منابع مشابه
Observed Growth of Langmuir Circulation
Surface velocity patterns and upper ocean density profiles are presented from a period following a sudden increase in wind. A prior wind speed of 8 m/s failed to produce visible signs of Langmuir circulation. After the wind speed increased to 13 m/s, Langmuir circulation developed within 15 min. The initial scale observed was about 16 m, streak to streak, and may have been restricted by the dep...
متن کاملChapter 19 DOPPLER SONAR OBSERVATIONS OF LANGMUIR CIRCULATION
It has become increasingly clear that air-sea coupling is important to the earth's weather and climate [e.g., Grotzner et al. 1998, Xu et al. 1998]. The oceanic surface mixed layer is the link by which the air and sea are coupled. Further, the form and strength of the mixing motion are important to important concerns such as the fluxes of gases and nutrients and the growth and health of marine ...
متن کاملEvolution of Langmuir circulation during a storm
Wind stress, waves, stratification, velocity profiles, and surface fields of radial velocity and acoustic backscatter intensity were measured along a drift track 50 to 150 km off Point Arguello, California. On March 8, 1995, the wind increased from calm to 12 rn/s from the SE, opposing swell from the NW. It increased to15 rn/s at noon UTC on March 9, remained steady over the next 12 hours, brie...
متن کاملObservations and Theories of Langmuir Circulation: A Story of Mixing
The study of Langmuir circulation has a strongly interdisciplinary history; the first half of this work is a brief and eclectic review of this. Much of the research has been motivated by interest in the biology and chemistry of the mixed layer. These, in turn, are sensitive to details of typical particle trajectories; i.e., to high-order statistics of the flow such as time and space lagged cova...
متن کاملObservations of Langmuir Circulation, Waves and the Mixed Layer
Abstract. Doppler sonar observations of surface velocity are analysed to extract an rms velocity scale related to flow patterns persisting for at least a minute, and having advection velocities within an adjustable "window" of the mean advection rate. The resulting velocity scale is related to the wind and waves over the course of the twenty days available from the SWAPP data set. The correlati...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1990
ISSN: 0001-4966
DOI: 10.1121/1.2028587