A Rhapsody in the Rain: Sound, Drop Size Distribution, and Rain Rate
Abstract
Have you ever heard a rhapsody played by raindrops on a rainy day? Rhapsody means a piece of music that has no formal structure and expresses a powerful feeling. The bursting sound of raindrops hitting the ground is like the sound produced by unruffled percussion instruments and each raindrop is like an instrument. In the other words, a raindrop of a specific size could make a sound of a unique range in the frequency domain if the rain falls on the same ground material. In this study, a frequency of each raindrop according to the ground material was quantitatively analyzed to find out the distribution of raindrops through sound information. A conceptual idea is originated from acoustic analysis on distinguishing the types and numbers of unruffled instruments that make up rhapsody through its unique frequency and intensity. As a preemptive attempt, we investigated sound characteristics of raindrops and evaluated the relationship between rain sound data and drop size distribution, followed by various rain rates and ground material conditions. Here, a PArticle SIze and VELocity (PARSIVEL) disdrometer was used to observe the drop size distribution and rain rate.
Acknowledgment This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. NRF-2022R1A4A3032838).- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2022
- Bibcode:
- 2022AGUFM.H15T1030J