Heterosigma akashiwo collected from Seaplane Lagoon in San Francisco Bay on August 9, 2022. Video was taken with an ioLight 1mm microscope.
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Heterosigma akashiwo collected from Seaplane Lagoon in San Francisco Bay
Heterosigma akashiwo collected from Seaplane Lagoon in San Francisco Bay on August 9, 2022. Video was taken with an ioLight 1mm microscope.
High flow at USGS streamgage 11172945 on Alameda Creek, California
High flows at streamgage 11172945 (Alameda Creek above Div Dam near Sunol, California) were captured by USGS hydrologic technician Louis Cannarozzi on 12/31/2022. Heavy precipitation caused higher-than-normal streamflow in many areas as an atmospheric river moved through northern California.
High flows at streamgage 11172945 (Alameda Creek above Div Dam near Sunol, California) were captured by USGS hydrologic technician Louis Cannarozzi on 12/31/2022. Heavy precipitation caused higher-than-normal streamflow in many areas as an atmospheric river moved through northern California.
How USGS Streamgages Work
This video explains how streamgages are used to measure the height and flow, or speed, of streams. By monitoring the height and flow of streams, the people who manage water infrastructure can have advanced noted of when the water is rising and how fast it’s coming.
This video explains how streamgages are used to measure the height and flow, or speed, of streams. By monitoring the height and flow of streams, the people who manage water infrastructure can have advanced noted of when the water is rising and how fast it’s coming.
USGS Scientists Collect Water Quality Samples in the San Francisco Bay
USGS scientists collect water quality samples in the San Francisco Bay. The samples have been collected at the same locations for >50 years and are part of one of the longest running datasets of its kind in the United States.
USGS scientists collect water quality samples in the San Francisco Bay. The samples have been collected at the same locations for >50 years and are part of one of the longest running datasets of its kind in the United States.
Conventional Level Data Management
This video describes how to use the SAC conversion spreadsheet to convert data from a conventional level in angles and distances (polar coordinates) to Cartesian coordinates (northings and eastings).
This video describes how to use the SAC conversion spreadsheet to convert data from a conventional level in angles and distances (polar coordinates) to Cartesian coordinates (northings and eastings).
PubTalk 3/2019 - Land Subsidence
Title: Land Subsidence: The Lowdown on the Draw-down
The link between groundwater use and sinking landscapes
Title: Land Subsidence: The Lowdown on the Draw-down
The link between groundwater use and sinking landscapes
PubTalk 7/2018— Extreme acid mine drainage at Iron Mountain California
Title: Iron Mountain, California: An Extreme Acid Mine Drainage Environment
Title: Iron Mountain, California: An Extreme Acid Mine Drainage Environment
Alluvial Thickness Model, Yucaipa area, California
To help visualize the Yucaipa groundwater basin geometry, this animation of the elevation of the top of the basement rocks was created.
To help visualize the Yucaipa groundwater basin geometry, this animation of the elevation of the top of the basement rocks was created.