CAREER: Active Learning Across Interfaces: Controls on Flow Intermittency and Water Age in Temporary Streams

职业：跨界面主动学习：临时河流的流量间歇性和水龄控制

• 批准号: 1653998
• 负责人: Sarah Godsey
• 金额: $ 58.37万
• 依托单位: Idaho State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1653998&HistoricalAwards=false
• 关键词: CAREER; Active; Learning; Across; Interfaces

Over 1/3 of the United States' population relies on temporary streams--channels that do not always have water flowing in them--for their water supply. The U.S. Supreme Court and the Environmental Protection Agency have both recently noted the importance of understanding these streams to ensure fishable, swimmable, and drinkable waters throughout the country. Surprisingly, it remains challenging to predict where and when streams will run dry, and which streams will be most likely to shift from flowing year-round to occasionally running dry during droughts. This project will address that gap by mapping where streams are flowing, and linking these maps to expected controls including rainfall, snowmelt, plant water use, and below-ground characteristics. We will collect water samples to test whether these different controls on flow affect water quality. These samples will also indicate how long ago the stream water fell as rain or snow, which may affect how often a stream dries up. In addition, the project will train a diverse group of students from elementary school through graduate school in cutting-edge temporary stream science. New courses will be developed to train college students in environmental field methods and to engage river guides in sharing temporary stream science with whitewater enthusiasts. Finally, the project will work with watershed managers to develop cheaper and better scientific insight into the temporary streams they manage.Temporary streams ?channels with either intermittent or ephemeral flows ? supply water for ~1/3 of the US population and sustain stream ecological health in many headwater systems. Research is needed on the dynamics of channels with flowing surface waters--the active drainage network--and the sensitivity of this network to changes in climate and land use. This work examines potential controls on active drainage network dynamics across a suite of sites, including multiple NSF Critical Zone Observatories. This project will lead to mapped active drainage networks as well as models linking precipitation, evapotranspiration and inferred transmissivity patterns to the active drainage network, including potential effects of intermittency on water quality. The central hypothesis is that transmissivity is the primary control on flow permanence, and that spatial variations in the active drainage network reflect hydraulic conductivity, geometry, and water age. This project will integrate teaching and research by training a diverse undergraduate and graduate student population in temporary stream science, and by engaging them in field research through an intensive environmental field methods course, mentored undergraduate research, and outreach with K-12 students and river guides in collaboration with the U. Idaho McCall Outdoor Science School. Finally, the project will improve regional stream management outcomes through iterative collaboration on targeted joint research and restoration efforts with local watershed managers.

超过三分之一的美国人口依赖临时溪流--并不总是有水流入的渠道--来供水。美国最高法院和环境保护署最近都指出了了解这些河流的重要性，以确保全国各地的可捕鱼，可游泳和可饮用的沃茨。令人惊讶的是，预测河流何时何地干涸仍然具有挑战性，哪些河流最有可能从全年流动转变为偶尔在干旱期间干涸。该项目将通过绘制河流流向图，并将这些地图与预期的控制措施（包括降雨、融雪、植物用水和地下特征）联系起来，来解决这一差距。我们会收集水质样本，以测试这些不同的水流管制措施会否影响水质。这些样本还将表明多久以前的溪流水下降为雨或雪，这可能会影响多久一条溪流干涸。此外，该项目将培训从小学到研究生院的各种学生，学习尖端的临时溪流科学。将开发新的课程，以培训大学生在环境领域的方法，并从事河流导游分享临时流科学与白水爱好者。最后，该项目将与流域管理者合作，对他们管理的临时河流进行更便宜、更好的科学研究。间歇性或短暂流动的渠道？为约1/3的美国人口供水，并在许多水源系统中维持河流生态健康。需要研究具有流动表面沃茨的渠道的动态-主动排水网络-以及该网络对气候和土地使用变化的敏感性。这项工作研究了一套网站，包括多个NSF临界区观测站的主动排水网络动态的潜在控制。这一项目将导致绘制活动排水网络图，以及将降水、蒸散和推断出的渗透模式与活动排水网络联系起来的模型，包括渗透对水质的潜在影响。中心的假设是，transmittance是流量持久性的主要控制，并在主动排水网络的空间变化反映水力传导率，几何形状，和水的年龄。该项目将通过培训多样化的本科生和研究生人口在临时流科学整合教学和研究，并通过一个密集的环境领域的方法课程，指导本科生研究，并与K-12学生和河流导游合作推广他们在实地研究与美国。爱达荷州麦考尔户外科学学校。最后，该项目将通过与当地流域管理人员就有针对性的联合研究和恢复工作进行反复合作，改善区域河流管理成果。

项目成果

Dynamic stream network intermittence explains emergent dissolved organic carbon chemostasis in headwaters

• DOI: 10.1002/hyp.13455
• 发表时间: 2019-06-30
• 期刊: HYDROLOGICAL PROCESSES
• 影响因子: 3.2
• 作者: Hale, Rebecca L.;Godsey, Sarah E.
• 通讯作者: Godsey, Sarah E.

Effects of spatial and temporal variability in surface water inputs on streamflow generation and cessation in the rain–snow transition zone

地表水输入的时空变化对雨雪过渡区水流生成和停止的影响

• DOI: 10.5194/hess-26-2779-2022
• 发表时间: 2022
• 期刊: Hydrology and Earth System Sciences
• 影响因子: 6.3
• 作者: Kiewiet, Leonie;Trujillo, Ernesto;Hedrick, Andrew;Havens, Scott;Hale, Katherine;Seyfried, Mark;Kampf, Stephanie;Godsey, Sarah E.
• 通讯作者: Godsey, Sarah E.

Influence of Drying and Wildfire on Longitudinal Chemistry Patterns and Processes of Intermittent Streams

干燥和野火对间歇流纵向化学模式和过程的影响

• DOI: 10.3389/frwa.2020.563841
• 发表时间: 2020
• 期刊: Frontiers in Water
• 影响因子: 2.9
• 作者: MacNeille, Ruth B.;Lohse, Kathleen A.;Godsey, Sarah E.;Perdrial, Julia N.;Baxter, Colden V.
• 通讯作者: Baxter, Colden V.

Drivers of spatiotemporal patterns of surface water inputs in a catchment at the rain-snow transition zone of the water-limited western United States

美国西部水资源有限的雨雪过渡区流域地表水输入时空模式的驱动因素

• DOI: 10.1016/j.jhydrol.2022.128699
• 发表时间: 2023
• 期刊: Journal of Hydrology
• 影响因子: 6.4
• 作者: Hale, K.;Kiewiet, L.;Trujillo, E.;Krohe, C.;Hedrick, A.;Marks, D.;Kormos, P.;Havens, S.;McNamara, J.;Link, T.
• 通讯作者: Link, T.

Influence of groundwater and topography on stream drying in semi‐arid headwater streams

地下水和地形对半干旱源头河流干燥的影响

• DOI: 10.1002/hyp.14185
• 发表时间: 2021
• 期刊: Hydrological Processes
• 影响因子: 3.2
• 作者: Warix, Sara R.;Godsey, Sarah E.;Lohse, Kathleen A.;Hale, Rebecca L.
• 通讯作者: Hale, Rebecca L.