Rainfall, one of the most important resources for all life and for the environment, is also the most difficult meteorological parameter to measure, mainly due to its nonstationnarity in space and time. Several powerful instruments exist today to measure rainfall, but they often suffer from some strong disadvantages, ranging from high costs and variable space and time coverage to low accuracy. In this study, we explain how a measure the sound of the falling rain could provide a reliable metric of the rainfall. We demonstrate its reliability in a specific case study, for a long rainy tropical event of the Indian monsoon and in noisy conditions. The final determination coefficient computed in cross validation reaches R2 = 0.9, without any treatment of the signals other than a simple smoothing window. If confirmed through more intensive research, our findings could help in the design of a highly useful acoustic rain gauge, of great value to developing countries that experience intense but poorly studied rainy seasons.
The Pluviophone: Measuring Rainfall by Its Sound
Contributed by the Technical Committee on Vibration and Sound of ASME for publication in the JOURNAL OF VIBRATION AND ACOUSTICS. Manuscript received March 19, 2014; final manuscript received January 13, 2015; published online March 13, 2015. Assoc. Editor: Lonny Thompson.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Gaucherel, C., and Grimaldi, V. (June 1, 2015). "The Pluviophone: Measuring Rainfall by Its Sound." ASME. J. Vib. Acoust. June 2015; 137(3): 034504. https://doi.org/10.1115/1.4029645
Download citation file:
- Ris (Zotero)
- Reference Manager