Flying over the fog in route to a USGS hydro station in Shark Slough.
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Fog over the Shark Slough
Flying over the fog in route to a USGS hydro station in Shark Slough.
Sitka Geomagnetic Observatory
Sitka, AK.
Sitka Geomagnetic Observatory
Absolutes and variations buildings at Sitka, AK magnetic observatory.
Absolutes and variations buildings at Sitka, AK magnetic observatory.
Sitka Geomagnetic Observatory
Absolutes building at Sitka magnetic observatory Alaska.
Absolutes building at Sitka magnetic observatory Alaska.
Large Ice Spike
Estimated height of large ice spike is about 7 feet.
Estimated height of large ice spike is about 7 feet.
Creation of Large Ice Spike
Several smaller ice spikes merge to create a large ice spike. Flow is 5.59 cubic feet per second.
Several smaller ice spikes merge to create a large ice spike. Flow is 5.59 cubic feet per second.
Small Ice Mounds
Small ice mounds developed downstream of weir on Apple Creek. Flow is 14.7 cubic feet per second.
Small ice mounds developed downstream of weir on Apple Creek. Flow is 14.7 cubic feet per second.
Black-bird die-off Investigation
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
Black-bird die-off Investigation
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
Black-bird die-off Investigation
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
Black-bird die-off Investigation
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
Black-bird die-off Investigation
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
Black-bird die-off Investigation
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
The carcass of a red-winged blackbird from Beebe, AR is being examined by USGS National Wildlife Health Center wildlife pathologist Dr. David E. Green.
Great Lakes Research Vessel New Construction
Vessel forward module framing looking aft from bow to midship bulkhead.
Vessel forward module framing looking aft from bow to midship bulkhead.
Construction of Keel
Two new additions to the U.S. Geological Survey Great Lakes Science Center's fleet of large research vessels ;are currently being constructed. The two new USGS research vessels will replace the aging vessels on lakes Erie and Ontario.
Two new additions to the U.S. Geological Survey Great Lakes Science Center's fleet of large research vessels ;are currently being constructed. The two new USGS research vessels will replace the aging vessels on lakes Erie and Ontario.
Construction of Bow Section
Two new additions to the U.S. Geological Survey Great Lakes Science Center's fleet of large research vessels are currently being constructed. The two new USGS research vessels will replace the aging vessels on lakes Erie and Ontario.
Two new additions to the U.S. Geological Survey Great Lakes Science Center's fleet of large research vessels are currently being constructed. The two new USGS research vessels will replace the aging vessels on lakes Erie and Ontario.
Cable Pool - Cherryfield
The USGS monitors the Narraguagus River at Cherryfield, Maine at a location called Cable Pool. This spot was once renowned for Atlantic salmon, where anglers would line the banks, waiting their turn to cast a line into the water.
The USGS monitors the Narraguagus River at Cherryfield, Maine at a location called Cable Pool. This spot was once renowned for Atlantic salmon, where anglers would line the banks, waiting their turn to cast a line into the water.
Osprey fledgings thrive in almost all parts of Chesapeake Bay
Osprey fledgings thrive in almost all parts of Chesapeake BayThis seven- to eight-week-old osprey fledgling was photographed in a nest at Poplar Island, Maryland. The island in Chesapeake Bay was used as a control site, where toxic chemical residues were low, in a USGS study of chemical contaminants in Bay ospreys’ food chain.
Osprey fledgings thrive in almost all parts of Chesapeake Bay
Osprey fledgings thrive in almost all parts of Chesapeake BayThis seven- to eight-week-old osprey fledgling was photographed in a nest at Poplar Island, Maryland. The island in Chesapeake Bay was used as a control site, where toxic chemical residues were low, in a USGS study of chemical contaminants in Bay ospreys’ food chain.
Both Vessels in the Construction Building
Two new additions to the U.S. Geological Survey Great Lakes Science Center's fleet of large research vessels are currently being constructed. The two new USGS research vessels will replace the aging vessels on lakes Erie and Ontario.
Two new additions to the U.S. Geological Survey Great Lakes Science Center's fleet of large research vessels are currently being constructed. The two new USGS research vessels will replace the aging vessels on lakes Erie and Ontario.
Iceland Gull
Gulls, such as this Iceland gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.
Gulls, such as this Iceland gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.
Lesser Black-Backed Gull
Gulls, such as this lesser black-backed gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.
Gulls, such as this lesser black-backed gull, play an important role in moving avian flu viruses across the North Atlantic between Europe and North America.