USGS research vessel with Teledyne Odom Hydrographic ES3PT–M integrated multibeam echo sounder and motion sensor submerged on the port side, and Trimble SPS461 GPS receivers mounted on each side of vessel.
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Explore our planet through photography and imagery, including climate change and water all the way back to the 1800s when the USGS was surveying the country by horse and buggy.
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USGS personnel collecting bathymetry data.
USGS research vessel with Teledyne Odom Hydrographic ES3PT–M integrated multibeam echo sounder and motion sensor submerged on the port side, and Trimble SPS461 GPS receivers mounted on each side of vessel.
Senegal savannah - 1994
A savannah south of Kaffrine in central Senegal, photographed in 1994 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan photographed the scene again in 2013.
A savannah south of Kaffrine in central Senegal, photographed in 1994 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan photographed the scene again in 2013.
Senegal savannah - 2010
A savannah south of Kaffrine in central Senegal, photographed in 2010 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan had previously photographed the scene in 1994.
A savannah south of Kaffrine in central Senegal, photographed in 2010 by U.S. Geological Survey Scientist G. Gray Tappan as part of his work on West African land cover. Tappan had previously photographed the scene in 1994.
USGS scientist deploys seepage meter
Did you know that most streams in the United States have groundwater flowing into them at least part of the time? Contribution of groundwater to total streamflow varies widely among streams but can have a significant affect on water quality and (or) volume.
Did you know that most streams in the United States have groundwater flowing into them at least part of the time? Contribution of groundwater to total streamflow varies widely among streams but can have a significant affect on water quality and (or) volume.
Farm in northeast Iowa
A corn farm in northeast Iowa. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
A corn farm in northeast Iowa. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Farm in southern Wisconsin
Cows feed on a farm in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Cows feed on a farm in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Farm in southern Wisconsin
An irrigation system waters crops in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
An irrigation system waters crops in southern Wisconsin. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
Small stream in northern Indiana
A small stream flows through corn fields in northern Indiana. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
A small stream flows through corn fields in northern Indiana. A new USGS report shows that drought periods followed by rainfall caused nitrate levels to increase to the highest ever measured in some Midwest streams during a 2013 study.
USGS scientist getting ready to measure discharge (flow)
In this photo the USGS scientist is getting ready to measure discharge (flow) in the same stream as above (from New York Branch, Iowa), but after a rainfall event.
In this photo the USGS scientist is getting ready to measure discharge (flow) in the same stream as above (from New York Branch, Iowa), but after a rainfall event.
2016 Fairweather Fault research crew commute
The field crew trekked miles daily to reach their research sites.
The field crew trekked miles daily to reach their research sites.
2016 Fairweather Fault trenching
The team’s work included excavating trenches across the fault to examine layers of sediment.
The team’s work included excavating trenches across the fault to examine layers of sediment.
Alaska field crew next to a trench
The field crew studies various areas thoughout the fault.
The field crew studies various areas thoughout the fault.
Alaska field team
The field team included USGS geologists Rob Witter, Adrian Bender, Chris DuRoss, Peter Haeussler, Richard Lease and Kate Scharer
The field team included USGS geologists Rob Witter, Adrian Bender, Chris DuRoss, Peter Haeussler, Richard Lease and Kate Scharer
Alaska field team revisit Tocher's 1958 site
The field team revisited many of the same locations geologists Don Tocher and Don Miller studied in 1958.
The field team revisited many of the same locations geologists Don Tocher and Don Miller studied in 1958.
Alaska field team walking to sample site
The field crew walked miles daily to research the Fairweather fault and surrounding areas.
The field crew walked miles daily to research the Fairweather fault and surrounding areas.
Fairweather Fault
USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.
USGS research geologist Kate Scharer with her finger on the Fairweather Fault in southeast Alaska. The magnitude 7.8 Lituya Bay earthquake caused shaking that toppled trees along the fault, which left a break in the forest shown here.
Fairweather fault lidar
Fairweather fault lidar
Glacier Bay National Park
View of Glacier Bay National Park from the air.
View of Glacier Bay National Park from the air.
Glacier Bay National Park
Trench site along the southern Fairweather Fault, in Glacier Bay National Park, Alaska. The alluvial fan at left consists of lake, stream channel and debris flow deposits impounded by the Fairweather Fault scarp, at right.
Trench site along the southern Fairweather Fault, in Glacier Bay National Park, Alaska. The alluvial fan at left consists of lake, stream channel and debris flow deposits impounded by the Fairweather Fault scarp, at right.
New technology furthers Fairweather fault research
Scientists use current technology to further Fairweather Fault research.
Scientists use current technology to further Fairweather Fault research.
South Crillon Glacier
Periodic calving of ice from the snout of South Crillon Glacier.
Periodic calving of ice from the snout of South Crillon Glacier.