Atmospheric frontal gravity waves observed in satellite SAR images of the Bohai Sea and Huanghai Sea
 
LIU Shuming[1,2] LI Ziwei[3] YANG Xiaofeng[3] Pichel William G[4] YU Yang[1] ZHENG Quanan[5] LI Xiaofeng[6]

关键词:Atmospheric gravity waves,atmospheric front,generation mechanism,synthetic apertureradar
 
主要内容:In the satellite synthetic aperture radar(SAR) images of the Bohai Sea and Huanghai Sea,the authors observe sea surface imprints of wave-like patterns with an average wavelength of 3.8km.Comparing SAR observations with sea surface wind fields and surface weather maps,the authors find that the Occurrence of the wave-like phenomena is associated with the psasing of atmospheric front.The authors define the waves as atmospheric frontal gravity waves.The dynamical parameters of the wave packets are derived from statistics of 9 satellite SAR images obtained from 2002 to 2008.A two-dimensional linear physical wave model isused to analyze the generation mechanism of the waves.The atmospheric frontal wave induced wind variation across the frontal wave packet is compared with wind retrievals from the SAR images.......
 
《海洋学报:英文版》  2010(5).-35-43
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