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Titolo:
Has wind-wave modeling reached its limit?
Autore:
Liu, PC; Schwab, DJ; Jensen, RE;
Indirizzi:
NOAA, Great Lakes Environm Res Lab, Ann Arbor, MI 48105 USA NOAA Ann Arbor MI USA 48105 kes Environm Res Lab, Ann Arbor, MI 48105 USA USA, Corps Engineers, Coastal & Hydraul Lab, Vicksburg, MS 39180 USA USA Vicksburg MS USA 39180 Coastal & Hydraul Lab, Vicksburg, MS 39180 USA
Titolo Testata:
OCEAN ENGINEERING
fascicolo: 1, volume: 29, anno: 2002,
pagine: 81 - 98
SICI:
0029-8018(200201)29:1<81:HWMRIL>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
PREDICTION MODEL; LAKE ERIE;
Keywords:
wind waves; wave modeling; ocean waves; WAM model;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
14
Recensione:
Indirizzi per estratti:
Indirizzo: Liu, PC NOAA, Great Lakes Environm Res Lab, 2205 Commonwealth Blvd, Ann Arbor, MI 48105 USA NOAA 2205 Commonwealth Blvd Ann Arbor MI USA 48105 r, MI 48105 USA
Citazione:
P.C. Liu et al., "Has wind-wave modeling reached its limit?", OCEAN ENG, 29(1), 2002, pp. 81-98

Abstract

This article uses a comparison of four different numerical wave predictionmodels for hindcast wave conditions in Lake Michigan during a 10-day episode in October 1988 to illustrate that typical wave prediction models based on the concept of a wave energy spectrum may have reached a limit in the accuracy with which they can simulate realistic wave generation and growth conditions. In the hindcast study we compared the model results to observed wave height and period measurements from two deep water NOAA/NDBC weather buoys and from a nearshore Waverider buoy. Hourly wind fields interpolated from a large number of coastal and overlake observations were used to drive the models. The same numerical grid was used for all the models. The resultsshow that while the individual model predictions deviate from the measurements by various amounts, they all tend to reflect the general trend and patterns of the wave measurements. The differences between the model results are often similar in magnitude to differences between model results and observations. Although the four models tested represent a wide range of sophistication in their treatment of wave growth dynamics, they are all based on the assumption that the sea state can be represented by a wave energy spectrum. Because there are more similarities among the model results than significant differences, we believe that this assumption may be the limiting factor for substantial improvements in wave modeling. (C) 2001 Published by Elsevier Science Ltd.

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Documento generato il 05/07/20 alle ore 12:31:36