Row of lab bubblers sample purging prior to analysis
Row of lab bubblers sample purging prior to analysisRow of lab bubblers sample purging prior to analysis at the Mercury Research Laboratory in Middleton, WI.
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Row of lab bubblers sample purging prior to analysis
Row of lab bubblers sample purging prior to analysis
Row of lab bubblers sample purging prior to analysisRow of lab bubblers sample purging prior to analysis at the Mercury Research Laboratory in Middleton, WI.
Methylmercury photodecomposition experiment on the roof of building
Methylmercury photodecomposition experiment on the roof of buildingMethylmercury photodecomposition experiment on the roof of USGS building in Middleton, WI.
Methylmercury photodecomposition experiment on the roof of building
Methylmercury photodecomposition experiment on the roof of buildingMethylmercury photodecomposition experiment on the roof of USGS building in Middleton, WI.
Erie pier pond in the Saint Louis River estuary in Duluth, MN
Erie pier pond in the Saint Louis River estuary in Duluth, MNErie pier pond in the Saint Louis River estuary in Duluth, MN.
Erie pier pond in the Saint Louis River estuary in Duluth, MN
Erie pier pond in the Saint Louis River estuary in Duluth, MNErie pier pond in the Saint Louis River estuary in Duluth, MN.
Wild celery in Pool 13 of the Upper Mississippi River
Wild celery in Pool 13 of the Upper Mississippi RiverWild celery (Vallisneria americana) within lower Pool 13 of the Upper Mississippi River.
Prevalence of submersed aquatic vegetation, especially wild celery, increased from 1998 to 2008 but has since declined in Pool 13.
Wild celery in Pool 13 of the Upper Mississippi River
Wild celery in Pool 13 of the Upper Mississippi RiverWild celery (Vallisneria americana) within lower Pool 13 of the Upper Mississippi River.
Prevalence of submersed aquatic vegetation, especially wild celery, increased from 1998 to 2008 but has since declined in Pool 13.
USGS scientist measuring sediment pH
USGS scientist measuring sediment pH in a sample taken from a tributary of the Maumee River in Ohio
USGS scientist measuring sediment pH in a sample taken from a tributary of the Maumee River in Ohio
Assessing soil sampling locations at the Badger Army Ammunition Plant
Assessing soil sampling locations at the Badger Army Ammunition PlantScientist in field assessing soil sampling locations at the Badger Army Ammunition Plant site in Sauk County, WI.
Assessing soil sampling locations at the Badger Army Ammunition Plant
Assessing soil sampling locations at the Badger Army Ammunition PlantScientist in field assessing soil sampling locations at the Badger Army Ammunition Plant site in Sauk County, WI.
Mobile water isotope collection on shore of Mobile River, Alabama
Mobile water isotope collection on shore of Mobile River, AlabamaScientists collecting water samples for mercury isotope analysis in the Mobile River, Alabama.
Mobile water isotope collection on shore of Mobile River, Alabama
Mobile water isotope collection on shore of Mobile River, AlabamaScientists collecting water samples for mercury isotope analysis in the Mobile River, Alabama.
New Gulf of Mexico network speeds USGS hurricane preparations
New Gulf of Mexico network speeds USGS hurricane preparationsEach one these blue dots represents a site where a storm-tide sensor bracket has been installed for the Gulf of Mexico pre-defined network. There are currently 85 brackets in Florida, 6 in Alabama, 3 in Mississippi, 18 in Louisiana and 26 in Texas, for a total of 138 bracketed sites. (Not all brackets will be used in all storms.)
New Gulf of Mexico network speeds USGS hurricane preparations
New Gulf of Mexico network speeds USGS hurricane preparationsEach one these blue dots represents a site where a storm-tide sensor bracket has been installed for the Gulf of Mexico pre-defined network. There are currently 85 brackets in Florida, 6 in Alabama, 3 in Mississippi, 18 in Louisiana and 26 in Texas, for a total of 138 bracketed sites. (Not all brackets will be used in all storms.)
