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Elizabeth Skaggs (Former Employee)

Science and Products

a large curving river flows through a canyon

Integrated River and Riparian Ecosystem Studies

FORT scientists study interactions among river flow, riparian vegetation and channel change at low elevations across the western United States. Cooperators include the National Park Service, Bureau of Land Management, U.S. Fish and Wildlife Service and Bureau of Reclamation. Research areas include reservoir management, control of invasive species, drought response and flood erosion after fires...
By
Ecosystems Mission Area, Land Management Research Program, Fort Collins Science Center
Integrated River and Riparian Ecosystem Studies

Integrated River and Riparian Ecosystem Studies

FORT scientists study interactions among river flow, riparian vegetation and channel change at low elevations across the western United States. Cooperators include the National Park Service, Bureau of Land Management, U.S. Fish and Wildlife Service and Bureau of Reclamation. Research areas include reservoir management, control of invasive species, drought response and flood erosion after fires...
Learn More

Analysis of historic orthomosaic imagery collected through various agencies for mapping active channel and floodplain changes along a 22.5-km reach of the Green River at Gray Canyon near Green River, Utah from 1938-2021 Analysis of historic orthomosaic imagery collected through various agencies for mapping active channel and floodplain changes along a 22.5-km reach of the Green River at Gray Canyon near Green River, Utah from 1938-2021

The U.S. Geological Survey gathered historic aerial photography and remote sensing imagery from a variety of sources for mapping channel change along a 22.5-kilometer reach of the Green River at Gray Canyon near Green River, Utah. Imagery was downloaded in .TIF format and Structure-from-Motion (SfM) photogrammetry techniques were applied (Over et al. 2021) using Agisoft Metashape...
By
Fort Collins Science Center

Elevation change in the watershed of Rito de los Frijoles, Bandelier National Monument, New Mexico from 2010 to 2016 Elevation change in the watershed of Rito de los Frijoles, Bandelier National Monument, New Mexico from 2010 to 2016

Intense precipitation following the June 2011 Las Conchas Fire in the Jemez Mountains, New Mexico, led to widespread debris flows in the watershed of Rito de los Frijoles in Bandelier National Monument. Sediment eroded by these debris flows was transported along Rito de los Frijoles during floods in 2011 and 2013. This dataset contains two tabular files and one raster digital file. The...
By
Fort Collins Science Center

Contrasting long-term trends in channel width and shoreline complexity Contrasting long-term trends in channel width and shoreline complexity

Drought and reservoir management in the Colorado River Watershed have decreased peak flows and sediment loads reducing the ability of rivers to change their channels. Multiple studies have documented the resulting decrease in channel width, but less attention has been paid to long-term trends in shoreline complexity, including the number and size of islands. We used a sequence of aerial
Authors
Elizabeth Rachaelann Skaggs, Jonathan M. Friedman, Christopher Holmquist-Johnson
By
Ecosystems Mission Area, Fort Collins Science Center

Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains, New Mexico, USA Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains, New Mexico, USA

Severe fire on steep slopes increases stormwater runoff and the occurrence of runoff-initiated debris flows. Predicting locations of debris flows and their downstream effects on trunk streams requires watershed-scale high-resolution topographic data. Intense precipitation in July and September 2013 following the June 2011 Las Conchas Fire in the Jemez Mountains, New Mexico, led to...
Authors
Jonathan M. Friedman, Anne C. Tillery, Samuel J. Alfieri, Elizabeth Rachaelann Skaggs, Patrick B. Shafroth, Craig D. Allen
By
Ecosystems Mission Area, Water Resources Mission Area, Fort Collins Science Center, New Mexico Water Science Center, Wildland Fire Science
Fort Collins Science Center hosts the Third Annual Big Rivers Data Integration Workshop

Fort Collins Science Center hosts the Third Annual Big Rivers Data Integration Workshop

The Fort Collins Science Center hosted the Third Annual Big Rivers Data Integration Workshop December 4–5 combining efforts by scientists at FORT...

Read Article
Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains

Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains

In this paper, USGS scientists and contractors documented locations of sediment erosion and deposition in catastrophic debris flows and floods...

Read Article
FORT Hydrologist Jonathan Friedman to co-present research on hydrology of the Green River

FORT Hydrologist Jonathan Friedman to co-present research on hydrology of the Green River

On January 30, Jonathan Friedman (FORT) and Dusty Perkins (NPS) will present research by NPS and FORT scientists (including Chris Holmquist-Johnson...

Read Article
FORT scientists host the second annual Big Rivers Data Integration Workshop

FORT scientists host the second annual Big Rivers Data Integration Workshop

From December 5–6 the Fort Collins Science Center hosted the second annual Big Rivers Data Integration Workshop, combining efforts by scientists at...

