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surface waves & tides

Researchers explore the links between climate change and ocean tides
Posted inResearch Spotlights

Can Ocean Tides Be Powerful Indicators of Climate Change?

by S. Witman 6 June 201729 March 2023

A new study simulates how ocean warming due to climate change will affect the electromagnetic signal emitted by ocean tides over the next century.

sunlight on water
Posted inResearch Spotlights

Sun Glitter Provides a Detailed Map of Ocean Waves

by S. Witman 20 March 20176 February 2023

European scientists use satellite sensors to detect light reflected off waves at the ocean's surface, which could help improve wave forecasts.

An acoustic tide gauge monitors the harbor at Burnie on the northern coast of Tasmania, Australia.
Posted inOpinions

Why We Must Tie Satellite Positioning to Tide Gauge Data

by P. L. Woodworth, G. Wöppelmann, M. Marcos, M. Gravelle and R. M. Bingley 3 January 201730 September 2021

Accurate measurements of changes in sea and land levels with location and time require making precise, repeated geodetic ties between tide gauges and satellite positioning system equipment.

tide-gauges-underestimate-sea-level-rise-limitations
Posted inResearch Spotlights

Tide Gauge Records May Underestimate 20th Century Sea Level Rise

Leah Crane by L. Crane 29 September 20161 November 2021

Tide gauges can help measure sea level change, but their limited locations and short records make it hard to pinpoint trends. Now researchers are evaluating the instruments' limitations.

san-andreas-fault-carrizo-plain-deep-earthquakes-show-tidal-patterns
Posted inNews

Tiny, Deep Quakes Increase on San Andreas as Tides Tug on Fault

Amy Coombs by A. Coombs 26 July 20166 October 2021

When the gravity of the Sun and Moon causes Earth's crust to bulge every 2 weeks, slow-moving earthquakes proliferate in the lower reaches of the San Andreas, a new study finds.

Ocean wave viewed from below.
Posted inResearch Spotlights

The Dance of Surface Waves and Ocean Circulation

Shannon Hall by S. Hall 19 July 20168 June 2022

One mathematical model best describes the complex interplay between an ocean's surface waves and its underlying circulation.

Ocean-going ships like this National Oceanic and Atmospheric Administration vessel plying rough water off North Carolina occasionally encounter huge waves that science still cannot predict.
Posted inNews

Model Predicts Heights of Rogue Waves

Amy Coombs by A. Coombs 29 June 201617 October 2022

Rogue waves form without warning and can tower more than 25 meters high. A new mathematical approach shows promise at simulating how high these waves can be.

Traditional Polynesian navigators steer by stars close to the horizon for a more precise reckoning.
Posted inNews

Stars and Swells Guide a Polynesian Canoe Around the World

by E. Deatrick 22 June 201619 July 2022

Modern oceanographers and ancient navigators rely on similar waves to study the world's oceans.

Engineers decommissioning an ocean bottom seismometer and differential pressure gauge
Posted inResearch Spotlights

Streamlining Rapid Tsunami Forecasting

Sarah Stanley, Science Writer by Sarah Stanley 23 May 20168 December 2022

With enough sensors, traditional forecasting methods could be replaced by models continuously updated with real-time wave data.

Tidal bore traveling up the Mersey River in northwestern England.
Posted inResearch Spotlights

When Rivers and Tides Collide

Sarah Stanley, Science Writer by Sarah Stanley 28 April 201624 February 2023

Scientists review several decades of research on the complex freshwater reach where fluvial and tidal forces meet.

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