Videos

An underwater video camera was mounted on a Helley-Smith bedload sampler and set on the bottom of the river during a flow of around 32,000 cubic feet per second (bankfull). The video was titled with the GPS coordinates, date, and time.

An underwater video camera was mounted on a Helley-Smith bedload sampler and set on the bottom of the river during a flow of around 32,000 cubic feet per second (bankfull). The video was titled with the GPS coordinates, date, and time.

Part 2 is a clip from the first video, showing the mobilization of cobbles on the bottom of the river's braided reach.

Part one of a three part series on how development can have negative effects on streams in urban and suburban areas.

Part two of a three part series on how development can have negative effects on streams in urban and suburban areas.

Part three of a three part series on how development can have negative effects on streams in urban and suburban areas.

Development can have negative effects on streams in urban and suburban areas.

A New USGS documentary video exploring the world of the mojave desert tortoise

Introduced & discussed by USGS Ecologist Todd Esque & Ken Nussear, Wildlife Biologist 

USGS scientists recount their experiences before, during and after the May 18, 1980 eruption of Mount St. Helens. Loss of their colleague David A. Johnston and 56 others in the eruption cast a pall over one of the most dramatic geologic moments in American history.

The May 18, 1980 eruption of Mount St. Helens triggered a growth in volcano science and volcano monitoring. Five USGS volcano observatories have been established since the eruption. With new technologies and improved awareness of volcanic hazards USGS scientists are helping save lives and property across the planet.

On September 30, 2009 a M7.6 earthquake struck off the west coast of Sumatra, Indonesia, near the cities of Padang and Pariaman, affecting an area with a population of 1.2 million people. The Indonesian government estimates that the earthquake caused 1,195 deaths and significant damage to around 140,000 houses and 4,000 buildings.

Lessons Learned for the San Francisco Bay Area

by USGS Geophysicists, Walter Mooney & Eric Geist 

Urban development is associated with an increase in impervious surfaces, that is, surfaces such as rooftops, sidewalks, and streets that prevent precipitation from infiltrating into the groundwater.  Impervious surfaces increase the volume and energy of stormwater that reaches streams and can lead to adverse physical and water quality impacts, including erosion

In this video excerpt, we see motion from two video surveillance cameras capturing continuous daytime video data on pupfish spawning, and as seen here, other occurrences. The cameras are positioned approximately four feet above the water surface and one underwater.

Using phenology to take the pulse of our planet

By Jake F. Weltzin, Executive Director, USA National Phenology Network

Measuring low flow in the San Pedro River with flume.

This video clip highlights the types of technology being used to research and study the movements of the desert tortoise and how they're using the habitat.

A Scenario of a Massive West Coast Storm

By Dale Cox, Project Manager, USGS Multi-Hazards Demonstration Project

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Part 4 of 4

Part 1 of 4

Part 3 of 4