Read Article

Science and Products

a large curving river flows through a canyon

Integrated River and Riparian Ecosystem Studies

FORT scientists study interactions among river flow, riparian vegetation and channel change at low elevations across the western United States. Cooperators include the National Park Service, Bureau of Land Management, U.S. Fish and Wildlife Service and Bureau of Reclamation. Research areas include reservoir management, control of invasive species, drought response and flood erosion after fires...
By
Ecosystems Mission Area, Land Management Research Program, Fort Collins Science Center
Integrated River and Riparian Ecosystem Studies

Integrated River and Riparian Ecosystem Studies

FORT scientists study interactions among river flow, riparian vegetation and channel change at low elevations across the western United States. Cooperators include the National Park Service, Bureau of Land Management, U.S. Fish and Wildlife Service and Bureau of Reclamation. Research areas include reservoir management, control of invasive species, drought response and flood erosion after fires...
Learn More

Analysis of historic orthomosaic imagery collected through various agencies for mapping active channel and floodplain changes along a 22.5-km reach of the Green River at Gray Canyon near Green River, Utah from 1938-2021 Analysis of historic orthomosaic imagery collected through various agencies for mapping active channel and floodplain changes along a 22.5-km reach of the Green River at Gray Canyon near Green River, Utah from 1938-2021

The U.S. Geological Survey gathered historic aerial photography and remote sensing imagery from a variety of sources for mapping channel change along a 22.5-kilometer reach of the Green River at Gray Canyon near Green River, Utah. Imagery was downloaded in .TIF format and Structure-from-Motion (SfM) photogrammetry techniques were applied (Over et al. 2021) using Agisoft Metashape...
By
Fort Collins Science Center

Elevation change in the watershed of Rito de los Frijoles, Bandelier National Monument, New Mexico from 2010 to 2016 Elevation change in the watershed of Rito de los Frijoles, Bandelier National Monument, New Mexico from 2010 to 2016

Intense precipitation following the June 2011 Las Conchas Fire in the Jemez Mountains, New Mexico, led to widespread debris flows in the watershed of Rito de los Frijoles in Bandelier National Monument. Sediment eroded by these debris flows was transported along Rito de los Frijoles during floods in 2011 and 2013. This dataset contains two tabular files and one raster digital file. The...
By
Fort Collins Science Center

Contrasting long-term trends in channel width and shoreline complexity Contrasting long-term trends in channel width and shoreline complexity

Drought and reservoir management in the Colorado River Watershed have decreased peak flows and sediment loads reducing the ability of rivers to change their channels. Multiple studies have documented the resulting decrease in channel width, but less attention has been paid to long-term trends in shoreline complexity, including the number and size of islands. We used a sequence of aerial
Authors
Elizabeth Rachaelann Skaggs, Jonathan M. Friedman, Christopher Holmquist-Johnson
By
Ecosystems Mission Area, Fort Collins Science Center

Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains, New Mexico, USA Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains, New Mexico, USA

Severe fire on steep slopes increases stormwater runoff and the occurrence of runoff-initiated debris flows. Predicting locations of debris flows and their downstream effects on trunk streams requires watershed-scale high-resolution topographic data. Intense precipitation in July and September 2013 following the June 2011 Las Conchas Fire in the Jemez Mountains, New Mexico, led to...
Authors
Jonathan M. Friedman, Anne C. Tillery, Samuel J. Alfieri, Elizabeth Rachaelann Skaggs, Patrick B. Shafroth, Craig D. Allen
By
Ecosystems Mission Area, Water Resources Mission Area, Fort Collins Science Center, New Mexico Water Science Center, Wildland Fire Science
Fort Collins Science Center hosts the Third Annual Big Rivers Data Integration Workshop

Fort Collins Science Center hosts the Third Annual Big Rivers Data Integration Workshop

The Fort Collins Science Center hosted the Third Annual Big Rivers Data Integration Workshop December 4–5 combining efforts by scientists at FORT...

Read Article
Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains

Redistribution of debris-flow sediment following severe wildfire and floods in the Jemez Mountains

In this paper, USGS scientists and contractors documented locations of sediment erosion and deposition in catastrophic debris flows and floods...

Read Article
FORT Hydrologist Jonathan Friedman to co-present research on hydrology of the Green River

FORT Hydrologist Jonathan Friedman to co-present research on hydrology of the Green River

On January 30, Jonathan Friedman (FORT) and Dusty Perkins (NPS) will present research by NPS and FORT scientists (including Chris Holmquist-Johnson...

Read Article
FORT scientists host the second annual Big Rivers Data Integration Workshop

FORT scientists host the second annual Big Rivers Data Integration Workshop

From December 5–6 the Fort Collins Science Center hosted the second annual Big Rivers Data Integration Workshop, combining efforts by scientists at...

Read Article
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