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台风浪对航海、海上施工、海洋资源开发等都有着重要影响,本文以具有高精度、高时空分辨率的CCMP(Cross-Calibrated,Multi-Platform)风场驱动目前最新的海浪模式SWAN(Simulating WAves Nearshore),对发生在中国海的5个西行路径台风所致的台风浪进行数值模拟,并分析西行台风浪的特征。结果表明:(1)以CCMP风场驱动SWAN模式,对发生在中国海域的西行台风浪具有较好的模拟能力;(2)从本文统计的几个西行台风来看,近台风中心波高的低值中心主要位于台风中心的南部或西南部。(3)综合几个西行台风,台风浪的大值区并不严格分布于危险半圆(台风前进方向的右侧,即一、四象限),西行台风浪的大浪区主要分布于第一、二象限,大浪区与传统的危险半圆重叠区域主要为第一象限。
Typhoon waves have an important influence on navigation, offshore construction and marine resources development. In this paper, the Cross-Calibrated Multi-Platform (CCMP) wind field with high precision and high space-time resolution is used to drive the latest SWAN (Simulating WAves) Nearshore) to simulate the typhoon waves caused by the typhoon of five westbound routes in the China Sea, and to analyze the characteristics of the typhoon waves in the west. The results show that: (1) SWAN mode driven by CCMP wind field has better simulation capability for typhoon waves over western China; (2) From the statistics of several western typhoons observed in this paper, the wave height near typhoon center is low The value center is mainly located in the south or southwest of the typhoon center. (3) Combining several typhoons in the west, typhoon wave large value areas are not strictly distributed in dangerous semicircles (the right side of the typhoon heading direction, that is, the first quadrant and the fourth quadrant). The big wave area of the western typhoon waves is mainly distributed in the first and second The quadrant, big wave area and traditional dangerous semicircle overlap area mainly for the first quadrant.