SAR IMAGING OF WAVES IN WATER AND ICE - EVIDENCE FOR VELOCITY BUNCHING

被引：53

作者：

LYZENGA, DR ^{[1
]}

SHUCHMAN, RA ^{[1
]}

LYDEN, JD ^{[1
]}

RUFENACH, CL ^{[1
]}

机构：

[1] NOAA,ENVIRONM RES LAB,WAVE PROPAGAT LAB,BOULDER,CO 80303

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS | 1985年 / 90卷 / NC1期

关键词：

GRAVITY WAVES - Imaging Techniques - ICE - Imaging Techniques - OCEANOGRAPHY - Remote Sensing - RADAR - Synthetic Aperture;

D O I：

10.1029/JC090iC01p01031

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

Synthetic aperture radar (SAR) images collected over the Arctic marginal ice zone show gravity were patterns in both the open water and the ice. Diffuse wave patterns are invisible in the water at near range (small incidence angles), while more distinct wave patterns are visible in the ice across the entire swath. The wave patterns in the ice appear as bright lines rather than sinusoidal intensity variations. Additionally, the images show a periodic displacement of the ice/water boundary, apparently due to Doppler shift effect associated with the gravity wave orbital motions. These observations are interpreted as evidence for the velocity bunching effect and also illustrate the effects of random scatterer motions in the open water.

引用

页码：1031 / 1036

页数：6

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