Abstract
The spectral wave generation and propagation model WAVEWATCH III (WW3) is undergoing rapid development to extend capability and applicability. An option for unstructured grids and implicit solution provides WW3 with the flexibility and efficiency to resolve complex shorelines and high-gradient wave zones to drive nearshore circulation, wave setup, and wave-driven sediment transport with multi-scale spatial coverage over approximately three orders of magnitude. The model is compatible with community-based coupling infrastructure to facilitate two-way coupling with circulation models for simulating hurricane storm surge and waves. Unstructured WW3 is applied for 2019 Hurricane Dorian and validated with National Data Buoy Center buoys and nearshore gauges at the US Army Corps of Engineers Field Research Facility.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/kz9G46xUD0k
Highlights
HURRICANE DORIAN Hurricane Dorian impacted the Bahamas as a Category 5 storm, with maximum one-minute sustained winds of 295 km/h and minimum central pressure of 910 millibars on 1 September 2019
A hybrid approach to parallelization involves spectral partitioning for advection in geographical space and domain decomposition for spectral advection and the source term integration
This study extends the WW3 validation to Hurricane Dorian (2019), including deepwater buoys on the US south Atlantic coast and nearshore gauges at the US Army Corps of Engineers, Coastal and Hydraulics Laboratory, Field Research Facility (FRF) in Duck, North Carolina, USA
Summary
HURRICANE DORIAN Hurricane Dorian impacted the Bahamas as a Category 5 storm, with maximum one-minute sustained winds of 295 km/h and minimum central pressure of 910 millibars on 1 September 2019. WAVEWATCH III ADVANCEMENTS The spectral wave generation and propagation model WAVEWATCH III (WW3) (WW3DG 2019) is undergoing rapid development to extend capability and applicability. An option for unstructured grids and implicit solution provides WW3 with the flexibility and efficiency to resolve complex shorelines and high-gradient wave zones to drive nearshore circulation, wave setup, and wave-driven sediment transport with multi-scale spatial coverage over approximately three orders of magnitude.
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