Abstract
The multipeak behavior of raindrop size distributions has been studied. Peaks have been found for distinct drop diameters: 0.7, 1.0, 1.9, and possibly 3.2 mm. The probability is about 65% that at least one of these peaks exists in an observed size distribution. Such peaks may represent important clues for investigations into precipitation growth and binary interaction mechanisms of raindrops. The observational finding of the peaks in raindrop spectra is consistent with several theoretical models.
