Understanding how the air and sea interact and affect each other during hurricane conditions is crucial in predicting the storm track, its intensity, storm surges, and ocean wave fields. When scientists create computer models to help them assess the parameters of a hurricane, they must take into account not only the atmospheric conditions of the storm, but also the conditions in the ocean, including the age and the frequency of waves.
In the current issue of the Journal of the Atmospheric Sciences, University of Rhode Island physical oceanographers Il-Ju Moon, Isaac Ginis and Tetsu Hara have published two companion papers that investigate the how surface waves and wind affect the dynamics of growing seas and complex seas under extreme hurricane conditions using a combination of computer models. Other collaborators on the project include Stephen Belcher, Department of Meteorology, University of Reading, Berkshire, England, and Hendrik Tolman, the NOAA National Center for Environmental Prediction Environmental Modeling Center, Camp Springs, MD.
The team of scientists combined three computer models to ascertain their results. The NOAA WAVEWATCH III ocean surface wave model accounts for wind input, wave-wave interaction and dissipation due to whitecapping, and wave-bottom interaction. The equilibrium spectrum model, created by Hara and Belcher, estimates the effect of the wind on the ocean by taking into account the stress caused by the waves. The wave boundary layer model, also created by Hara and Belcher, explicitly calculates the near-surface wind profile, as well as the surface drag created by the waves. In the first study, the combined model predicted the effect of the wind-wave interaction by calculating how the waves contribute to the dynamics of a mature and growing sea. The second study followed the same approach, but focused on the effect of surface waves on air-sea exchange in extreme complex seas forced by tropical cyclones.
Lisa Cugini | EurekAlert!
A close-up look at an uncommon underwater eruption
11.01.2018 | Woods Hole Oceanographic Institution
Environmental history told by sludge: Global warming lets the dead zones in the Black Sea grow
10.01.2018 | Leibniz-Institut für Ostseeforschung Warnemünde
What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...
For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.
Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...
At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.
No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...
Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.
Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...
The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...
08.01.2018 | Event News
11.12.2017 | Event News
08.12.2017 | Event News
16.01.2018 | Materials Sciences
16.01.2018 | Materials Sciences
16.01.2018 | Power and Electrical Engineering