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Tromso MF Radar


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The Tromso MF radar is operated by the University of Tromsoh (Tromso Geophysical Observatory) and the University of Saskatchewan (Institute of Space and Atmospheric Studies) with support from the Natural Sciences and Engineering Research Council (NSERC) of Canada. It contributes data as part of the joint TIMED-CEDAR program of the National Aeronautics and Space Administration (NASA) and the National Science Foundation (NSF).

Data Description

These are the analyzed data on the neutral winds in the mesosphere and lower thermosphere during or including the LTCS-2 period, 5-10 December 1988. This condensed format is consistent with the analyzed data from other sites as well, and is prepared in order to facilitate research work. However, users need to inform the data suppliers that they are using the data in case of updates or changes, and to insure that the data are being used and interpreted properly.

The Tromso MF radar is located in Norway (70 N, 19 E). The mean solar local time (SLT) is Universal Time (UT) plus 1 hour and 18 minutes. (SLT = UT + 1:18). The phases are in SLT and the measurement days start at 0 UT. The Tromso MF radar data is obtained and analyzed by the Saskatoon MF radar scientists, and has provided considerable mean winds (Manson et al., 1990a and 1991a) and tidal data (Manson et al, 1989). LTCS-1 and LTCS-2 are described for all middle atmosphere radars in Manson et al. (1990b, 1991b). MF radars use the spaced antenna method. Harmonic analysis is applied to hourly mean winds (weighted by data yield per hour) at individual heights to obtain tides for the prime LTCS or stated intervals. Typical standard deviations for means, 12-hour and 24-hour tides are in the above LTCS papers. Tides of the month for Tromso are means of 4-day fits (the amplitudes are arithmetic means). Data up to 99 km are real heights --- above, they are from the E-region, a layer about 5 km centered near 102 km.


A. H. Manson, C. E. Meek, H. Teitelbaum, F. Vial, R. Schminder, D. Kurschner, M. J. Smith, G. J. Fraser, and R. R. Clark, Climatologies of semi-diurnal and diurnal tides in the middle atmosphere (70-110 km) at middle latitudes (40-50), J. Atmos. Terr. Phys., 51, pp 579-593, 1989.
A. H. Manson, C. E. Meek, and R. A. Vincent, Comparison between referenced atmosphere winds and radar winds from selected locations, Adv. Space Res., Vol 10, No. 12, pp 233-244, 1990a.
A. H. Manson, C. E. Meek, R. Schminder, D. Kurschner, R. R. Clark, H. G. Muller, R. A. Vincent, A. Phillips, G. J. Fraser, W. Singer, and E. S. Kazimirovsky, Tidal winds from the MLT global radar network during the first LTCS campaign -- September 1987, J. Atmos. Terr. Phys., 52, pp 175-183, 1990b.
A. H. Manson, C. E. Meek, E. Fleming, S. Chandra, R. A. Vincent, A. Phillips, S. K. Avery, G. J. Fraser, M. J. Smith, J. L. Fellous, and M. Massebeuf, Comparisons between satellite-derived gradient winds and radar-derived winds from the CIRA-86, J. Atmos. Sci., 48, pp 411-428, 1991a.
A. H. Manson, C. E. Meek, S. K. Avery, G. J. Fraser, R. A. Vincent, A. Phillips, R. R. Clark, R. Schminder, D. Kurschner, and E. S. Kazimirovsky, Tidal winds from the mesosphere, lower thermosphere global radar network during the second LTCS campaign: December 1988, J. Geophys. Res., 96, pp 1117-1127, 1991b.

Summary Plots for Tromso MF Radar

-Revised 08 Jun 2004 by Barbara Emery