The winds LF wind to November 2008 are calculated using a regression analysis without including the diunal tide, without height resolution and without outlier rejection. Fore many purposes these data thus may only serve as coarse estimates. A documentation is found here. You may, however, also be interested in the monthly reports.
If you should use the data in a publication, please acknowledge our institute
(„Collm wind data were contributed by the Institute for Meteorology, University
of Leipzig“, or something like that). Possible references are, for example:
| Daily data | Jacobi, Ch., R. Schminder, D. Kürschner, 1998: Planetary wave activity obtained from long- term (2-18 days) variations of mesopause region winds over Central Europe (52 N, 15 E). J. Atmos. Solar-Terr. Phys. 60, 81 - 93. |
| Monthly means | Jacobi, Ch., R. Schminder, D. Kürschner, J. Bremer, K.M. Greisiger, P. Hoffmann, und W. Singer, 1997: Long-term trends in the mesopause wind field obtained from D1 LF wind measurements at Collm, Germany. Adv. Space Res. 20, 2085 - 2088. |
If your work should mainly or exclusively base on the analysis of our data, we would also prefer collaborative working, with one of our working group being involved. Please contact us in this case (Christoph Jacobi). The wind data are available in 3 different ASCII data files:
| Data | Format | Example |
| Daily zonal
(voz)
and meridional (vom) prevailing winds and zonal semidiurnal tidal amplitudes
(v2z)
and phases (T2z, in LT=UT+1)
Note: These data are only preliminary, the daily means contain planetary wave information, and the height may vary during one night. The data should be used with care. |
Day, Month, Year, approx. Time (always 0 UT), voz, vom, v2z, T2z, N (number of half- hourly means used for analysis). N = 0 means that the wind data are linearly interpolated. | 12 8 79 0
19.9 -14.6 13.0 7.2
17 13 8 79 0 17.2 -10.7 13.8 7.0 0 14 8 79 0 14.5 -6.7 14.6 6.7 18 15 8 79 0 11.5 13.0 24.3 5.7 18 16 8 79 0 18.4 -1.9 19.5 7.4 18 |
| Daily wind data, but calculated on a 5-day database each | see above | see above |
| Monthly mean winds, calculated from half-hourly monthly median zonal and meridional winds. | Month, Year, Height (-1 if not available), voz, vom, v2z, T2z | 7 82 -1 14.8
-8.2 8.5 7.1 8 82 -1 14.9 -4.6 14.9 6.8 9 82 90 6.7 -3.8 18.4 6.2 10 82 93 -1.5 -3.1 2.3 12.1 |
We may also calculate monthly mean profiles (until 2007), diurnal tides, and additional variations as the quasi 2-day wave amplitudes and phases. These data are available, too, but the calculations require special analyses. Please contact us if you are interested (jacobi@rz.uni-leipzig.de).
1983-2002 mean profiles of prevailing winds and the semidiurnal tide are found here as ascii table and as as gif files.