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surface waves & tides

Photograph of the Thames flood barrier in London
Posted inEditors' Vox

The Ups and Downs of Tides

by J. A. M. Green, I. D. Haigh and M. D. Pickering 13 August 202014 April 2022

The size of tides has changed in the past and will continue to change in the future due to natural and anthropogenic influences on estuaries, coastlines, and near shore regions.

Seabird soars over a very stormy Southern Ocean
Posted inNews

Larger Waves in Store as the Planet Warms

by Katherine Kornei 9 July 202030 November 2022

By the end of the 21st century, waves will have gotten larger in some ocean basins, particularly the Southern Ocean, climate modeling reveals.

Graph showing temperatures in four different depth layers over time
Posted inEditors' Highlights

CAT Pictures of Internal Solitary Waves in Indonesian Strait

by J. Sprintall 7 October 201927 January 2023

Huge and rapid subsurface temperature changes associated with propagating internal solitary waves were observed from a moored coastal acoustic tomography (CAT) system in Lombok Strait in Indonesia.

A vertical-lift bridge spanning a river
Posted inNews

This Bridge Monitors the Environment and Harnesses Tidal Energy

by R. Crowell 7 August 20199 May 2022

The “smart” Memorial Bridge spanning the Piscataqua is outfitted with a tidal turbine and more than 40 sensors.

Blue sea meeting red sands along Western Australia coast
Posted inNews

Australia’s Complex Intertidal Zones Mapped in 3-D

by Kimberly M. S. Cartier 2 August 20193 November 2021

Intertidal zones support biodiverse habitats but have lost serious ground in recent decades to development, erosion, and sea level rise.

Aerial photo of a dark sand beach at low tide with snow-capped mountains in the background
Posted inFeatures

The Tides They Are a-Changing

by Bas den Hond 19 June 20199 December 2022

The twice-daily ebb and flow of the sea have the power to change the planet. Weak tides could have allowed Earth to freeze over, and strong tides may have given vertebrates a leg up on land.

A loggerhead sea turtle hatchling scrambles toward waves on a beach.
Posted inNews

Predicting Wave Wash Overs for Sea Turtle Nests

by Sarah Derouin 14 May 20192 September 2022

To better protect coastal species, researchers developed a model that predicts harmful wash overs with 83% accuracy.

The western Pacific Ocean
Posted inResearch Spotlights

Numerical Models Overestimate Near-Inertial Wind Power Input

by Terri Cook 19 April 201910 March 2022

The first study to estimate the global wind power on internal gravity waves based solely on observations offers a new benchmark for comparing future calculations.

Waves crash ashore during a storm
Posted inNews

Weather-Induced Tsunami Waves Regularly Roll Up on U.S. Shores

by Katherine Kornei 3 April 201917 May 2022

Roughly 25 meteotsunamis strike coastlines between Maine and Puerto Rico each year, tide gauge data reveal.

A remotely operated vehicle explores brine pool formations in the Gulf of Mexico.
Posted inNews

Waves of Deadly Brine Can Slosh After Submarine Landslides

by Katherine Kornei 28 January 201916 September 2022

Brine pools—hypersaline, low-oxygen waters deadly to many forms of ocean life—can experience waves hundreds of meters high when hit by a landslide, potentially overspilling their deep-sea basins.

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Features from AGU Journals

RESEARCH SPOTLIGHTS
JGR: Solid Earth
“New Tectonic Plate Model Could Improve Earthquake Risk Assessment”
By Morgan Rehnberg

EDITORS' HIGHLIGHTS
AGU Advances
“Eminently Complex – Climate Science and the 2021 Nobel Prize”
By Ana Barros

EDITORS' VOX
Perspectives of Earth and Space Scientists
“New Directions for Perspectives of Earth and Space Scientists”
By Michael Wysession


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