粤东红海湾海区波侯特征分析

利用遮浪海洋站3a的观测记录,对红海湾海域的波侯进行了分析。结果表明该海区的观测资料前后有差异。海区的波高比较符合两参数的Weibull分布,波浪周期符合对数—正态分布。该海区的波浪类型以风浪为主,其中大浪主要是由风暴引起。平均波周期和平均波高的方根的比例系数为3 87。波高1天滞后的自相关系数为0 42,不平静海面的平均延时符合指数形式。最后用日极值波高数据和二项—对数正态复合极值分布分析了该海区的重现期波高。

Existence and asymptotic behavior of invasion wave solutions in temporally discrete diffusion systems with delays

This paper is concerned with the existence and asymptotic behavior of invasion wave solutions for a time-discrete delayed diffusion competitive system with non-quasimonotone conditions. The existence of invasion wave solution is investigated by applying upper lower solutions method and Schauder＇s fixed point theorem. Further, with the help of Ikeharas＇ theorem, we establish the exponential decay asymptotic behavior of traveling wave solutions at the minus/plus infinity.