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surface waves & tides

An icy Arctic vista is seen from a slight elevation. The landscape contains patches of white ice and randomly positioned pools of meltwater. Four scientists, small and seen from a distance, stand on the ice on the right side of the image.
Posted inNews

Melting Arctic Sea Ice Strengthens Tides

Kimberly M. S. Cartier, News Writing and Production Intern for Eos.org by Kimberly M. S. Cartier 21 October 20213 January 2023

If climate change throws off the seasonal freeze-thaw cycle of Arctic sea ice, it could trigger a reinforcing cycle of sea ice melt in parts of the Canadian Arctic.

A boat floats between flood buildings, with people walking on the sidewalks and across a bridge.
Posted inENGAGE, News

For Venice’s Floodgates to Work, Better Forecasts Are Needed

Damond Benningfield, Science Writer by Damond Benningfield 14 October 202129 March 2023

Climate change increases massive storm surges, which may be more than Venice’s flood-control system can handle.

The heat surface of El Niño in 2015 looks like El Niño in 1997.
Posted inResearch Spotlights

Explaining Thermal Tides in the Upper Atmosphere During the 2015 El Niño

by David Shultz 26 August 202116 March 2023

Increased tropospheric heating and reduced dissipation combine to explain an anomalously large thermal tide.

Map showing location of study area (left) and conceptual model of tidally driven mixed sand–mud sediment transport at flood tide (right).
Posted inEditors' Highlights

Unravelling Sands and Muds Suspended in Coastal Environments

by Ryan P. Mulligan 26 July 202129 June 2022

A new study uses the response of optical and acoustic measurements to derive a sediment composition index for prediction of the relative fractions of mixed sediments in suspension.

Imagen mostrando bolsas y otros restos de plástico flotando en el océano.
Posted inResearch Spotlights

Rastreando cómo se mueve el plástico en el océano costero

Kate Wheeling, freelance science writer by Kate Wheeling 3 March 202124 February 2023

Investigadores utilizaron un tanque de olas para estudiar el movimiento de partículas de plástico de forma experimental y comprender el papel de la densidad de partículas en el comportamiento de deriva.

A research vessel in the Arctic at sunset
Posted inNews

The Influence of Tidal Forces Extends to the Arctic’s Deep Sea

by Jackie Rocheleau 21 January 202119 October 2021

The Moon’s gravitational pull creates the tides, but its influence extends hundreds of meters below the sea surface too, influencing sensitive methane seeps in the seabed.

An image depicting Jupiter and its four largest moons
Posted inResearch Spotlights

Jupiter’s Ocean Moons Raise Tidal Waves on One Another

Rachel Fritts, Science Writer by Rachel Fritts 20 August 202027 January 2022

New research considers the effect of Jupiter’s Galilean moons on each other’s oceans for the first time.

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 202016 March 2023

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

Katherine Kornei, Science Writer 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.

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