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Image: Assessing the Health of a Sugar Pine in California

Assessing the Health of a Sugar Pine in California

USGS biologists assess the health of a sugar pine, one of tens of  thousands of individual trees whose fates have been tracked annually throughout the drought in California.

A view from atop a building looking at the sandy beach, waves, and ocean.

Cowells Beach Webcam Snapshot

Video camera snapshot at Cowells Beach in Santa Cruz, California, looking southward. Learn more about the cameras and how we're using them to study coastal change.

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Image of the front page of Sound Waves, March 2011
March 22, 2019

Sound Waves, March 2011

The stories in the March 2011 issue of Sound Waves:

https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2011/03/

Japan Lashed by Powerful Earthquake, Devastating Tsunami

Long-Lived, Slow-Growing Corals in Deep Waters of the Gulf of Mexico

Image of ten minutes of video that highlights the brightest pixel values in the video, like the wave froth on the beach.

Sunset State Beach Video Camera 1 Bright Image

Bright image from video camera along Sunset State Beach in Watsonville, CA, looking northwest. This bright image shows the brightest pixel values throughout a 10-minute video sequence. Learn more about the cameras and how we're using them to study coastal change

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Top of the basalt columns showing the classical hexagonal shapes, f...

Top of the basalt columns showing the classical hexagonal shapes, f...

These glacial striations are carved in the top of a columnar-jointed basalt lava flow. The lava flow was erupted between 200,000 and 100,000 years ago in the Middle Fork of the San Joaquin River valley. The lava flow was then eroded during subsequent glacial periods, as shown by the finely polished and deeply striated surface.

Wes Hildreth at Long Valley Caldera...

Wes Hildreth at Long Valley Caldera

Wes Hildreth is an expert when it comes to studying the Long Valley Caldera. Here, he is standing on Tertiary basalt lava flows on the north rim of the caldera, view to the southeast with Lake Crowley visible in the center of the caldera, and McGee Mountain above the lake on the skyline.

View from a building top looking down on a sandy beach with beachgoers, pier extending into water, amusement park in background.

Santa Cruz Main Beach video camera 1 snapshot

Video camera snapshot overlooking Main Beach in Santa Cruz, California, looking eastward. Learn more about the cameras and how we're using them to study coastal change.

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Tree Kill Area near Horseshoe Lake at Mammoth Mountain where carbon...

Tree Kill Area near Horseshoe Lake at Mammoth Mountain where carbon...

Tree Kill Area near Horseshoe Lake at Mammoth Mountain where carbon dioxide in the soil is suffocates the trees.

Camera 1, Santa Cruz, California Main Beach time-averaged image from video camera looking at the sandy beach, pier, and ocean.

Santa Cruz Main Beach Webcam Time-Averaged Image

Video camera time-exposure image at Main Beach in Santa Cruz, California, looking eastward. Learn more about the cameras and how we're using them to study coastal change.

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