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floods

Flooding at a home on the Saint Lawrence River.
Posted inNews

What Caused the Ongoing Flooding on Lake Ontario?

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 3 August 20179 March 2023

The floodwaters have also affected residents downstream along the Saint Lawrence River. Although politicians quickly blamed regulations, scientists say it was a perfect storm of natural factors.

Researchers assess how past flooding influences river meanders
Posted inResearch Spotlights

A New Model for River Meanders

by E. Underwood 2 August 201726 July 2023

A river’s twists and turns are shaped by its past flood events.

Posted inEditors' Vox

The Value of Disaster Damage Data

by D. Molinari, S. Menoni and F. Ballio 21 July 20172 February 2022

The editors of a new book describe the benefits of systematic collection, storage, analysis, and sharing of damage data after flood events.

First-grade teacher Sheri Bittle (above) uses her phone amid the rubble of her classroom destroyed by a 21 May 2013 tornado in Moore, Okla.
Posted inNews

Algorithm Discerns Where Tweets Came from to Track Disasters

Katherine Kornei, Science Writer by Katherine Kornei 17 July 201719 January 2023

New pilot system that analyzed more than 35 million flood-related Twitter posts to determine their geographic origin might help first responders locate and react more quickly to calamities.

Tim Cohn
Posted inNews

Timothy A. Cohn (1957–2017)

by R. M. Hirsch 23 June 201724 February 2023

Cohn emphasized the use of hydrologic science for the public good, to protect ordinary citizens from flood and pollution hazards and to reduce losses from natural disasters.

In September 2009, Typhoon Ketsana dropped 455 millimeters of rain on Manila in 24 hours, flooding the city.
Posted inNews

Mapping Dengue Fever Hazard with Machine Learning

Tim Hornyak, Science Writer by Tim Hornyak 14 June 201715 March 2023

Researchers develop a predictive software system to identify city-specific, dengue fever risk areas amid a global increase in cases.

Researchers assess whether methods of studying alluvial rivers are helpful to understanding behavior of rivers without loose sediment.
Posted inResearch Spotlights

How Do Rivers Flow over Bedrock?

by Terri Cook 8 May 201713 October 2022

A study questions whether the hydraulics of rivers that lack loose sediments along their bottoms can be accurately depicted by standard equations for flow over sediment.

A glacial outburst flood from Lhotse Glacier on 12 June 2016 threatens a stone wall adjacent to a village in Nepal.
Posted inNews

Glacial Outburst Flood near Mount Everest Caught on Video

Katherine Kornei, Science Writer by Katherine Kornei 14 March 20179 March 2023

More than 2 million cubic meters of water, hidden deep within Lhotse Glacier, spilled down toward the village of Chukhung, Nepal, in 2016.

A city employee checks on the pumps as a sandbag wall keeps flood waters from the Illinois River at bay in January 2016.
Posted inNews

Key House Member Makes a Conservative's Case for Water Projects

by Randy Showstack 13 March 201723 March 2023

The White House and Democrats want to see an infrastructure package move through Congress. One House subcommittee chairman intends to make sure that water resource projects are part of the plan.

Floodwaters in the Elbe River reached an all-time high in August 2002, inundating this street in Dresden.
Posted inScience Updates

Using Archives of Past Floods to Estimate Future Flood Hazards

by T. Swierczynski, M. Ionita and D. Pino 13 January 201723 January 2023

Cross Community Workshop on Past Flood Variability; Grenoble, France, 27–30 June 2016

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A view of a bridge, with the New Orleans skyline visible in the distance between the bridge and the water. A purple tint, a teal curved line representing a river, and the text “#AGU25 coverage from Eos” overlie the photo.

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New River Chemistry Insights May Boost Coastal Ocean Modeling

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Editors' Highlights

Central China Water Towers Provide Stable Water Resources Under Change

9 January 20269 January 2026
Editors' Vox

Hydrothermal Circulation and Its Impact on the Earth System

3 December 20253 December 2025
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