Scale showing soil saturation levels through colors.

Accounting for Soil Saturation Enhances Atmospheric River Flood Warnings

Atmospheric rivers carry unfathomable amounts of water across the sky, bringing moisture to drought-stricken regions like the Western U.S. But whether a particular incoming atmospheric river storm will result in disastrous flooding has long been difficult for researchers to determine with confidence. Now, a new DRI-led study demonstrates that accounting for soil saturation levels can substantially improve our early warning of potentially destructive flooding events. The research, published February 12th in Nature Communications, was led by DRI hydrologist Mariana Webb. She and her team examined more than 71,000 atmospheric river storms in the Western U.S. and central Chile to improve flood hazard early warning.

A map of the North American Continent with a background image of the desert on a rainy day.

A Rare Desert Plant Shows Benefits of Sustainability Efforts at a Large Solar Array in the Mojave Desert 

Although sunlight is one of the cleanest forms of renewable energy available, clearing large swathes of desert habitat to build solar arrays has consequences for the plants and animals it displaces. Researchers are trying to find better ways to preserve desert landscapes without impeding solar energy development. Now, a new study demonstrates that with careful planning and consideration for the ecosystem around it, at least one desert plant is surviving — and thriving — amidst the solar panels helping to power Las Vegas.  

View of mountainous and grassland landscape.

New Study Offers a Glimpse Into 230,000 Years of Climate and Landscape Shifts in the Southwest

Atmospheric dust plays an important role in the way Earth absorbs and reflects sunlight, impacting the global climate, cloud formation, and precipitation. Much of this dust comes from the continuous reshaping of Earth’s surface through the erosion of rocks and sediments, and understanding how this process has shaped landscapes can help us decipher our planet’s history – and its future. Although an ephemeral phenomenon by nature, dust emissions through time can be depicted through natural archives like lake sediment cores. In a new study, scientists examine one such record to peer 230,000 years into the past of the American Southwest.

A microscope photo of colorful microfibers.

Household Dryers Are Significant Sources of Microfiber Pollution, Study Finds 

The fabrics that fill our homes, from natural cotton towels and bedsheets, to clothes produced with synthetic materials, produce microscopic fibers as they break down over time. Previous research has shown that household washers collect and release these microfibers into the environment, and now a new study uses citizen science to demonstrate how dryer vents also produce microfibers under normal household use.  

Aerial image of the Baltazor hot springs.

New Study Reveals Alarming Groundwater Declines Threatening Nevada’s Ecosystems

DRI’s Dan McEvoy is a researcher with the Western Regional Climate Center, and he recently co-authored a new study showing the declining groundwater levels in Nevada. He worked with scientist Laurel Saito with The Nature Conservancy to address risks and solutions to this groundwater problem.
The aim for the study, published in Hydrological Processes, was to determine risk factors leading to the declining groundwater levels, and propose science-based solutions for groundwater dependent ecosystems (GDEs).

Plane in front of very large clouds.

Scientists Successfully Recreate Wildfire-Induced Thunderstorms in Earth System Models for the First Time

The breakthrough enhances scientific understanding of the dangerous storms and their long-term impacts on the climate. The research, published September 25th in Geophysical Research Letters, represents the first successful simulation of these wildfire-induced storms, known as pyrocumulonimbus clouds, within an Earth system model. Led by DRI scientist Ziming Ke, the study successfully reproduced the observed timing, height, and strength of the Creek Fire’s thunderhead – one of the largest known pyrocumulonimbus clouds seen in the U.S., according to NASA.

A van parked in a mountain landscape.

Keep Tahoe Blue, The Tyre Collective, and DRI launch innovative pilot program to protect Lake Tahoe’s air and water 

Today, Keep Tahoe Blue, The Tyre Collective, and Desert Research Institute (DRI) announced a groundbreaking collaboration with the Emerald Bay Shuttle and its operator, Downtowner, that brings together science, technology, and alternative transportation to protect Lake Tahoe’s world-renowned water clarity.  The pilot program employs The Tyre Collective’s proprietary technology — discrete, compact devices affixed to a vehicle’s undercarriage — to capture harmful tire wear particles directly at the wheel.  

Buildings and tents in a snowy landscape

Hidden Life Beneath Antarctic Ice: Microbial Diversity and Survival Strategies Revealed in Mercer Subglacial Lake 

Hundreds of lakes exist beneath the Antarctic ice sheet, and very few have ever been explored by scientists. Now, an international research team has published their findings from an ambitious effort to drill over 1,000 meters into the ice to sample the life hidden in one known as Mercer Subglacial Lake. The project, referred to as the Subglacial Antarctic Lake Scientific Access (SALSA) project, was documented in detail for the film The Lake at the Bottom of the World.  

DRI Contributes to Study Using AI in Wastewater Surveillance for Detection of Emerging Virus Pathogens 

DRI Microbiologist Duane Moser co-authored a new study which introduces an AI-driven approach for the rapid detection and characterization of emerging variants during wastewater surveillance. The research builds on his earlier work helping to establish wastewater monitoring as a cost-effective tool for tracking pathogens during the COVID-19 pandemic. 

Two researchers in orange winter gear stand next to their tent on the side of a snowcapped mountain.

Scientists Find the First Ice Core From the European Alps That Dates Back to the Last Ice Age

The new study, published in the June issue of PNAS Nexus, examines a 40-meter long ice core from Mont Blanc’s Dôme du Goûter. Using radiocarbon dating techniques, the research team found that the glacier provides an intact record of aerosols and climate dating back at least 12,000 years. Aerosols are small droplets and particles in the air such as desert dust, sea salts, sulfur from volcanic eruptions, soot from forest fires, as well as pollutants and other emissions from human activities.