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Proceedings Paper

Solitary coastal lee waves observed from space
Author(s): Quanan Zheng; Xiao-Hai Yan; V. Klemas; Zongming Wang; Chung-Ru Ho; Nan-Jung Kuo
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Paper Abstract

Alternating dark-bright patterns along the coast on Landsat MSS and the ERS-1 SAR images were recognized to be the image of a coastal lee wave. Such waves are called coastal lee waves because they occur along the lee side of the coast. The first case was noted in the offshore area of the Delaware Bay in the middle Atlantic Bight shown as a wave- like cloud pattern on MSS images taken in December 14, 1975. The second case was detected by the ERS-1 SAR shown on the image of the Taiwan Strait taken on December 8, 1994. The average wavelength is 2 km, ranging from 0.3 km to 4.2 km. The crest lines with length from 20 km to more than 100 km are generally parallel to the coastline. The horizontal distribution range is a band 20 km wide, 20-100 km offshore. The vertical extent of the disturbance reaches from the ocean surface to the top of cumulus. The waves manifest solitary characteristics. The seasonal land-breeze circulation is being proposed as a major generation mechanism for the observed lee waves.

Paper Details

Date Published: 6 February 1997
PDF: 6 pages
Proc. SPIE 2963, Ocean Optics XIII, (6 February 1997); doi: 10.1117/12.266423
Show Author Affiliations
Quanan Zheng, University of Delaware (United States)
Xiao-Hai Yan, University of Delaware (United States)
V. Klemas, University of Delaware (United States)
Zongming Wang, University of Delaware (United States)
Chung-Ru Ho, National Taiwan Ocean University (Taiwan)
Nan-Jung Kuo, National Taiwan Ocean University (Taiwan)

Published in SPIE Proceedings Vol. 2963:
Ocean Optics XIII
Steven G. Ackleson; Robert J. Frouin, Editor(s)

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