Great Lakes Waves Forecast System on High-Resolution Unstructured Meshes.

Autor: Abdolali, Ali, Banihashemi, Saeideh, Henrique Alves, Jose, Roland, Aron, Hesser, Tyler J., Bryant, Mary Anderson, Smith, Jane McKee
Předmět:
Zdroj: Geoscientific Model Development Discussions; 9/27/2023, p1-22, 22p
Abstrakt: Wind-wave forecasts play a crucial role in the Great Lakes region towards ensuring the safety of communities, enhancement of the economy and protection of property. Modeling wind waves in closed and relatively shallow basins with complex bathymetry like the Great Lakes is a challenge that is successfully tackled by using variable-resolution triangular unstructured meshes. In this paper, we discuss recent advances in developing unstructured-mesh capabilities as part of the spectral wave model WAVEWATCH III, in the context of National Oceanic and Atmospheric Administration (NOAA) operational requirements such as model robustness, efficiency, and accuracy. We revisit the history of developments leading to the transition from rectilinear, to curvilinear grids, and finally to an unstructured mesh version of NOAA's operational Great Lakes wave-modeling system (GLWUv2.0). Our results describe the development of the operational GLWUv2.0, from mesh design and scalability analysis to validation and verification for hindcast of storm cases and reforecast using 4 months of retrospective simulations. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index