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surface waves & tides

World map using color to show the occurrence of extratropical cyclones
Posted inEditors' Highlights

Tracking Ocean Waves from Extratropical Cyclones on Global Scale

by Ryan P. Mulligan 20 January 202318 January 2023

A new way of tracking ocean waves with satellite measurements was developed and applied to extratropical cyclones, revealing the effects of storm characteristics on extreme sea states.

Una vista del Ártico congelado vista desde una elevación moderada. El paisaje contiene estanques de agua derretida distribuidos aleatoriamente. Cuatro científicos, pequeños y vistos desde la distancia, se paran sobre el hielo en la parte derecha de la imagen.
Posted inNews

El derretimiento del hielo marino del océano Ártico potencia las mareas

by Kimberly M. S. Cartier 3 January 202327 January 2023

Si el cambio climático anula el ciclo estacional de hielo y deshielo, se desencadenaría un ciclo de retroalimentación de derretimiento del hielo marino en algunas partes del Ártico canadiense.

Two maps using color to show sea level and resulting self-attraction and loading field.
Posted inEditors' Highlights

Accurate Ocean Tides for Earth System Models

by Stephen M. Griffies 1 December 202216 February 2023

Accurate tide models require self-attraction and loading terms, but can this calculation be done accurately and efficiently for use in global tide and Earth system models?

Two maps showing locations of seismic arrays.
Posted inEditors' Highlights

Can Anelastic Attenuation of Oceanic Mantle be Reliably Measured?

by Fan-Chi Lin 26 October 202227 January 2023

A new study demonstrates that robust anelastic attenuation measurements can be made across ocean bottom seismic arrays at different locations using surface wave array analysis.

Diagrams from the paper that show a representation of the pore pressure change and well water level in a semi-confined aquifer due to Earth tide strains.
Posted inEditors' Highlights

Modeling Groundwater Responses to Earth Tides

by Beatriz Quintal 19 October 202217 October 2022

Tidal fluctuations in water well levels can reveal characteristics of the subsurface, and a new model based on coupled physics delineates the limitations of inherently simplistic analytical solutions.

Satellite photo of a tropical cyclone with a graph overlaying it.
Posted inEditors' Highlights

Ocean Waves Cause Drag Coefficient Asymmetry Within Typhoons

by Lei Zhou 5 October 20224 October 2022

Observations show that, due to ocean waves, the drag coefficients for surface wind stresses have spatial asymmetry within typhoons, which should be considered in weather and climate simulations.

Sensors attached to an orange buoy on the deck of a research vessel
Posted inNews

River Floods Can Trigger Powerful Underwater Landslides

by Carolyn Wilke 26 August 202225 January 2023

A record-length turbidity current triggered by river flooding has revealed a new link between the surface and the deep sea.

Two figures from the paper that show wave measurements in the presence of sea ice using satellite remote sensing.
Posted inEditors' Highlights

Satellites Remotely Measure Ocean Waves and Sea Ice Interactions

by Ryan P. Mulligan 12 July 202228 September 2022

A new method for using satellite observations from multiple sensors improves measurements of ocean waves as they propagate through and interact with sea ice.

Map showing the global distribution of surface-mixed layer depth.
Posted inEditors' Highlights

An Ocean Surface Layer with Potential

by Lars Umlauf 11 July 202217 August 2022

The depth of the ocean’s surface mixed layer is typically defined based on density thresholds. However, a more physically appealing definition can be constructed from potential energy considerations.

Muon detectors in a tunnel under Tokyo Bay
Posted inNews

Muography Array Under Tokyo Bay Spots Meteotsunami Waves

by Tim Hornyak 20 May 20227 March 2023

A new study shows how muons can be used to study tide and wave phenomena, helping secure coastal communities.

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