Hydrologic Sciences Archives

Spring Runoff is Older Than You Think

Jun 3, 2025 | Research findings

DRI’s Rosemary Carroll, Research Professor of Hydrology, co-authored a new study that found spring runoff in mountains across the Western U.S. is much older than previously known. Using advanced dating techniques, the research discovered that melting mountain snowpacks first replenish groundwater reserves before filling springs several years later. This means that the water relied on by communities across the West takes over five years from snowflake to streamflow. The research has implications for water management and our understanding of the changing dynamics of water availability.

OpenET’s New CEO, Sara Larsen, Discusses the Future of the Revolutionary Water-Monitoring Initiative

Apr 8, 2025 | Featured projects

OpenET, a nonprofit initiative focused on improving water management with accessible, satellite-based evapotranspiration (ET) data, has welcomed Sara Larsen as the new CEO. DRI sat down with Sara to discuss what makes the initiative unique, her plans for the organization, and how OpenET can help address the biggest challenges in water management.

New Study Finds Rocky Mountain Snow Contamination

Apr 1, 2025 | Research findings

An examination of Rocky Mountain snow finds higher contamination levels of mercury and others metals in the northern part of the range, consistent with increased current and historical mining in the region. The study, published in the May issue of the journal Environmental Pollution, examined contamination levels for Mercury, Zinc, Cadmium and Antimony from nearly 50 sites in the Rocky Mountains.

FARMing with Data: OpenET Launches New Tool for Farmers and Ranchers

Mar 6, 2025 | Announcements

A NASA, DRI, and U.S. Geological Survey (USGS)-supported research and development team is making it easier for farmers and ranchers to manage their water resources. The team, called OpenET, created the Farm and Ranch Management Support (FARMS) tool, which puts timely, high-resolution water data directly in the hands of individuals and small farm operators.

Roots of Wonder: Following Curiosity into the Natural World

Jan 22, 2025 | Curiosity Lab Las Vegas

Join us for an evening of storytelling that delves into the roots of curiosity and its enduring connection to the natural world. Explore personal journeys of discovery that spark a lifelong fascination with nature, 'Roots of Wonder' invites you to explore how our...

New Research Solves 200 Year Volcanic Mystery

Jan 2, 2025 | Research findings

DRI scientists Joe McConnell and Nathan Chellman are co-authors on a new study that sheds light on a historical mystery that has plagued historians and scientists alike for nearly two centuries. Using Arctic ice core records, the team identified the volcano responsible for an enormous eruption in 1831 that caused global cooling of around 1°C, leading to crop failures and famines around the world.

Meet Tyler Doane

Nov 14, 2024 | Featured researchers

Tyler Doane, Ph.D., started in May 2024 as Assistant Research Professor in the Division of Hydrologic Sciences. He works remotely from Cleveland, Ohio, where his wife teaches bioethics at Case Western Reserve University’s medical school. Doane is a geomorphologist who received his Ph.D. at Vanderbilt University before completing a postdoctoral position at Indiana University, Bloomington. In the this Behind the Science interview, Doane talks about his interest in applying math to describe scientific phenomena, his interest in embracing noise and chaos to understand Earth systems, and his favorite method for coming up with new research questions.

Measuring Colorado River Evaporation from Reservoirs

Oct 4, 2024 | Featured projects

DRI is advancing water management in the Colorado River basin with support from the National Science Foundation’s Southwest Sustainability Innovation Engine (SWSIE) and the Governor’s Office of Economic Development. Partnering with Hydrosat, DRI uses high-resolution satellite thermal imaging to enhance evaporation estimates from key reservoirs, ensuring better resource planning amidst drought and population growth.

Groundwater Use Can Be Accurately Monitored With Satellites Using OpenET, New Study Finds

Sep 5, 2024 | Research findings

DRI scientists compared data from groundwater pumping meters with OpenET estimates in irrigated land to advance understanding of groundwater use. The new study demonstrated that OpenET can be used to accurately estimate the amount of groundwater used for crop irrigation at the level of individual fields.

Tracking the Restorative Effects of Good Fire

Aug 6, 2024 | Featured projects

A few miles south of Yosemite’s famed Glacier Point, ringed by striking granite domes, lies the Illilouette Basin. This small stretch of the Sierra Nevada Mountains has become a sort of fire laboratory, a place where natural wildfires have been allowed to burn since 1972. In contrast with the long-supported program of fire suppression that has dominated American forests since the late 19th century, resulting in dense and unhealthy forests, the Illilouette Basin’s story is about the benefits that natural fire can bring to the landscape.