"atmospheric pattern" is a correct and usable phrase in written English.
You can use it when referring to the specific air mass movement and circulation characteristics in a certain region. For example, "The atmospheric pattern over the Pacific Northwest is characterized by moist air masses coming off the ocean."
Another question that needs further study is what mechanisms drive atmospheric pattern or regime changes.
The atmospheric pattern was a characteristic circulation type known as the Pacific North American (PNA) mode.
That atmospheric pattern soon disappeared, with the two-jet setup resuming its dominance and feeding this week's twisters in the South.
Monsoon dynamics are linked with the El Niño and La Niña current anomalies and with the Southern Oscillation atmospheric pattern of the South Pacific Ocean.
In contrast, the aforementioned atmospheric pattern kept much of the Atlantic Seaboard unusually dry, and during the summer subnormal rainfall persisted across the Northeast and Middle Atlantic states.
The Western Mediterranean Oscillation (WeMO) was correlated to oxygen stable isotope composition, although this atmospheric pattern was not a control.
Paper: "21st Century Changes in U.S. Regional Heavy Precipitation Frequency Based on Resolved Atmospheric Patterns".
(Although sea ice has declined markedly along the western Antarctic Peninsula, it is increasing in some regions of Antarctica, most notably in the Ross Sea, because of changing atmospheric patterns).
The resulting disruption in the transfer of heat could cause changes in atmospheric patterns throughout the Atlantic and alter weather patterns around the world.
Their analysis revealed a significant increase in the occurrence of atmospheric patterns associated with certain precipitation and temperature extremes over the 67-year period.
For each scenario, the team flagged those modeled large-scale atmospheric patterns that they had determined to be associated with heavy storms.
