"Circulation patterns" refers to the way something moves or flows in a particular area or system. It can describe the movement of air currents, ocean currents, or even the flow of information or products in an organization. Full definition
• How are the mechanisms controlling sea ice extent and volume changing and how are they related to changes in atmospheric and oceanic circulation patterns in lower latitudes? (psc.apl.uw.edu)
On the left is an image of the global circulation pattern on a normal day. (sciencedaily.com)
Another possibility might be that pollutants could cause changes in wind circulation patterns on a weekly basis. (realclimate.org)