Jenn Hoyle Fair is a Research Hydrologist in the Eastern Ecological Science Center.
Jenn Hoyle Fair is a catchment scientist and Research Hydrologist with a background in watershed management planning, hydrology and hydraulics of river restoration, and measurement and modeling of catchment nutrient and carbon fluxes. Fair is currently on reassignment to the USGS Ecosystems Mission Area (EMA) Leetown Science Center to work on the EcoDrought project. Currently stationed at the USGS S.O. Conte Anadromous Fish Research Laboratory, Fair is part of an interdisciplinary team of fish ecologists, fish biologists, and hydrologists working to better understand how extremes in stream flow, particularly droughts, control presence/absence and abundance of Eastern Brook Trout in headwater streams. In addition to the EcoDrought project, Fair is involved in ongoing projects at the New England Water Science Center to update low flow statistics for New England streams and construct online tools to aid in design of stream crossing infrastructure.
For her doctorate research at the Yale School of the Environment she focused on the hydrologic controls on dissolved organic carbon flux in the USGS Sleepers River Research Watershed in northeastern Vermont, USA. Fair has experience with design, installation, and maintenance of a network of in situ water quality sensors (including fDOM), correction and management of large timeseries of water quality and hydrology data, and programming of rainfall-runoff and solute transport models. Prior to graduate school Fair worked as a water resource engineer focused on drinking water supply protection.
Science and Products
Bedrock depth influences spatial patterns of summer baseflow, temperature and flow disconnection for mountainous headwater streams
Evaluating streamwater dissolved organic carbon dynamics in context of variable flowpath contributions with a tracer-based mixing model
Source switching maintains dissolved organic matter chemostasis across discharge levels in a large temperate river network
Sleepers River Research Watershed
About the Ecosystems Mission Area
The USGS is sought out by thousands of partners and stakeholders across the United States for our expertise in earth and biological science that supports public resources in wild and urban spaces, and all landscapes in-between.
USGS EcoDrought Stream Discharge, Gage Height, and Water Temperature in Shenandoah National Park, Virginia
USGS EcoDrought Stream Discharge, Gage Height, and Water Temperature Data in Massachusetts
Science and Products
- Publications
Bedrock depth influences spatial patterns of summer baseflow, temperature and flow disconnection for mountainous headwater streams
In mountain headwater streams, the quality and resilience of summer cold-water habitat is generally regulated by stream discharge, longitudinal stream channel connectivity and groundwater exchange. These critical hydrologic processes are thought to be influenced by the stream corridor bedrock contact depth (sediment thickness), a parameter often inferred from sparse hillslope borehole information,Evaluating streamwater dissolved organic carbon dynamics in context of variable flowpath contributions with a tracer-based mixing model
This study focuses on characterizing the contributions of key terrestrial pathways that deliver dissolved organic carbon (DOC) to streams during hydrological events and on elucidating factors governing variation in water and DOC fluxes from these pathways. We made high-frequency measurements of discharge, specific conductance (SC), and fluorescent dissolved organic matter (FDOM) during 221 eventsSource switching maintains dissolved organic matter chemostasis across discharge levels in a large temperate river network
Dissolved organic matter (DOM) helps regulate aquatic ecosystem structure and function. In small streams, DOM concentrations are controlled by transport of terrestrial materials to waterways, and are thus highly variable. As rivers become larger, the River Continuum Concept hypothesizes that internal primary production is an increasingly important DOM source, but direct evidence is limited. Recent - Science
Sleepers River Research Watershed
The Sleepers River Research Watershed in Danville, Vermont has been the site of active hydrologic research since 1959, when the Agricultural Research Service (ARS) of the U.S. Department of Agriculture (USDA) established a research program in the watershed. The Sleepers River site is now operated by the USGS, in cooperation with several other Federal agencies and universities.About the Ecosystems Mission Area
The USGS is sought out by thousands of partners and stakeholders across the United States for our expertise in earth and biological science that supports public resources in wild and urban spaces, and all landscapes in-between.
- Data
USGS EcoDrought Stream Discharge, Gage Height, and Water Temperature in Shenandoah National Park, Virginia
The U.S. Geological Survey (USGS) Water Mission Area (WMA) - Ecosystems Mission Area (EMA) EcoDrought project is comprised of interdisciplinary teams in five pilot regions across the country. The over-arching project goal is to measure streamflow in headwater streams and to relate flow variation to stream fish population dynamics. For the catchments located in Shenandoah National Park, Virginia,USGS EcoDrought Stream Discharge, Gage Height, and Water Temperature Data in Massachusetts
The USGS Water Mission Area (WMA) - Ecosystems Mission Area (EMA) EcoDrought project is comprised of interdisciplinary teams in five pilot regions across the country. The over-arching project goal is to measure streamflow in headwater streams and to relate flow variation to stream fish population dynamics. In the northeast, the New England Water Science Center (NewEngWSC) partnered with the fish - Multimedia
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