海洋科学
海洋科學
해양과학
MARINE SCIENCES
2013年
12期
76-83
,共8页
孙瑞%侯一筠%李健%胡珀
孫瑞%侯一筠%李健%鬍珀
손서%후일균%리건%호박
台风浪%数值模拟%Holland模型%Simulating Waves Nearshore(SWAN)
檯風浪%數值模擬%Holland模型%Simulating Waves Nearshore(SWAN)
태풍랑%수치모의%Holland모형%Simulating Waves Nearshore(SWAN)
typhoon wave%numerical simulation%Holland model,Simulating Waves Nearshore(SWAN)
采用Holland模型将2009年6号台风莫拉菲参数化,并通过一个权重系数将模型风场和背景风场叠加起来,构造了南海北部台风过境时的风场。随后通过时空插值,将该风场以空间分辨率5′×5′、时间步长1 h的精度输入到SWAN(Simulating Waves Nearshore)模式中,模拟了莫拉菲台风通过时南海北部的海浪场。然后使用Jason-2卫星波高数据对模式进行了验证,结果表明模式结果与实测值吻合良好。利用模式结果我们分析了台风中心和海浪场的最大有效波高中心的位置关系,以及台风风场结构和海浪场结构的关系。最后,通过计算海浪场的能量并将其与风要素和浪要素对比,我们研究了台风过境期间海浪场的动力机制。
採用Holland模型將2009年6號檯風莫拉菲參數化,併通過一箇權重繫數將模型風場和揹景風場疊加起來,構造瞭南海北部檯風過境時的風場。隨後通過時空插值,將該風場以空間分辨率5′×5′、時間步長1 h的精度輸入到SWAN(Simulating Waves Nearshore)模式中,模擬瞭莫拉菲檯風通過時南海北部的海浪場。然後使用Jason-2衛星波高數據對模式進行瞭驗證,結果錶明模式結果與實測值吻閤良好。利用模式結果我們分析瞭檯風中心和海浪場的最大有效波高中心的位置關繫,以及檯風風場結構和海浪場結構的關繫。最後,通過計算海浪場的能量併將其與風要素和浪要素對比,我們研究瞭檯風過境期間海浪場的動力機製。
채용Holland모형장2009년6호태풍막랍비삼수화,병통과일개권중계수장모형풍장화배경풍장첩가기래,구조료남해북부태풍과경시적풍장。수후통과시공삽치,장해풍장이공간분변솔5′×5′、시간보장1 h적정도수입도SWAN(Simulating Waves Nearshore)모식중,모의료막랍비태풍통과시남해북부적해랑장。연후사용Jason-2위성파고수거대모식진행료험증,결과표명모식결과여실측치문합량호。이용모식결과아문분석료태풍중심화해랑장적최대유효파고중심적위치관계,이급태풍풍장결구화해랑장결구적관계。최후,통과계산해랑장적능량병장기여풍요소화랑요소대비,아문연구료태풍과경기간해랑장적동력궤제。
In this paper, the Holland model was used to parameterize the No.6 Typhoon Molave in 2009, then the model wind field and the background wind field (CCMP) were overlaped by a weight coefficient to construct the wind field in the north of the South China Sea when the typhoon was passing. The wind field was then interpolated and inputted to the SWAN model with the spatial resolution of 5′×5′and the temporal step of 1 h, to simulate the wave field in the north of the South China Sea when Molave was passing through. Subsequently, the Jason-2 satellite wave height data was utilized to verify the model. The results showed that there was a good agreement between the model results and the measured values. The model results were used to analyze the spatial relationship between the typhoon center and the maximum significant wave height center, as well as the relationship between the structure of the typhoon and that of the wave field. At last, the dynamic mechanism of the wave field when the typhoon was passing was studied by comparing the calculated wave energy with the wind factor and the wave factor.