台风眼

汶川5.12地震中的心理台风眼效应

Psychological Typhoon Eye in 2008 Wenchuan Earthquake of May 12

台风眼的数值模拟试验

Numerical simulation of the typhoon eye

台风眼壁附近等相当位温面的突然异常密集陡立和有效位能的激增预示着台风有加强的可能，CISK正反馈机制和涡旋Rossby波传播是台风加强的可能原因。

The abrupt dense of potential temperature isopleths and the great increase of CAPE in the wall of typhoon indicate that the typhoon would enhance possibly . The CISK positive feedback mechanism and vortex Rossby wave may be a possible reason for typhoon enhance .

原始的台风云图由于种种原因可能对比度较差，不利于台风眼的准确提取。

The contrast of original typhoon cloud image is poorer due to various reasons and it is not good for typhoon eye extraction .

配合此处模式模拟得到的水汽中心，为台风眼壁区的强风暴、降雨创造了条件。

These ascent motions are just at the center of modeled water vapor fields , which leading to severe storm and rainfall at eye wall of typhoon .

台风Winnie1997的眼直径为370km，是有观测以来发现的最大台风眼之一。

Typhoon Winnie 1997 was one of the hurricanes that had extremely largest eyewall ever recorded . The diameter of Winnie 's eyewall reached 370 km .

但是，据近来台风环流中尺度结构的观测结果，实际大气中，台风眼墙或外区有时存在2-3个中尺度涡构成的涡列。

However , in real atmosphere , there exists vortex street made of two or three mesoscale vortices in typhoon eye-wall or outer region according to circulation of mesoscale structure observations .

在无眼台风的二维风场计算中，先根据同一台风的有眼图像的大小人工构造眼壁，从而可以进行与有眼台风一致的后续计算步骤。

When calculating the two-dimensional wind field of non-eyed typhoon , we first construct the eye-wall manually according to the size of eyed typhoon images from the same typhoon , and then it does the same next steps like the eyed typhoon images .

作者普查了1949&1983年35年的观测资料，得到76个同心双眼台风，发现在西北太平洋地区强台风中，常常可以观测到这种结构的台风眼，而且它与台风的自身强度也有密切的关系。

Altogether 76 double-eye typhoons were observed during 1949-1983 . The results reveal that the concentric double-eye structure , generally appearing in the intense typhoons over the Western North Pacific Ocean , is closely related to typhoon 's intensity .

台风在台湾滞留期间，台风中心由于低层云的发展使得卫星云图上原先清晰可见的台风眼变得模糊不清。

During the period of typhoon HERB staying near Taiwan , the lower cloud was developed in the eye region so that made the previous clear typhoon eye on the satellite pictures becoming fuzzy .

本文结合偏微分方程和机器学习等智能信息处理技术研究台风风场的反演方法，主要包括以下四个方面的研究工作：（1）基于偏微分方程的台风眼提取。

This paper researches the method of typhoon wind field retrieval based on the techniques of partial differential equation , machine learning and so on . The main work of this paper includes four aspects as follows : ( 1 ) Typhoon eye extraction by partial differential equations .