States

Recommended Citation:
Allen G.H.,Pavelsky T.M.. Patterns of river width and surface area revealed by the satellite-derived North American River Width data set[J]. Geophysical Research Letters,2015-01-01,42(2).
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Allen G.H.]'s Articles
[Pavelsky T.M.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Allen G.H.]'s Articles
[Pavelsky T.M.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Allen G.H.]‘s Articles
[Pavelsky T.M.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.