Zero or not? Causes and consequences of zero‐flow stream gage readings

Zero or not? Causes and consequences of zero‐flow stream gage readings
复制标题

零还是不零?

DOI:
10.1002/wat2.1436
复制
发表时间:
2020
期刊:
影响因子:
8.2
通讯作者:
Allen, George H.
Allen, George H.
中科院分区:
地球科学2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.

文献摘要

参考文献

被引文献

相似文献

水流观测可以用来理解、预测和背景化溪流中的水文、生态和生物地球化学过程和条件。河流测量仪是沿着河流测量流量的点测量,通常用于推断上游流域尺度的过程。当流量计读数为零时,这可能表明该位置的流量已干涸;然而,零流量读数也可能由各种其他因素引起。我们识别零流量计读数是否表明河流系统干涸的能力具有深远的环境影响。数据使用者不正确的识别和解释可能导致从模型和分析中得出不准确的水文、生态和/或生物地球化学预测。在这里,我们描述了零流量仪表读数的几个原因:冻结的地表水,流量反转,仪器误差,以及自然或人为驱动的上游源损失或旁路流。对于这些例子,我们讨论了零流解释的含义。我们还强调了确定水流存在的其他方法,包括直接观测、统计方法和水文模型,这些方法可用于解释零流量计读数的原因以及河段和流域尺度动力学的含义。这样的努力是必要的,以提高我们的能力,了解和预测表面流动的激活,停止,以及跨河流网络的连通性。在一个更加多变和不断变化的水文气候中,发展这种对零流量广泛可能含义的综合理解只会变得更加重要。这篇文章被分类为:水科学bb0方法;水科学bb1水文过程;水与生命bb2保护、管理和意识
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
无脊椎动物对沙漠溪流间歇性的抵抗力和恢复力
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
纵向河流生态水文学:沿冲积河长度的流量变化
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