Videos

Ice Out 2015 on the Kennebec River in Augusta, Maine.

This video demonstrates how to develop multiple offset surface-water rating curves using GRSAT.

This video show how use offsets when developing ratings in GRSAT.

This video discusses the basic field review procedures for midsection ADCP data collected in SonTek RiverSurveyor Stationary Live. Note: Use of trade names is for descriptive purposes only, and does not imply endorsement by the USGS.

by Andrea Foster, USGS Research Geologist & Christopher Kim, Associate Professor, Chapman University

USGS revolutionizes data collection by surveying a river channel within the Redlands area using a drone.

This webinar was conducted on March 10, 2015 as a part of the Climate Change Science and Management Webinar Series, co-hosted by the USGS National Climate Change and Wildlife Science Center and the USFWS National Conservation Training Center. Webinar Summary: Bull trout is the most cold-adapted fish in freshwaters of the Pacific Northwest.

USGS will describe the occurrence of contaminants in groundwater, how natural features and human activities can affect groundwater quality, and how models are being used to predict contaminant concentrations in unmonitored areas and inform water-resource management decisions.

by Amy East USGS Research Geologist

• Hear about river response to the largest dam removal in history.
• Causing disturbance as a means of restoration: how well does it work?
• Will legendary salmon runs return?

This short clip was made by attaching a GoPro camera to an acoustic Doppler current profiler. The clips shows USGS streamgage station 12304500, Yaak River near Troy, MT, and a hydrographer on the cableway using the ADCP to measure streamflow.

On February 26, Nick Stasulis and Charlie Culbertson visited USGS station 01054200 Wild River at Gilead, Maine to make a streamflow measurement through the ice. For these measurements, 20-30 holes are drilled through the ice and a current meter (the spinning yellow cups) is used to measure velocity. River depths and distance across the channel are also measured.

The Field Hydrology Class from the University of Arizona learns how to take a discharge measurement with USGS Hydrologist.

A large destructive landslide occurred near Oso, Washington on March 22, 2014. Computer simulations indicate that it could have behaved very differently (with much less mobility and consequent destructiveness) if the ground had been less porous and water-saturated. This video shows the results of two computer simulations.

Shaking at a site may be increased, or amplified, by focusing of seismic energy caused by the materials in basins or by surface topography such as mountains.

An asperity is an area on a fault that is stuck. The earthquake rupture usually begins at an asperity.

When you throw a pebble in a pond, it makes waves on the surface that move out from the place where the pebble entered the water. The waves are largest where they are formed and gradually get smaller as they move away. This decrease in size, or amplitude, of the waves is called attenuation.

Imagery from temperature-sensing cameras showing bats in hibernation. This new footage suggests that bats who warm up from hibernation together throughout the winter may be better at surviving white nose syndrome, a disease caused by a cold-loving fungus ravaging insect-eating bat populations in the United States and Canada.

A thrust fault that does not rupture all the way up to the surface so there is no evidence of it on the ground. It is buried under the uppermost layers of rock in the crust.

Volcano gas geochemistry has been around for a long time. Scientists can make gas measurements using very large, very expensive Correlation Spectrometers or collect samples in the field and bring them back for analysis in the lab. But it’s possible we’re missing out on a lot of information because our monitoring capabilities don’t include continuous observation.

Directivity is an effect of a fault rupturing whereby earthquake ground motion in the direction of rupture propagation is more severe than that in other directions from the earthquake source.

A divergent boundary is where two adjacent tectonic plates are moving away from each other.