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Surface water / groundwater interactions; hyporheic zone hydrology and biogeochemistry; carbon, nitrogen, and phosphorus cycling; flow above / through frozen ground; preferential flow and soil pipe formation and transport.
A misty morning in the headwaters of the Akillik River, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that is rapidly warming.
A misty morning in the headwaters of the Akillik River, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that is rapidly warming.
A small stream meanders through ice-rich polygonal ground in the Cutler River Basin, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that
A small stream meanders through ice-rich polygonal ground in the Cutler River Basin, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that
Hiking up a stream from the Akilik River drainage to set minnow traps for fish sampling. This is a stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park.
Hiking up a stream from the Akilik River drainage to set minnow traps for fish sampling. This is a stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park.
A flooding stream meanders through a permafrost landscape in Kobuk Valley National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region
A flooding stream meanders through a permafrost landscape in Kobuk Valley National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region
The Agashashok River and Asik watershed
The Agashashok River and Asik watershed
Example of thawing landscapes and thermokarst at our field sites
Example of thawing landscapes and thermokarst at our field sites
Brian Ebel pours a dye tracer into a pit to observe how water moves through soils on a burned hillslope.
Brian Ebel pours a dye tracer into a pit to observe how water moves through soils on a burned hillslope.
The north fork of the Agashashok River
The north fork of the Agashashok River
The majestic Brooks Range in Gates of the Arctic National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks.
The majestic Brooks Range in Gates of the Arctic National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks.
A high alpine tributary of the Agashashok River.
A high alpine tributary of the Agashashok River.
Ryan collects water chemistry samples during a subsurface tracer experiment while Matt observes.
Ryan collects water chemistry samples during a subsurface tracer experiment while Matt observes.
Meanders on the Agashashok River
Meanders on the Agashashok River
A tributary at the arctic-boreal transition in the Agashashok River Watershed
A tributary at the arctic-boreal transition in the Agashashok River Watershed
Wetlands in the Goose Creek watershed.
Wetlands in the Goose Creek watershed.
Goose Creek Watershed
The open black spruce forest of the West Twin Creek catchment with Table Top Mountain in the background
The open black spruce forest of the West Twin Creek catchment with Table Top Mountain in the background
Historically, the coastal plain of Alaska has been characterized by cloudy or foggy conditions, with only limited summer rain. However, with increasing air temperatures, convective storms are becoming increasingly common.
Historically, the coastal plain of Alaska has been characterized by cloudy or foggy conditions, with only limited summer rain. However, with increasing air temperatures, convective storms are becoming increasingly common.
A degrading trough network on the Arctic Coastal Plain.
A degrading trough network on the Arctic Coastal Plain.
Thawing ice wedges create ponds on the Arctic Coastal Plain. The shape of these ponds influences how their water levels and nutrient concentrations change over the year. These variables in turn influence pond ecosystems and use by waterbirds.
Thawing ice wedges create ponds on the Arctic Coastal Plain. The shape of these ponds influences how their water levels and nutrient concentrations change over the year. These variables in turn influence pond ecosystems and use by waterbirds.
Table Top Mountain and the West Twin Creek catchment.
Table Top Mountain and the West Twin Creek catchment.
Colin and Colby use ground penetrating radar to measure the depth to ground ice in the watershed
Colin and Colby use ground penetrating radar to measure the depth to ground ice in the watershed
A misty morning in the headwaters of the Akillik River, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that is rapidly warming.
A misty morning in the headwaters of the Akillik River, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that is rapidly warming.
A small stream meanders through ice-rich polygonal ground in the Cutler River Basin, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that
A small stream meanders through ice-rich polygonal ground in the Cutler River Basin, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region that
Hiking up a stream from the Akilik River drainage to set minnow traps for fish sampling. This is a stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park.
Hiking up a stream from the Akilik River drainage to set minnow traps for fish sampling. This is a stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park.
A flooding stream meanders through a permafrost landscape in Kobuk Valley National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region
A flooding stream meanders through a permafrost landscape in Kobuk Valley National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks because they lie in a region
The Agashashok River and Asik watershed
The Agashashok River and Asik watershed
Example of thawing landscapes and thermokarst at our field sites
Example of thawing landscapes and thermokarst at our field sites
Brian Ebel pours a dye tracer into a pit to observe how water moves through soils on a burned hillslope.
Brian Ebel pours a dye tracer into a pit to observe how water moves through soils on a burned hillslope.
The north fork of the Agashashok River
The north fork of the Agashashok River
The majestic Brooks Range in Gates of the Arctic National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks.
The majestic Brooks Range in Gates of the Arctic National Park, Alaska. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Network Parks.
A high alpine tributary of the Agashashok River.
A high alpine tributary of the Agashashok River.
Ryan collects water chemistry samples during a subsurface tracer experiment while Matt observes.
Ryan collects water chemistry samples during a subsurface tracer experiment while Matt observes.
Meanders on the Agashashok River
Meanders on the Agashashok River
A tributary at the arctic-boreal transition in the Agashashok River Watershed
A tributary at the arctic-boreal transition in the Agashashok River Watershed
Wetlands in the Goose Creek watershed.
Wetlands in the Goose Creek watershed.
Goose Creek Watershed
The open black spruce forest of the West Twin Creek catchment with Table Top Mountain in the background
The open black spruce forest of the West Twin Creek catchment with Table Top Mountain in the background
Historically, the coastal plain of Alaska has been characterized by cloudy or foggy conditions, with only limited summer rain. However, with increasing air temperatures, convective storms are becoming increasingly common.
Historically, the coastal plain of Alaska has been characterized by cloudy or foggy conditions, with only limited summer rain. However, with increasing air temperatures, convective storms are becoming increasingly common.
A degrading trough network on the Arctic Coastal Plain.
A degrading trough network on the Arctic Coastal Plain.
Thawing ice wedges create ponds on the Arctic Coastal Plain. The shape of these ponds influences how their water levels and nutrient concentrations change over the year. These variables in turn influence pond ecosystems and use by waterbirds.
Thawing ice wedges create ponds on the Arctic Coastal Plain. The shape of these ponds influences how their water levels and nutrient concentrations change over the year. These variables in turn influence pond ecosystems and use by waterbirds.
Table Top Mountain and the West Twin Creek catchment.
Table Top Mountain and the West Twin Creek catchment.
Colin and Colby use ground penetrating radar to measure the depth to ground ice in the watershed
Colin and Colby use ground penetrating radar to measure the depth to ground ice in the watershed
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government