Development of Physical Evaluation Techniques for the North Dakota Cloud Modification Project

J. R. Miller, S. lonescu-Niscov, D. L. Priegnitz, A. A. Doneaud, J. H. Hirsch, P. L. Smith


This paper is a summary progress report on the development of physical evaluation techniques aimed at assessing the effects of ice phase cloud seeding on summertime convective storms in North Dakota. The use of digitized 5-cm radar data, rawinsonde data, and one-dimensional cloud model results are discussed in this techniques development effort. These preliminary results suggest favorable tendencies toward successful rainfall enhancement. Various biases are presented and suggestions for further research are made.

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