David M Rey, PhD
David Rey is a Research Hydrologist in the Hydrologic Remote Sensing Branch of the Water Resources Mission Area.
David's specialty is in Arctic and alpine hydrology, however he has expertise in a variety of field, geophysical, and numerical modeling methods. His work focuses on geophysical methods development, and using cross-scale observations combined with numerical modeling to improve prediction and process representation. David's current research interests and efforts are focused on:
- Evolving hydrologic systems in permafrost environments
- Linking snowmelt to streamflow in alpine ecosystems
- The impact of wildfire on groundwater and snow processes
- Development of UAS-based geophysical methods, and systems for remote, autonomous geophysical monitoring
Presently, David is directly contributing to the USGS WB, WAIEE and NGWOS Water Mission Area Programs. He has a Ph.D. from the Colorado School of Mines in Hydrology, and a B.S. in Earth Science from Montana State University.
Science and Products
Filter Total Items: 17
Application of recursive estimation to heat tracing for groundwater/surface-water exchange Application of recursive estimation to heat tracing for groundwater/surface-water exchange
We present and demonstrate a recursive-estimation framework to infer groundwater/surface-water exchange based on temperature time series collected at different vertical depths below the sediment/water interface. We formulate the heat-transport problem as a state-space model (SSM), in which the spatial derivatives in the convection/conduction equation are approximated using finite...
Authors
W. Anderson McAliley, Frederick Day-Lewis, David M. Rey, Martin Briggs, Allen Shapiro, Dale Werkema
Integrating observations and models to determine the effect of seasonally frozen ground on hydrologic partitioning in alpine hillslopes in the Colorado Rocky Mountains, USA Integrating observations and models to determine the effect of seasonally frozen ground on hydrologic partitioning in alpine hillslopes in the Colorado Rocky Mountains, USA
This study integrated spatially distributed field observations and soil thermal models to constrain the impact of frozen ground on snowmelt partitioning and streamflow generation in an alpine catchment within the Niwot Ridge Long-Term Ecological Research site, Colorado, USA. The study area was comprised of two contrasting hillslopes with notable differences in topography, snow depth and...
Authors
David M. Rey, Eve-Lyn Hinckley, Michelle Walvoord, Kamini Singha
Wildfire-initiated talik development exceeds current thaw projections: Observations and models from Alaska's continuous permafrost zone Wildfire-initiated talik development exceeds current thaw projections: Observations and models from Alaska's continuous permafrost zone
As the Arctic warms and wildfire occurrence increases, talik formation in permafrost regions is projected to expand and affect the cycling of water and carbon. Yet, few unified field and modeling studies have examined this process in detail, particularly in areas of continuous permafrost. We address this gap by presenting multimethod, multiseasonal geophysical measurements of permafrost...
Authors
David M. Rey, Michelle Walvoord, Burke Minsley, Brian A. Ebel, Clifford I. Voss, Kamini Singha
Investigating lake-area dynamics across a permafrost-thaw spectrum using airborne electromagnetic surveys and remote sensing time-series data in Yukon Flats, Alaska Investigating lake-area dynamics across a permafrost-thaw spectrum using airborne electromagnetic surveys and remote sensing time-series data in Yukon Flats, Alaska
Lakes in boreal lowlands cycle carbon and supply an important source of freshwater for wildlife and migratory waterfowl. The abundance and distribution of these lakes are supported, in part, by permafrost distribution, which is subject to change. Relationships between permafrost thaw and lake dynamics remain poorly known in most boreal regions. Here, new airborne electromagnetic (AEM)...
Authors
David M. Rey, Michelle Ann Walvoord, Burke Minsley, Jennifer Rover, Kamini Singha
Airborne electromagnetic imaging of permafrost for hydrologic and infrastructure studies Airborne electromagnetic imaging of permafrost for hydrologic and infrastructure studies
Permafrost is found throughout northern latitudes, and hasfar reaching implications for natural and man-made environments including hydrologic processes, landscape dynamics, ecosystems, and infrastructure. While maps of near-surface permafrost characteristics are available, relatively little is known about permafrost distributions at depth over large areas. Here, we summarize several...
Authors
Burke Minsley, Abraham Emond, David M. Rey, Ronald Daanen
Science and Products
Filter Total Items: 17
Application of recursive estimation to heat tracing for groundwater/surface-water exchange Application of recursive estimation to heat tracing for groundwater/surface-water exchange
We present and demonstrate a recursive-estimation framework to infer groundwater/surface-water exchange based on temperature time series collected at different vertical depths below the sediment/water interface. We formulate the heat-transport problem as a state-space model (SSM), in which the spatial derivatives in the convection/conduction equation are approximated using finite...
Authors
W. Anderson McAliley, Frederick Day-Lewis, David M. Rey, Martin Briggs, Allen Shapiro, Dale Werkema
Integrating observations and models to determine the effect of seasonally frozen ground on hydrologic partitioning in alpine hillslopes in the Colorado Rocky Mountains, USA Integrating observations and models to determine the effect of seasonally frozen ground on hydrologic partitioning in alpine hillslopes in the Colorado Rocky Mountains, USA
This study integrated spatially distributed field observations and soil thermal models to constrain the impact of frozen ground on snowmelt partitioning and streamflow generation in an alpine catchment within the Niwot Ridge Long-Term Ecological Research site, Colorado, USA. The study area was comprised of two contrasting hillslopes with notable differences in topography, snow depth and...
Authors
David M. Rey, Eve-Lyn Hinckley, Michelle Walvoord, Kamini Singha
Wildfire-initiated talik development exceeds current thaw projections: Observations and models from Alaska's continuous permafrost zone Wildfire-initiated talik development exceeds current thaw projections: Observations and models from Alaska's continuous permafrost zone
As the Arctic warms and wildfire occurrence increases, talik formation in permafrost regions is projected to expand and affect the cycling of water and carbon. Yet, few unified field and modeling studies have examined this process in detail, particularly in areas of continuous permafrost. We address this gap by presenting multimethod, multiseasonal geophysical measurements of permafrost...
Authors
David M. Rey, Michelle Walvoord, Burke Minsley, Brian A. Ebel, Clifford I. Voss, Kamini Singha
Investigating lake-area dynamics across a permafrost-thaw spectrum using airborne electromagnetic surveys and remote sensing time-series data in Yukon Flats, Alaska Investigating lake-area dynamics across a permafrost-thaw spectrum using airborne electromagnetic surveys and remote sensing time-series data in Yukon Flats, Alaska
Lakes in boreal lowlands cycle carbon and supply an important source of freshwater for wildlife and migratory waterfowl. The abundance and distribution of these lakes are supported, in part, by permafrost distribution, which is subject to change. Relationships between permafrost thaw and lake dynamics remain poorly known in most boreal regions. Here, new airborne electromagnetic (AEM)...
Authors
David M. Rey, Michelle Ann Walvoord, Burke Minsley, Jennifer Rover, Kamini Singha
Airborne electromagnetic imaging of permafrost for hydrologic and infrastructure studies Airborne electromagnetic imaging of permafrost for hydrologic and infrastructure studies
Permafrost is found throughout northern latitudes, and hasfar reaching implications for natural and man-made environments including hydrologic processes, landscape dynamics, ecosystems, and infrastructure. While maps of near-surface permafrost characteristics are available, relatively little is known about permafrost distributions at depth over large areas. Here, we summarize several...
Authors
Burke Minsley, Abraham Emond, David M. Rey, Ronald Daanen