REPRESENTATIVE HEIGHT-TIME CROSS-SECTIONS OF THE UPPER-ATMOSPHERE WIND-FIELD OVER CENTRAL-EUROPE 1990-1996

A joint analysis of LF and MF wind profiler data of Central Europe for the height range from 75 to 105 km for 7 years, obtained from daily m easurements and overlapping in height and time, makes it possible to r epresent reliable height-time cross-sections for some wind field param eters. Interesting details are the great summer zonal prevailing wind gradient which reaches, on average, 3 m s(-1) km(-1) and a relatively height-invariable vertical wave length (about 50 km) of the semidiurna l tidal wind component in winter, seen clearly in the vertical phase g radient. (C) 1997 Published by Elsevier Science Ltd. All rights reserv ed.