论文信息 - Variability Of Cn2 At Poker Flat, Alaska, From Mesosphere, Stratosphere, Troposphere (MST) Doppler Radar Observations

Variability Of Cn2 At Poker Flat, Alaska, From Mesosphere, Stratosphere, Troposphere (MST) Doppler Radar Observations

We examine the seasonal, day-to-day, and diurnal fluctuations of Cn2 using data from the MST radar at Poker Flat, Alaska. The radar has been operated in a nearly continuous mode since early 1979, with profiles recorded every 2-4 minutes. The results for Cn2 are pre-sented at about 2 km height intervals from 4 to 20 km. It is found that the mean values of Cn2 are about 10 dB larger in summer than in winter at all levels. The diurnal range is about 3 dB in the troposphere during all seasons, and varies in the stratosphere from about 10 dB during winter to 16 dB during summer. The relationship of mean Cn2 with meteorologi-cal variables is discussed.

Kenneth S. Gage | B. B. Balsley | G. D. Nastrom

[1] B. B. Balsley,et al. On the scattering and reflection mechanisms contributing to clear air radar echoes from the troposphere, stratosphere, and mesophere , 1980 .

[2] P. E. Johnston,et al. The MST radar at Poker Flat, Alaska , 1980 .

[3] H. Óttersten,et al. Atmospheric Structure and Radar Backscattering in Clear Air , 1969 .

[4] Earl E. Gossard,et al. Refractive index variance and its height distribution in different air masses , 1977 .

[5] K. S. Gage,et al. Use of Doppler radar for the measurement of atmospheric turbulence parameters from the intensity of clear‐air echoes , 1980 .

[6] K. Gage,et al. Atmospheric Measurements by VHF Pulsed Doppler Radar , 1979, IEEE Transactions on Geoscience Electronics.

[7] B. B. Balsley,et al. Doppler Radar Probing of the Clear Atmosphere , 1978 .

[8] K. S. Gage,et al. Vertical profiles of refractivity turbulence structure constant: Comparison of observations by the Sunset Radar with a new theoretical model , 1978 .