Panoramic view of scientists in boat on Hells Canyon Reservoir
Panoramic view of scientists in boat on Hells Canyon ReservoirPanoramic view of scientists in boat on Hells Canyon Reservoir, Idaho
Panoramic view of scientists in boat on Hells Canyon Reservoir
Panoramic view of scientists in boat on Hells Canyon ReservoirPanoramic view of scientists in boat on Hells Canyon Reservoir, Idaho
Anderson Ranch Reservoir Idaho boat launch
Scenic view while preparing to launch boats at Anderson Ranch, at the Anderson Reservoir, Idaho.
Scenic view while preparing to launch boats at Anderson Ranch, at the Anderson Reservoir, Idaho.
Particulate matter captured on a quartz fiber filter
Particulate matter captured on a quartz fiber filterParticulate matter captured on a quartz fiber filter at the Mercury Research Laboratory.
Particulate matter captured on a quartz fiber filter
Particulate matter captured on a quartz fiber filterParticulate matter captured on a quartz fiber filter at the Mercury Research Laboratory.
Native birds resting on marker buoys in Brownlee Reservoir, Idaho
Native birds resting on marker buoys in Brownlee Reservoir, IdahoNative birds resting on marker buoys in Brownlee Reservoir, Idaho.
Native birds resting on marker buoys in Brownlee Reservoir, Idaho
Native birds resting on marker buoys in Brownlee Reservoir, IdahoNative birds resting on marker buoys in Brownlee Reservoir, Idaho.
Draining overlying water from sedimentation sampler
Draining overlying water from sedimentation samplerDraining overlying water from sedimentation sampler at Brownlee Reservoir, Idaho.
Draining overlying water from sedimentation sampler
Draining overlying water from sedimentation samplerDraining overlying water from sedimentation sampler at Brownlee Reservoir, Idaho.
Bull moose at Isle Royale National Park.
Bull moose (Alces alces) browsing within Isle Royale National Park.
Bull moose (Alces alces) browsing within Isle Royale National Park.
Monarch on Joe Pyeweed plant
Monarch butterfly on a Joe Pyeweed plant.
Monarch butterfly on a Joe Pyeweed plant.
Monarch on hairy puccoon
A monarch butterfly on a hairy puccoon plant.
A monarch butterfly on a hairy puccoon plant.
Scenic landscape from Hells Canyon Reservoir, Idaho
Scenic landscape from Hells Canyon Reservoir, IdahoScenic landscape from Hells Canyon Reservoir, Idaho
Scenic landscape from Hells Canyon Reservoir, Idaho
Scenic landscape from Hells Canyon Reservoir, IdahoScenic landscape from Hells Canyon Reservoir, Idaho
Looking downstream onto Hells Canyon Reservoir
The Snake River is the largest tributary of the Columbia River. It drains over 108,000 square miles in mainly Idaho and portions of Montana, Nevada, Oregon, Washington, and Wyoming. The climate of much of the Snake River watershed is arid or semi-arid and spring snowmelt contributes substantially to the river’s flow.
The Snake River is the largest tributary of the Columbia River. It drains over 108,000 square miles in mainly Idaho and portions of Montana, Nevada, Oregon, Washington, and Wyoming. The climate of much of the Snake River watershed is arid or semi-arid and spring snowmelt contributes substantially to the river’s flow.
Air sampler overlooking Boston
Mercury isotope air sampler deployed in Boston, MA.
Mercury isotope air sampler deployed in Boston, MA.
Turbid glacial runoff in Lake Clark National Park, Alaska
Turbid glacial runoff in Lake Clark National Park, AlaskaTurbid glacial runoff in roaring river, surrounded by mountains in Lake Clark National Park, Alaska.
Turbid glacial runoff in Lake Clark National Park, Alaska
Turbid glacial runoff in Lake Clark National Park, AlaskaTurbid glacial runoff in roaring river, surrounded by mountains in Lake Clark National Park, Alaska.
Point count survey near Wabesha, Minnesota
Jules Teskie paddling in to do a point count survey near Wabesha, Minnesota (Pool 4)
Jules Teskie paddling in to do a point count survey near Wabesha, Minnesota (Pool 4)