hydrology

I want to solve the diffusion equation in porous media with some external forcing at the origin. The regular diffusion equation- $$ \frac{\partial h}{\partial t}=D\nabla^2h $$ But I want to solve for pore pressure, so I am using $p=\rho g h$ where h is the pore pressure and h is the hydraulic head and D is a constant. Also, I am simplifying this for 1-D, so this equation becomes - $$ \frac{\parti…

Nature Water, Published online: 11 September 2026; doi:10.1038/s44221-026-00699-6 This study presents a globally scalable, seasonally resolved classification of gauged and ungauged catchments into three functional rainfall–runoff types (simple, intermediate and complex), revealing that functional complexity is the norm across most of the world’s rain-dominated streams and rivers and providing a f…

Scientific Reports, Published online: 09 September 2026; doi:10.1038/s41598-026-68346-4 Three-dimensional groundwater flow modelling of the Lower Mahanadi River Basin, Nayagarh, Odisha, India Using MODFLOW-GMS–NWT

For URI water scientist Dr. Soni Pradhanang, the recent avalanche and flooding in Nepal is both a scientific event and a deeply personal one. Raised in Kathmandu, Pradhanang studies flooding, water resources and mountain hazards. Alongside Ph.D. student Pratik Singh Thakuri, also from Nepal, she is examining the Aug. 26 event using satellite imagery and hydrologic expertise.

Visualizing the pulse flow (click on the image to embiggen). Hitting "reload" and keeping track of six open browser tabs was making my head hurt - this helped. Back story here via Paul Tashjian, written as the pulse flow was getting underw...

The Center for Hydrologic Innovations is hosting the 4rd annual ASU Flow event at ASU SkySong in Scottsdale, Arizona, on October 14, 2026, in collaboration with the Phoenix Chapter of the Arizona Hydrological Society. Check out the poster abstracts and sponsorship opportunities at: https://chi.asu.edu/hydrologic-innovations-flow/ The post ASU Flow: Bridging the gap between water research and prac…

Scientific Reports, Published online: 06 September 2026; doi:10.1038/s41598-026-69581-5 National-scale hydroclimatic exposure screening of earthen heritage sites in China under changing precipitation regimes

A single dye molecule's 19-mile underground odyssey through Florida's hidden plumbing revealed how profoundly the state's aquifer remains a mystery.

Scientific Reports, Published online: 05 September 2026; doi:10.1038/s41598-026-69590-4 Nonlinear hydrological responses to intermediate development pathways in semi-arid watersheds

URI water scientist Soni Pradhanang is balancing the professional and the personal, watching the news in her home country of Nepal after the recent glacial collapse and flooding there.

A devastating flood hit nepal’s hydropower heartland and could make electricity 10% more expensive.

New research takes a high-resolution, hourly look at how natural and urban hydrologies interact on the island nation of Singapore. Here an aerial view shows the Gardens by the Bay in Singapore, including the shell-like Cloud Forest and Flower Dome conservatories alongside the Supertree Grove. Credit: Zion C/Unsplash

Scientific Reports, Published online: 04 September 2026; doi:10.1038/s41598-026-68465-y Sensitivity analysis of flood frequency to the length of the data recording period

Two people stand near a footbridge that was destroyed in the Bright Angel flash flood on the afternoon of 29 August. Monsoon rains, following drought conditions and a 2025 fire in the area, combined to lead to dangerous flash flooding in the Grand Canyon. Credit: Grand Canyon National Park Service , CC BY 4.0

A weekend flash flood severely damaged the Transcanyon Waterline at Grand Canyon, impacting water supply for millions and complicating ongoing replacement efforts.

Scientific Reports, Published online: 03 September 2026; doi:10.1038/s41598-026-69512-4 Reconstructing missing data by comparing imputation and interpolation techniques: applications for long-term groundwater monitoring

Reservoir water level monitoring and early warning are critical components of flood control and disaster mitigation in river basins, as they can effectively prevent dam failures or downstream flooding. However, existing reservoir monitoring systems generally suffer from response delays and ineffective early warnings when dealing with sudden anomalies in water level readings (such as those caused …

The Flood Forecasting Division put the peak flow at Devghat at 5,850 cubic metres per second, which the Kathmandu water policy expert who assembled the station readings calls the size of flood that comes once every two to three years.

The country’s water crisis threatens drinking water and hydropower and worsens the risk of destructive fires.

A.17 Hydrosphere solicits research on the Earth’s Hydrosphere: to advance the understanding of the physics of Earth’s water across the ocean, land, and the atmosphere. This Hydrosphere element is composed of three Earth science disciplines: ocean physics, terrestrial hydrology, and precipitation science. The overlapping goals of are to address fundamental questions about the distribution, movemen…