There is no need to stress here the importance of current strato­spheric research motivated by possible man-made disturbances of the natural chemical equilibrium state of ozone in the stratosphere. The subject is discussed not only in the technical literature but in newspapers, magazines and television ...

Persistent wind jet structures along zonal and meridional fields, believed to be caused by stationary gravity waves, were detected in February 1999 in mesospherestratosphere-troposphere (MST) radar wind measurements of the troposphere and lower stratosphere over Jicamarca, Peru. Over a continuous seven ...

The potential of the Arecibo 430-MHz radar for the study of stratospheric dynamics and turbulence has been recently established. In the past the instrumented resolution of the system has been larger than 300-600 m. The present paper describes instrumental modifications which have enabled us to obtain ...

The high-power VHF radar technique is a powerful tool to lnvestigate winds and turbulence in the middle atmosphere. However, an entire wind or power profile from the upper troposphere to the lower thermosphere. (10-100 km) has not yet been obtained.- Especially, it is very difficult to observe the ...

A cooperative synchronous observation of winds in the tropical lower stratosphere and mesosphere was carried out using VHF radars at Jicamarca (11.95°S, 76.87°W) and at Arecibo (18.35°N, 66.75°W) on 19-21 or 23 November 1981. The comparison between observations about symmetrical north and south of the ...