Zero or not? Causes and consequences of zero‐flow stream gage readings
Zero or not? Causes and consequences of zero‐flow stream gage readings
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零还是不零?
DOI:
10.1002/wat2.1436
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发表时间:
2020
期刊:
影响因子:
8.2
通讯作者:
Allen, George H.
中科院分区:
文献类型:
--
作者:
Zimmer, Margaret A.;Kaiser, Kendra E.;Blaszczak, Joanna R.;Zipper, Samuel C.;Hammond, John C.;Fritz, Ken M.;Costigan, Katie H.;Hosen, Jacob;Godsey, Sarah E.;Allen, George H.
Streamflow observations can be used to understand, predict, and contextualize hydrologic, ecological, and biogeochemical processes and conditions in streams. Stream gages are point measurements along rivers where streamflow is measured, and are often used to infer upstream watershed‐scale processes. When stream gages read zero, this may indicate that the stream has dried at this location; however, zero‐flow readings can also be caused by a wide range of other factors. Our ability to identify whether or not a zero‐flow gage reading indicates a dry fluvial system has far reaching environmental implications. Incorrect identification and interpretation by the data user can lead to inaccurate hydrologic, ecological, and/or biogeochemical predictions from models and analyses. Here, we describe several causes of zero‐flow gage readings: frozen surface water, flow reversals, instrument error, and natural or human‐driven upstream source losses or bypass flow. For these examples, we discuss the implications of zero‐flow interpretations. We also highlight additional methods for determining flow presence, including direct observations, statistical methods, and hydrologic models, which can be applied to interpret causes of zero‐flow gage readings and implications for reach‐ and watershed‐scale dynamics. Such efforts are necessary to improve our ability to understand and predict surface flow activation, cessation, and connectivity across river networks. Developing this integrated understanding of the wide range of possible meanings of zero‐flows will only attain greater importance in a more variable and changing hydrologic climate.This article is categorized under:Science of Water > MethodsScience of Water > Hydrological ProcessesWater and Life > Conservation, Management, and Awareness
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DOI:
--
发表时间:
1994
期刊:
影响因子:
--
作者:
E. Stanley;D. Buschman;A. Boulton;N. Grimm;S. Fisher
通讯作者:
S. Fisher
DOI:
10.1146/annurev.ecolsys.27.1.365
发表时间:
1996-11
期刊:
Annual Review of Ecology, Evolution, and Systematics
影响因子:
--
作者:
K. Storey;J. Storey
通讯作者:
K. Storey;J. Storey
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
L. Starnes;D. Gasper
通讯作者:
D. Gasper
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
S. Larned;J. Schmidt;T. Datry;C. Konrad;Jennifer K. Dumas;J. Diettrich
通讯作者:
J. Diettrich
DOI:
--
发表时间:
1992
期刊:
影响因子:
--
作者:
K. Bedford
通讯作者:
K. Bedford