How to pronounce “undulation” in English

waves are set up set off by mountains but there's a very kind of turbulentconfused sort of nature of it it's not like gentle undulation so you see in a calm sky sothese um these chaotic confused waves in the

And then again, it slowed down in the 1960s to 1990s to only a quarter of it.So again, you have this undulation and growth.It's best seen in some studies in Denmark where they took children in the 1930s.

um distinctive uh beautiful appearance this breaking wave appearance and it's this is all to do with shearing windsabove and below the cloud lay and one they call they set up an undulation likea wave like form within the cloud layer and if the winds are right the top of