A STUDY OF VERTICAL MOTION IN RELATION TO DEEP STABLE STRATIFIED LAYERS IN WINTER IN CANTON DERIVED BY MEANS OF THE ASCENSIONAL RATE OF RASONDE SYSTEM

In the winter of 1945-46,there existed frequently a deep stable layer (|∂T/∂z|<0.3℃/100M) in the lower troposphere.The upper houndary of this stable layer was at a height of about 3-4km and the lower boundary might reach the ground It was very of tenthat there might be another deep stable layer in the middle or unoer troposphere.The original data of rawind and rasonde svstems showed that as the balloons passing through these layers the rate of ascent changed noticeably.