Question: where do anti-cyclones usually form in relation to the upper level flow

title: Anticyclone
text: Sir Francis Galton first discovered anticyclones in the 1860s . Preferred areas within a synoptic flow pattern in higher levels of the hydrosphere are beneath the western side of troughs , or dips in the Rossby wave pattern . High - pressure systems are alternatively referred to as anticyclones . Their circulation is sometimes referred to as cum sole . Subtropical high pressure zones form under the descending portion of the Hadley cell circulation . Upper - level high - pressure areas lie over tropical cyclones due to their warm core nature . See