A Possible Mechanism of Superrotation of the Atmosphere of Venus

作者: M. N. Izakov

DOI: 10.1023/A:1010540016169

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摘要: A hypothesis is proposed for the mechanism of superrotation atmosphere Venus involving following processes. Winds near planet's surface, making up part Hadley cell, flow past surface relief and excite internal atmospheric gravity waves. While moving upward, these waves become unstable collapse generating turbulent eddies. Some portion energy eddies transferred to a two-dimensional flow, which maintained also at expense instability large-scale motions. In this inverse cascade (transition from smaller larger eddies), or negative viscosity, appears as key element mechanism. Large-scale quasi-two-dimensional transfer their Rossby planetary which, in turn, transmit it zonal flow. Based on existing experimental data, time period over established, well vertical horizontal eddy viscosity coefficients, estimated. parallel, arguments favor are obtained.

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