基于微结构图像的风生微尺度波频率谱初探

贾永君; 张杰; 王岩峰

基于微结构图像的风生微尺度波频率谱初探

1.
中国科学院海洋研究所,山东青岛 266071;中国科学院研究生院,北京 100049
2.
国家海洋局第一海洋研究所,山东青岛 266061

基金项目: 海面局部图像微尺度波谱计算方法 (60372077)资助项目。

计量
- 文章访问数: 1371
- HTML全文浏览量: 6
- PDF下载量: 1306
- 被引次数: 0
出版历程
- 收稿日期: 2009-04-07

The preliminary study on the frequency spectrum of wind-generated microscale waves based on microstructure image

1.
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071,China;Graduate School, Chinese Academy of Sciences, Beijing 100039,China
2.
First Institute of Oceanography, State Oceanic Administration, Qingdao 266061,China

摘要

摘要: 利用海面微结构光学测量装置实验获取到的微尺度波图像来给出风生微尺度波的波数谱,在此基础上利用频散关系建立微尺度波波数谱和频率谱之间的关系,最终得到微尺度波频率谱。对微尺度波的频率谱随频率变化的响应进行了研究,发现频率谱与频率的α次方成正比关系,α的值随风速的增加而增加,同一风速下α几乎为定值。
- 频率谱 /
- 微结构图像 /
- 微尺度波
Abstract: The frequency spectrum of wind-generated microscale waves is brought forward using the color image collected by a sea surface microstructure optical measuring device. And on this basis, the relationship between the wave number spectrum and frequency spectrum of the microscale waves can be established utilizing dispersion relations of capillary gravity waves. Furthermore, the response of the frequency spectrum of the microscale waves to the change of frequency is studied. It can be found that the frequency spectrum of the microscale waves is proportional to the power of α of frequency and that the value of α which is unique at the same speed increases with speed.
- frequency spectrum /
- microstructure image /
- microscale waves

HTML全文

参考文献(12)

COX C S. Measurement of slopes of high-frequency wind waves [J]. J Marine Res, 1958, 16(3): 198-227.

MITSUYASU Hisashi. Measurement of the high-frequency spectrum of ocean surface wave[J]. Journal of Physics Oceanography, 1977, 7: 882-891.

ZHANG Xin. Wavenumber spectrum of short wind waves: an application of two-dimensional slepian windows to spectral estimation[J]. Journal of Atmospheric and Oceanic Technology, 1994, 11: 489-505

贾永君. 海面微结构图像数据处理算法与系统集成 . 青岛:国家海洋局第一海洋研究所, 2007.

菲利普斯 O M. 上层海洋动力学[M]. 徐德伦,李心铭译. 北京:科学出版社,1983: 103-110.

张福元,张杰,王岩峰, 等. 基于小波分析的微尺度波斜率波数谱计算[J]. 电子学报, 2009, 37(7): 1532-1535.

宋平舰, 张杰. 二维经验模分解在海洋遥感图像信息分离中的应用[J]. 高技术通讯, 2001, 11(9): 62-67.

贾永君, 张杰, 王岩峰, 等. 颜色编码方法中波面斜率的校准[J]. 高技术通讯, 2008, 18(1): 65-70.

TOBA Yoshiaki. Local balance in the air-sea boundary processes: Ⅲ. On the spectrum of wind waves[J]. Journal of the Oceanographical Society of Japan, 1973, 29: 209-220.

MITSUYASU Hisashi, HONDA Tadao. The high frequency of wind-generated waves [J]. Journal of the Oceanographical Society of Japan, 1974, 30: 185-198.

徐丰, 贾复. 风生短波谱的实验研究[J]. 实验力学, 1999, 14(2): 136-141.

JIA Yong-jun, ZHANG Jie, WANG Yan-feng. Slope wave-number spectrum models of capillary and capillary-gravity waves [J]. Chinese Journal of Oceanology and Limnology, 2010, 28(2): 359-363.

施引文献

资源附件(0)

访问统计