Nelson Tull wins Student Poster Award

CCHT MS student Nelson Tull won the Student Poster Award at the ASBPA National Coastal Conference 2017. This award is chosen by attendees from among all of the student posters and is reflective of both compelling research activities and excellent presentation skills.

Congratulations to Nelson!

Nelson Tull accepts the Student Poster Award during the awards luncheon at the ASBPA National Coastal Conference.

Poster: ASBPA Coastal Conference 2017

N Tull, JC Dietrich, TE Langan, H Mitasova, BO Blanton, JG Fleming, RA Luettich. “Improving Accuracy of Real-Time Storm Surge Inundation Predictions Using GRASS GIS.” ASBPA National Coastal Conference 2017, Fort Lauderdale, Florida, 25 October 2017.

Poster presented by Nelson Tull at the ASBPA National Coastal Conference 2017.

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Sensitivity of Storm Surge Predictions to Atmospheric Forcing during Hurricane Isaac

Storm surge and overland flooding can be predicted with computational models at high levels of resolution. To improve efficiency in forecasting applications, surge models often use atmospheric forcing from parametric vortex models, which represent the surface pressures and wind fields with a few storm parameters. The future of storm surge prediction could involve real-time coupling of surge and full-physics atmospheric models; thus, their accuracies must be understood in a real hurricane scenario. The authors compare predictions from a parametric vortex model (using forecast tracks from the National Hurricane Center) and a full-physics coupled atmosphere-wave-ocean model during Hurricane Isaac (2012). The predictions are then applied within a tightly coupled, wave and surge modeling system describing the northern Gulf of Mexico and the floodplains of southwest Louisiana. It is shown that, in a hindcast scenario, a parametric vortex model can outperform a data-assimilated wind product, and given reasonable forecast advisories, a parametric vortex model gives reasonable surge forecasts. However, forecasts using a full-physics coupled model outperformed the forecast advisories and improved surge forecasts. Both approaches are valuable for forecasting the coastal impacts associated with tropical cyclones

JC Dietrich, A Muhammad, M Curcic, A Fathi, CN Dawson, SS Chen, RA Luettich (2018). “Sensitivity of Storm Surge Predictions to Atmospheric Forcing during Hurricane Isaac.Journal of Waterway, Port, Coastal, and Ocean Engineering, 144(1), DOI: 10.1061/(ASCE)WW.1943-5460.0000419

News: Summer Research Experience

2017/09/28 – DHS CRCoE
Students participate in second annual summer exchange program

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Summer activities also included a one-day exchange where students from Johnson C. Smith University (JCSU) in Charlotte, N.C., visited North Carolina State University (NCSU). Nine students enrolled in a summer research program led by Dr. Hang Chen visited the NCSU Department of Civil, Construction, and Environmental Engineering (CCEE), where CRC PI Dr. Casey Dietrich exposed the students to the concepts of computing-intensive and coastal resilience research.

The visiting students learned about the CCCE department, along with summer and graduate program opportunities. Dr. Dietrich arranged presentations and discussions with faculty members in their computing and system group. Ten faculty members presented their interdisciplinary research projects addressing problems throughout civil and environmental engineering using computational tools. The JCSU students also interacted with Dr. Dietrich’s graduate students and learned more about their individual research projects.