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California

Kelp in Monterey Bay, Calif., is seen from below the water surface
Posted inResearch Spotlights

Acidifying Oceans Could Get Help from Kelp

Elizabeth Thompson by Elizabeth Thompson 30 November 202014 December 2023

Forests of fast-growing kelp influence the chemistry of the water in which they live. A new study evaluates their potential to ameliorate ocean acidification in sensitive coastal ecosystems.

Plot showing average temperature change over California caused by reductions in airborne particle concentrations
Posted inEditors' Highlights

Comparing Impacts of CO2 and Particle Emission Reductions

by Lynn Russell 11 November 202014 February 2023

Black carbon contained in airborne particles is often cited as a major factor warming the climate, but how much can California reduce climate change through reducing airborne particle concentrations?

Small conifers grow along the edge of an open grassy meadow along the John Muir Trail.
Posted inFeatures

Traversing the High Sierra on the People’s Paths

Mary Caperton Morton, Science Writer by Mary Caperton Morton 2 November 20203 November 2022

Living in Geologic Time: Backpacking through the past, present, and future of fire on the John Muir Trail.

A USGS research team from the Geology, Minerals, Energy, and Geophysics Science Center takes measurements of hydrologic properties of burned and unburned soils in the LNU Lightning Complex Fire area in Napa County, Calif., in early October.
Posted inNews

Biggest Risk to Surface Water After a Wildfire? It’s Complicated

Megan Sever, Science Writer by Megan Sever 20 October 20206 January 2022

Whether you’re considering short-term or long-term changes to water quality after a wildfire, scientists agree that sedimentation is a big concern.

Santa Barbara Channel is seen in the foreground off the coast of Ventura, Calif.
Posted inResearch Spotlights

Southern California’s Crustal Motion Tells of Earthquake Hazards

Aaron Sidder, freelance science writer by Aaron Sidder 9 October 20206 October 2021

Precise measurements of the Earth’s vertical surface motion help to elucidate the hazards of faults in an earthquake-prone region.

Large rock balanced on cliffside
Posted inEditors' Highlights

Earthquake Hazard Hanging in the Balance

by T. Parsons 1 October 202011 February 2022

Earthquake hazard calculations for California’s coast are refined with a view of precariously balanced rocks that would have fallen if the largest predicted shaking happened in the past 20,000 years.

An empty Sand Hill Road winds through Silicon Valley, with Stanford University’s bell tower in the background
Posted inResearch Spotlights

Fibers Pick Up Silicon Valley Traffic Changes During Quarantine

Rachel Fritts, Science Writer by Rachel Fritts 1 October 202014 May 2024

Fiber-optic cables measured a 50% decline in Sand Hill Road traffic in March.

Two oil-drilling platforms off the Long Beach, Calif., coast
Posted inNews

Los Costos Ecológicos de Remover las Plataformas Petroleras Mar Adentro en California

Katherine Kornei, Science Writer by Katherine Kornei 26 August 202014 March 2023

Las plataformas de perforación de petróleo- y gas-mar adentro son hábitats ricos para peces. Eliminarlas por completo resultaría en una pérdida del 95% de biomasa de peces, revela una nueva investigación.

Two graphics showing how P-waves emitted by a virtual source traveled
Posted inEditors' Highlights

Fine-scale Structure Mapped by Body Waves Extracted from Noise

by M. K. Savage 17 June 20203 November 2021

A novel processing scheme was used to extract refracted body waves from ambient seismic noise and investigate the small-scale structure around a fault at Long Beach, California.

Rose Parade float featuring dinosaurs
Posted inNews

Everything’s Coming Up Roses for Pasadena Seismologists

Mary Caperton Morton, Science Writer by Mary Caperton Morton 4 June 202014 May 2024

Using fiber-optic cables, a new seismic network charts vibrations associated with the Rose Parade’s massive floats and marching bands.

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