Instruments:atm

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Atlanta Meteor Wind Radar

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Instrument/Model Description

Between August 1974 and April 1987, the Georgia Tech Radio Meteor Wind Facility was in routine operation, measuring winds between 80 and 100 km over Atlanta, Georgia, USA. A series of technical reports has been published on the measurements (Roper, 1978; 1982; 1984; 1987).

At meteor heights, the viewing area was a slab 400 km in diameter across. Significant results were achieved by averaging from 5 days to 2 weeks of data. The local mean solar time for Atlanta is the Universal Time minus 5 hours and 37 minutes. The tabulations are the result of matching the data against the model developed by Groves (1959). The model assumes cubic variations with height H for prevailing, diurnal and semidiurnal components of the horizontal wind.

Summary plots of the prevailing, diurnal and semidiurnal amplitudes and phases are shown as a function of height for the horizontal winds.

References

Groves, G. V., A therory for determining upper atmosphere winds from radar observations on meteor trails, J. Atmos. Terr. Phys., 16, 344-356, 1959.
Roper, R. G., The measurement of meteor winds over Atlanta (34N, 84W), Radio Sci., 10, 363-369, 1975a.
Roper, R. G., The Georgia Tech Radio Meteor Wind Facility, NSF Final Technical Report, Project GA26626, May 1975b.
Roper, R. G., Winds from the Atlanta (34N, 84W) Radio Meteor Wind Facility, J. Atmos. Terr. Phys., 40., 1978a.
Roper, R. G., Meteor Winds Measured Over Atlanta (34N, 84W), August 1974 - December 1977, NSF Final Technical Report, Project ATM75-14414, July, 1978b.
Roper, R. G., Meteor Winds Measured Over Atlanta (34N, 84W), January 1978 - May 1982, NSF Final Technical Report, Project ATM78-11741, November, 1982.
Roper, R. G., Meteor Winds Measured Over Atlanta (34N, 84W), July 1980 - December 1983, NSF Final Technical Report, Project ATM82-07097, September, 1984. (Note: re-analysis of July 1980 - May 1982 data).
Roper, R. G., Meteor Winds Measured Over Atlanta (34N, 84W), November 1984 - May 1987, NSF Final Technical Report, Project ATM84-13797, November, 1987.

Summary Plots for Atlanta Meteor Wind Radar Tidal Components


-Revised 19 May 2000 by Barbara Emery