Cities can modify rainfall - a new concept


  • Stanley Changnon Jr.


Weather Modification Research, Impacts of Human Activity


Several climatic studies during the past 100 years have shown  that cities develop their own special internal climate, being  warmer and less windy than rural areas. A few key climatic studies of the past 10 years found that cities may also produce  effects on clouds and precipitation that extend several miles out  from the city. Unfortunately, these challenging discoveries could not define  adequately the true magnitudes, in time and space, of these  precipitation anomalies because the desired records in and around  most American cities are too sparse or just not available, lhey also  could not specify how these complex atmospheric processes were  being altered, but the possibility brought a new dimension to  weather modification.....




Technical Notes and Correspondence