Comparison of the Z-R Relationships for Seeded and Nonseeded Florida Cumuli

John B. Cunning Jr. National Hurricane and Experimental Meteorology Laboratory, NOAA, Coral Gables, Fla. 33124

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Abstract

Raindrop size distributions were measured at cloud base during the 1971–73 Florida Area Cumulus Experiment to study the effect of cloud seeding on the Z-R relationship. The Z-R points derived from the “seeded” distributions appear within the 95% confidence limits for the Z-R relationship and well within the natural variability of Z-R points on a day-to-day basis.

Abstract

Raindrop size distributions were measured at cloud base during the 1971–73 Florida Area Cumulus Experiment to study the effect of cloud seeding on the Z-R relationship. The Z-R points derived from the “seeded” distributions appear within the 95% confidence limits for the Z-R relationship and well within the natural variability of Z-R points on a day-to-day basis.

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