The model’s 3 km resolution is significant because it means scientists do not need to use parameterization schemes—a method used to predict the collective effects of many clouds that might exist within a grid box—in the model.
Parameterizations often result in models that underestimate a storm’s intensity, says Brian Etherton, a senior atmospheric scientist at RENCI. Storm intensity also affects the storm track, so RENCI’s model predicts a somewhat different track than the models run by the National Center for Environmental Prediction (NCEP), the National Weather Service division that provides most of the commonly used forecasting products.
“Our model shows Earl coming closer to the coast than the NCEP forecasts,” says Etherton. “The National Weather Service offices in Raleigh, Wilmington and Morehead City are all looking at our output. It is a research tool that we can compare to other models. When the storm is over we can evaluate our model and its value in predicting the track and intensity of Earl.”
The high reolution WRF model was developed in collaboration with Gary Lackmann, an atmospheric scientist at North Carolina State University.
In addition to the WRF model, RENCI scientists are modeling coastal storm surge and waves associated with Hurricane Earl. Those models show that waves up to 4 meters high (more than 12 feet) might occur off the North Carolina coast by Friday. The models will also show storm surge, or the height of water pushed inland by the storm, as the storm moves closer to North Carolina.
All the models are run twice a day using RENCI’s Dell/Intel supercomputer Blue Ridge, which is capable of 8 trillion calculations per second.
View animated loop of Earl’s track: http://www.sensordatabus.org/wrf/Pages/HurNCImagesLoops.aspxAbout RENCI
Karen Green | Newswise Science News
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Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
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Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
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Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.
Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...
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