江蘇沿海臺風浪數值模擬
發(fā)布時間:2018-12-31 09:52
【摘要】:構建CCMP再分析風場與Holland經驗臺風風場的疊加風場作為海浪的驅動風場,建立SWAN自嵌套模型對影響江蘇沿海的典型臺風"梅花"引起的臺風浪過程進行模擬。在得出風場疊加方式的基礎上,設計3種訂正系數方案及3種權重系數方案共9種風場構建方案,分別對東中國海進行臺風浪模擬并結合Jason-1衛(wèi)星高度計觀測的有效波高數據進行比較分析,實驗結果顯示各方案有效波高的相對誤差最大可相差3%。選取最佳方案的模擬結果為嵌套區(qū)域提供波譜邊界條件,對嵌套區(qū)域的模擬結果表明:模擬值與浮標實測資料吻合較好;臺風經過江蘇沿海期間,近岸海域最大波高可達5~6 m,中北部海域波浪以涌浪為主,而南部海域則以風浪為主。
[Abstract]:The CCMP reanalysis wind field and the Holland empirical typhoon wind field are constructed as the driving wind field of the waves, and the SWAN self-nested model is established to simulate the typhoon wave process caused by typical typhoon "Meihua" in the coastal area of Jiangsu Province. On the basis of the wind field superposition mode, three revised coefficient schemes and three weight coefficient schemes are designed, and nine wind field construction schemes are designed. The typhoon wave simulation in the East China Sea and the data of effective wave height observed by Jason-1 satellite altimeter are compared and analyzed respectively. The experimental results show that the maximum relative error of the effective wave height of each scheme can be 3. The simulation results of the optimal scheme provide spectral boundary conditions for the nested regions. The simulation results of the nested regions show that the simulated values are in good agreement with the measured data of the buoys. In the coastal area of Jiangsu Province, the maximum wave height in the coastal waters of Jiangsu Province can reach 5 ~ 6 m, the waves in the central and northern sea areas are mainly surges, while in the southern waters, the waves are mainly wind waves.
【作者單位】: 蘇交科集團股份有限公司;河海大學海岸災害及防護教育部重點實驗室;
【基金】:國家海洋局海洋公益性行業(yè)科研專項項目(201205005) 國家自然科學基金項目(41276017)
【分類號】:P731.2;P732.3
本文編號:2396406
[Abstract]:The CCMP reanalysis wind field and the Holland empirical typhoon wind field are constructed as the driving wind field of the waves, and the SWAN self-nested model is established to simulate the typhoon wave process caused by typical typhoon "Meihua" in the coastal area of Jiangsu Province. On the basis of the wind field superposition mode, three revised coefficient schemes and three weight coefficient schemes are designed, and nine wind field construction schemes are designed. The typhoon wave simulation in the East China Sea and the data of effective wave height observed by Jason-1 satellite altimeter are compared and analyzed respectively. The experimental results show that the maximum relative error of the effective wave height of each scheme can be 3. The simulation results of the optimal scheme provide spectral boundary conditions for the nested regions. The simulation results of the nested regions show that the simulated values are in good agreement with the measured data of the buoys. In the coastal area of Jiangsu Province, the maximum wave height in the coastal waters of Jiangsu Province can reach 5 ~ 6 m, the waves in the central and northern sea areas are mainly surges, while in the southern waters, the waves are mainly wind waves.
【作者單位】: 蘇交科集團股份有限公司;河海大學海岸災害及防護教育部重點實驗室;
【基金】:國家海洋局海洋公益性行業(yè)科研專項項目(201205005) 國家自然科學基金項目(41276017)
【分類號】:P731.2;P732.3
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