These are consequences of the evaporation rate and the atmospheric circulation.
From 1950, Flohn helped develop the theory of atmospheric circulation.
On September 29, the disturbance developed a closed low-level atmospheric circulation.
On May 20, satellite imagery showed evidence of a weak atmospheric circulation.
Snowpacks have a great impact on atmospheric circulation and are an important source of water.
Changing atmospheric circulation (blue) drive the runoff east towards Canada.
Initially, the depression developed slowly and there was even uncertainty on whether it had an atmospheric circulation or not.
The storm becomes an integral part of the atmospheric circulation, like an eddy in a river.
It is this property that causes the general atmospheric circulation.
Some scientists say abrupt shifts in atmospheric circulation could be responsible.