Washington Water Science Center

Multimedia

Filter Total Items: 12
April 12, 2017

Using a Continuous Flow Centrifuge to Collect Suspended Sediment

Kathy Conn, a U.S. Geological Survey Water Quality Specialist, demonstrates a new USGS field method using a continuous flow centrifuge to collect suspended sediment from large volumes of water in the Duwamish River near Seattle Washington.
 

Scientist standing in streamgaging platform hanging over a river.
March 23, 2017

Measuring the Colville River at Kettle Falls, WA

USGS Hydrologic Technician Kim Cesal measuring 3170 cfs at 12409000 Colville River at Kettle Falls, WA. This measurement is the highest made at the gaging site. The gage has been in operation since October 1922. The gage was installed to monitor flows from Meyer Falls Dam and Power Generation.

Centrifuge Bowl Containing River Suspended Sediment
February 5, 2015

Centrifuge Bowl Containing River Suspended Sediment for Analysis

A U.S. Geological Survey hydrologist holds a centrifuge bowl containing river suspended sediment for analysis of metals and organic chemicals. The sample was collected using a new in-field continuous-flow centrifugation technique to separate and collect suspended sediment from large volumes of water. The sample was collected on the Duwamish River, Washington in cooperation

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A muddy river in the background flows into a clear river in the foreground.
August 31, 2014

The confluence of the Suiattle River (muddy river) into the Sauk River

The confluence of the Suiattle River (muddy river) into the Sauk River. 

View from the sky looking inland at a river mouth that is flowing into open waters heavily laden with sediment in contrast.
April 14, 2012

Turbid Coastal Plume of the Elwha River, Washington

The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume.  This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river.  Two large dams on the Elwha River are being incrementally removed from 2011 to

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View from the sky looking seaward over a river mouth that is dumping large volumes of sediment and creating a delta.
April 14, 2012

Turbid Coastal Plume of the Elwha River, Washington

The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume.  This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river.  Two large dams on the Elwha River were incrementally removed from 2011 to 2014 to

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View from the sky looking inland at a river mouth that is flowing into open waters heavily laden with sediment in contrast.
April 14, 2012

Turbid Coastal Plume of the Elwha River, Washington

The turbid waters of the Elwha River and the coastal waters of the Strait of Juan de Fuca mix directly offshore of the river mouth, forming a large coastal plume.  This plume is easily identified by the cloudiness of the water (or "turbidity") resulting from sediment discharged by the river.  Two large dams on the Elwha River were incrementally removed from 2011 to 2014 to

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October 27, 2011

White Salmon River Riverine Dune Formation/Destruction

Following the Condit Dam removal, a significant amount of bedload sediment was transported downstream. As the material moved along the river bottom, dunes began to form then collapse. This dune formation is seen through the waveform action as the stream's normal laminar flow is replaced by whitecap wave forms before returning, once again, to laminar flow.

Beautiful River with Mount Rainier in the background
October 27, 2010

Washington River

Beautiful River with Mount Rainier in the background

Looking upstream

Elwha River Sediment Monitoring - Looking Upstream

Looking upstream from the water supply diversion structure on the lower Elwha River. Image updated every 15 minutes.

view from cam

Elwha River Sediment Monitoring - Downstream

Looking downstream from the diversion structure with channel weir in the foreground. Image updates every 15 minutes.

Elwha River Sediment Monitoring - Web Cams

USGS Web cam images of the lower Elwha River, updated every 15 minutes.