Standards

Oral

392639 - Quantifying Summertime Precipitation Enhancement by Cloud Seeding over the United States High Plains

Tuesday, June 5
8:30 AM - 10:00 AM
Location: Skyway Room

Several approaches have been proposed to use cloud seeding techniques to enhance summertime precipitation over the semi-arid regions of the High Plains region of the United States. It has been difficult to test these approaches because summertime precipitation is quite variable, creating a very noisy record of precipitation amounts at any one location or over an cloud-seeding target region. It is difficult to see the signal of a modest seeding effect over and above the natural variability of precipitation. We examine surface precipitation observations from three networks of observing sites in North Dakota and show that over most of the state decades of observations will be required to discern a precipitation increase due to seeding on the order of 10%.

Andrew Detwiler, Ph.D.

Emeritus Professor of Physics
SDSMT

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392639 - Quantifying Summertime Precipitation Enhancement by Cloud Seeding over the United States High Plains



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