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deltas

Alligator on a log in the waters of the Mississippi River Delta
Posted inNews

Building a Better River Delta

by Danielle Beurteaux 8 September 202119 September 2023

People have been engineering river deltas for millennia, but new research identifies the optimal placement for diversions that benefit both local communities and the environment—and it might be close to a city.

Image of the Jezero delta on Mars
Posted inEditors' Highlights

How Fast Did an Ancient Martian Delta Form?

by F. Nimmo 23 April 202019 September 2023

Terrestrial meander migration rates are used to estimate a formation timescale of decades for Jezero delta on Mars.

Aerial view of a flat floodplain delta, agricultural land, and a town beyond
Posted inResearch Spotlights

Finding Natural Solutions to Man-Made Problems in River Deltas

Kate Wheeling, freelance science writer by Kate Wheeling 3 April 202019 September 2023

Decades of research on river deltas identify gaps in our knowledge of delta behavior and the tools required to fill them in.

Satellite view of the Lena River delta in June 2019
Posted inResearch Spotlights

River Deltas at the Top of the World

Elizabeth Thompson by Elizabeth Thompson 20 March 202019 September 2023

The water that filters through river deltas has a large effect on the Arctic Ocean. A new study explores factors that shape Arctic river deltas and how delta form in turn changes water flow.

Ligeia Mare
Posted inNews

Scientists Search for Deltas on Saturn’s Largest Moon

JoAnna Wendel, freelance science writer and illustrator by JoAnna Wendel 31 January 202019 September 2023

Saturn’s moon Titan has rivers that empty into seas…but where are the deltas?

A delta channel from a large ancient delta extends into the Barents Sea
Posted inNews

Largest Delta Plain in Earth’s History Discovered in Arctic

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 1 April 201919 September 2023

If this Triassic period delta existed today, its footprint would equal about 1% of all land on Earth.

Holocene sediments in Syhlet Basin
Posted inEditors' Highlights

Formation of Sedimentary Deposits: Bypass Versus Mass Extraction

by Amy E. East 4 March 201919 September 2023

Grain size and sediment delivery pathways from the Ganges delta have been used to model downstream facies changes.

A satellite image of urban sprawl in Shanghai
Posted inResearch Spotlights

The Urban Dry Island Effect

by E. Underwood 28 February 201919 September 2023

A study of the Yangtze River Delta shows how urbanization dries out the atmosphere.

Researchers examine the link between drowned river deltas and methane emissions, and how they might be affected by rising sea levels
Posted inResearch Spotlights

Rising Seas Increase Methane Emissions from the Mouths of Rivers

by E. Underwood 2 August 201819 September 2023

Drowned river deltas exhale large quantities of greenhouse gas, new study finds.

The Mississippi River with the Fort St. Philip Crevasse complex shown to the right.
Posted inFeatures

Rethinking the River

by A. S. Kolker, A. M. Dausman, M, A. Allison, G. L. Brown, P. Y. Chu, K. de Mutsert, C. E. Fitzpatrick, J. R. Henkel, D. Justic, B. A. Kleiss, E. McCoy, E. Meselhe and C. P. Richards 19 June 201819 September 2023

The Mississippi River and its delta and plume provide insights into research-informed approaches to managing river-dominated coastal zones.

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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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