Urban-rural circulation

From Glossary of Meteorology



urban–rural circulation

(Also called city–country wind breeze system.) A circulation system driven by urban–rural differences of temperature (i.e., the urban heat island); a toroidal circulation system of country breezes at low level converging on the city center, resulting in uplift with divergence and return flows aloft.

The country breezes arrive in pulses and the strength of the circulation depends on the static stability as well as horizontal temperature differences.