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Title: High-Resolution Regional Wave Hindcast for Hawaii

Abstract

This report summarizes modeling efforts for hindcasting of wave climate within the exclusive economic zone (EEZ) around the state of Hawaii. Specifically, the report provides detailed description of model mesh development, sensitivity analysis of the configuration of model parameters, data used for model forcing and validation, model skill assessment, and model outputs for resource characterization. The unstructured, nested-grid modeling approach incorporates a regional high-resolution SWAN (Simulating WAves Nearshore) model within the global-regional WAVEWATCH III® (WW3) wave model. The models were configured to comply with the International Electrotechnical Commission (IEC) Technical Standards for wave energy resource characterization. The SWAN model domain covers the entire EEZ with a spatial resolution of approximately 300 m in the nearshore region. Two levels of WW3 nested grids, from 0.5 arc-degree at global to 7.5 arc-minute at regional scale, were used to provide boundary conditions that drive the high-resolution nearshore SWAN model. The WW3 and SWAN models were forced by 0.5 arc-degree Climate Forecast System Reanalysis wind and 5 km regional Weather Research and Forecasting wind, respectively. Wave resource and bulk wave parameters were simulated for a 32-year period from 1979 to 2010, and were subsequently validated using wave buoy data within the model domain. Modelmore » performance was evaluated using a set of error statistics. Overall, the model shows good skills in reproducing the wave climate in the Hawaii EEZ in both spatial and temporal domains. Comparisons of time series and scatter plots for the six IEC resource parameters and the associated error statistics tables, and horizontal two-dimensional plots of annually averaged and monthly averaged IEC parameters are provided.« less

Authors:
ORCiD logo [1];  [1];  [2];  [2];  [1]; ORCiD logo [1]
  1. BATTELLE (PACIFIC NW LAB)
  2. University of Hawaii at Manoa
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1572913
Report Number(s):
PNNL-29370
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English

Citation Formats

Garcia Medina, Gabriel, Yang, Zhaoqing, Li, Ning, Cheung, Kwok F., Wang, Taiping, and Wu, Wei-Cheng. High-Resolution Regional Wave Hindcast for Hawaii. United States: N. p., 2019. Web. doi:10.2172/1572913.
Garcia Medina, Gabriel, Yang, Zhaoqing, Li, Ning, Cheung, Kwok F., Wang, Taiping, & Wu, Wei-Cheng. High-Resolution Regional Wave Hindcast for Hawaii. United States. doi:10.2172/1572913.
Garcia Medina, Gabriel, Yang, Zhaoqing, Li, Ning, Cheung, Kwok F., Wang, Taiping, and Wu, Wei-Cheng. Fri . "High-Resolution Regional Wave Hindcast for Hawaii". United States. doi:10.2172/1572913. https://www.osti.gov/servlets/purl/1572913.
@article{osti_1572913,
title = {High-Resolution Regional Wave Hindcast for Hawaii},
author = {Garcia Medina, Gabriel and Yang, Zhaoqing and Li, Ning and Cheung, Kwok F. and Wang, Taiping and Wu, Wei-Cheng},
abstractNote = {This report summarizes modeling efforts for hindcasting of wave climate within the exclusive economic zone (EEZ) around the state of Hawaii. Specifically, the report provides detailed description of model mesh development, sensitivity analysis of the configuration of model parameters, data used for model forcing and validation, model skill assessment, and model outputs for resource characterization. The unstructured, nested-grid modeling approach incorporates a regional high-resolution SWAN (Simulating WAves Nearshore) model within the global-regional WAVEWATCH III® (WW3) wave model. The models were configured to comply with the International Electrotechnical Commission (IEC) Technical Standards for wave energy resource characterization. The SWAN model domain covers the entire EEZ with a spatial resolution of approximately 300 m in the nearshore region. Two levels of WW3 nested grids, from 0.5 arc-degree at global to 7.5 arc-minute at regional scale, were used to provide boundary conditions that drive the high-resolution nearshore SWAN model. The WW3 and SWAN models were forced by 0.5 arc-degree Climate Forecast System Reanalysis wind and 5 km regional Weather Research and Forecasting wind, respectively. Wave resource and bulk wave parameters were simulated for a 32-year period from 1979 to 2010, and were subsequently validated using wave buoy data within the model domain. Model performance was evaluated using a set of error statistics. Overall, the model shows good skills in reproducing the wave climate in the Hawaii EEZ in both spatial and temporal domains. Comparisons of time series and scatter plots for the six IEC resource parameters and the associated error statistics tables, and horizontal two-dimensional plots of annually averaged and monthly averaged IEC parameters are provided.},
doi = {10.2172/1572913},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {11}
}