Earth Sciences

News articles classified as Earth Sciences

Airborne radar reveals groundwater beneath glacier

Researchers have detected groundwater beneath a glacier in Greenland for the first time using airborne radar data. If applicable to other glaciers and ice sheets, the technique could allow for more accurate predictions of future sea-level rise.

Local impacts from fracking the Eagle Ford

Stanford scientists simulated the local risk of damaging or nuisance-level shaking caused by hydraulic fracturing across the Eagle Ford shale formation in Texas. The results could inform a new approach to managing human-caused earthquakes.

Can extreme melt destabilize ice sheets?

Researchers have deciphered a trove of data that shows one season of extreme melt can reduce the Greenland Ice Sheet’s capacity to store future meltwater – and increase the likelihood of future melt raising sea levels.

Research and policy in a changing Arctic

Stanford University scholars discuss the Biden administration’s early actions on environmental issues in the Arctic and how the U.S. government can address threats to ecosystems, people and infrastructure in the fastest-warming place on Earth.

The future of America’s drinking water

Naming priorities such as better land management, an evolved portfolio of 21st-century solutions and more funding for research and development, Stanford experts highlight areas central to success as the Biden-Harris administration aims its sights on safeguarding U.S. drinking water.

Lessons from Fukushima disaster 10 years later

A decade after a powerful earthquake and tsunami set off the Fukushima Daiichi nuclear meltdown in Japan, Stanford experts discuss revelations about radiation from the disaster, advances in earthquake science related to the event and how its devastating impact has influenced strategies for tsunami defense and local warning systems.

How much do humans influence Earth’s water levels?

A new study provides the first global accounting of fluctuations in lake and reservoir water levels. The research shows 57 percent of the variability occurs in dammed reservoirs and other bodies of water managed by people, highlighting the dominant role humans now play in Earth’s water cycle.

Undersea origins of Earth’s mysterious Love waves

Supercomputer simulations of planetary-scale interactions show how ocean storms and the structure of Earth’s upper layers together generate much of the world’s seismic waves. Decoding the faint but ubiquitous vibrations known as Love waves could yield insights about Earth’s storm history, changing climate and interior.

Stanford Earth —

Restless Earth: The science behind earthquakes

A collection of research and insights from Stanford experts on where and how earthquakes happen, why prediction remains elusive, advances in detection and monitoring, links to human activities, how to prepare for “The Big One,” and more.

U.S. corn crop increasingly sensitive to drought

New management approaches and technology have allowed the U.S. Corn Belt to increase yields despite some changes in climate. However, soil sensitivity to drought has increased significantly, according to a new study that could help identify ways to reverse the trend.

AI detects hidden earthquakes

Tiny movements in Earth’s outermost layer may provide a Rosetta Stone for deciphering the physics and warning signs of big quakes. New algorithms that work a little like human vision are now detecting these long-hidden microquakes in the growing mountain of seismic data.

How earthquake swarms arise

A new fault simulator maps out how interactions between pressure, friction and fluids rising through a fault zone can lead to slow-motion quakes and seismic swarms.

Gravity wave insights from internet-beaming balloons

A better understanding of how gravity waves in the upper atmosphere interact with the jet stream, polar vortex and other phenomena could be key to improved weather predictions and climate models.

COVID-19 opportunities

The researchers hypothesize outcomes of the pandemic’s unprecedented socioeconomic disruption, and outline research priorities for advancing our understanding of humans’ impact on the environment.

Methane emissions climb

The pandemic has tugged carbon emissions down, temporarily. But levels of the powerful heat-trapping gas methane continue to climb, dragging the world further away from a path that skirts the worst effects of global warming.

‘Regime shift’ happening in the Arctic Ocean

Stanford scientists find the growth of phytoplankton in the Arctic Ocean has increased 57 percent over just two decades, enhancing its ability to soak up carbon dioxide. While once linked to melting sea ice, the increase is now propelled by rising concentrations of tiny algae.

Rethinking tsunami defense

Careful engineering of low, plant-covered hills along shorelines can mitigate tsunami risks with less disruption of coastal life and lower costs compared to seawalls.

Stanford Earth —

Fact or fiction? The science of “Star Wars“

How did those planets form? Could they exist in our universe? Could “Star Wars” really happen? Stanford Earth experts on planetary formation, processes and habitability discuss the science behind the fictional saga.

Stanford Earth —

Q&A: 30 years after the Loma Prieta earthquake

Reflecting on the 30th anniversary of Loma Prieta, earthquake experts share their perspectives on how the event affected them, the Bay Area and the research community at large.

Where can flooded fields help replenish groundwater?

Overpumping in California’s Central Valley has depleted groundwater storage capacity and caused the land to sink. A new model could help zero in on where water managers can replenish aquifers by flooding fields.

Sterol-producing bacteria may change interpretation of geological history

Geologists assume when they find molecules called sterols in soils or rocks they indicate the presence of plants, animals or fungi in ancient environments. In new research from Paula Welander, discovering how some bacteria also produce and modify sterols could change those interpretations.