Scientist measures the profile of a tidal creek at low tide. Note main Shark River off to the right side of photo.
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Scientist measures the profile of a tidal creek at low tide. Note main Shark River off to the right side of photo.
Employee uses a Flowtracker to measure cross-sectional profile of a rivulet draining a mangrove forest.
Employee uses a Flowtracker to measure cross-sectional profile of a rivulet draining a mangrove forest.
Scientist raised the engine to navigate a tidal creek at low tide. Note freeze damage to mangroves in the background.
Scientist raised the engine to navigate a tidal creek at low tide. Note freeze damage to mangroves in the background.
Scientists set up to measure flow from a mangrove forest.
Scientists set up to measure flow from a mangrove forest.
Scientist measures the profile of a tidal creek at low tide. Note mudflat in background.
Scientist measures the profile of a tidal creek at low tide. Note mudflat in background.
Conducting a reconnaissance of a salt marsh-lined tidal creek.
Conducting a reconnaissance of a salt marsh-lined tidal creek.
Alicia Torregrosa is downloading data from a phenocam on BLM land in Idaho.
Alicia Torregrosa is downloading data from a phenocam on BLM land in Idaho.
Collection Of Sediment And Water Sampling Prior To The Possible Occurrence Of Oil Contamination From The Deepwater Horizon Oil Well At Egmont Key, Florida
linkBruce Bernard (left) and Scott McBride (right) obtain water and sediment samples at Egmont Key which is about 1 mile west of the mouth of Tampa Bay in the Gulf of Mexico. Samples were collected June 14, 2010 prior to the possible occurrence of oil contamination from the Deepwater Horizon's oil well.
Collection Of Sediment And Water Sampling Prior To The Possible Occurrence Of Oil Contamination From The Deepwater Horizon Oil Well At Egmont Key, Florida
linkBruce Bernard (left) and Scott McBride (right) obtain water and sediment samples at Egmont Key which is about 1 mile west of the mouth of Tampa Bay in the Gulf of Mexico. Samples were collected June 14, 2010 prior to the possible occurrence of oil contamination from the Deepwater Horizon's oil well.
This picture was taken during sediment coring field work for a project evaluating atmospheric loading of nutrients to high alpine lakes.
This picture was taken during sediment coring field work for a project evaluating atmospheric loading of nutrients to high alpine lakes.
Sunrise on an evapotranspiration-monitoring site in a riparian grassland along the Platte River, Nebraska on September 25, 2007.
Sunrise on an evapotranspiration-monitoring site in a riparian grassland along the Platte River, Nebraska on September 25, 2007.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
Great Lakes water availability studies conducted by the U.S. Geological Survey aim to help characterize how much water the Basin has now, how water availability is changing, and how much water it can expect to have in the future.
A lower Columbia River estuary tour on a USGS research vessel with NWA Deputy REx and WFRC Director.
A lower Columbia River estuary tour on a USGS research vessel with NWA Deputy REx and WFRC Director.
The Souris River at Westhope, North Dakota. The top photos taken on April 26, 1970, with a discharge of 1,110 cfs. And the bottom photo taken on April 19, 2011, with a discharge of 13,300 cfs and a gage height of 19.82 feet.
The Souris River at Westhope, North Dakota. The top photos taken on April 26, 1970, with a discharge of 1,110 cfs. And the bottom photo taken on April 19, 2011, with a discharge of 13,300 cfs and a gage height of 19.82 feet.
The Little Missouri River at Medora, North Dakota. Top photo taken by a USGS personnel in March of 1972, while the Little Missouri River was flooding the camp sites at Medora, ND. The bottom photo was taken by USGS Colton Rupp on May 24, 2011, with a discharge of 32,000 cfs and a gage height of 19.42 feet.
The Little Missouri River at Medora, North Dakota. Top photo taken by a USGS personnel in March of 1972, while the Little Missouri River was flooding the camp sites at Medora, ND. The bottom photo was taken by USGS Colton Rupp on May 24, 2011, with a discharge of 32,000 cfs and a gage height of 19.42 feet.
Stream in Great Smoky Mountains National Park.
Stream in Great Smoky Mountains National Park.
Stream near Pocosin weather station site, Shenandoah National Park.
Stream near Pocosin weather station site, Shenandoah National Park.
Honeycomb weathering of sandstone located on the shores of Puget Sound occurs when expanding salt crystals break fragments of rock, creating a small hole that becomes larger as the process repeats itself over time.
Honeycomb weathering of sandstone located on the shores of Puget Sound occurs when expanding salt crystals break fragments of rock, creating a small hole that becomes larger as the process repeats itself over time.