Evaluation of the FlowCapt Acoustic Sensor for the Aeolian Transport of Snow - Archive ouverte HAL Access content directly
Journal Articles Journal of Atmospheric and Oceanic Technology Year : 2015

Evaluation of the FlowCapt Acoustic Sensor for the Aeolian Transport of Snow

(1) , (2) , (3) , (4) , (4)
1
2
3
4

Abstract

FlowCapt acoustic sensors, designed for measuring the aeolian transport of snow fluxes, are compared to the snow particle counter S7optical sensor, considered herein as the reference. They were compared in the French Alps at the Lac Blanc Pass, where a bench test for the aeolian transport of snow was set up. The two existing generations of FlowCapt are compared. Both seem to be good detectors for the aeolian transport of snow, especially for transport events with a flux above 1 g m 22 s 21. The second-generation FlowCapt is also compared in terms of quantification. The aeolian snow mass fluxes and snow quantity transported recorded by the second-generation FlowCapt are close to the integrative snow particle counter S7 fluxes for an event without precipitation , but they are underestimated when an event with precipitation is considered. When the winter season is considered, for integrative snow particle counter S7 fluxes above 20 g m 22 s 21 , the second-generation FlowCapt fluxes are underestimated, regardless of precipitation. In conclusion, both generations of FlowCapt can be used as a drifting snow detector and the second generation can record an underestimation of the quantity of snow transported at one location: over the winter season, the quantity of snow transported recorded by the SPC is between 4 and 6 times greater than the quantity recorded by the second-generation FlowCapt.
Fichier principal
Vignette du fichier
JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY- Evaluation of the FlowCapt Acoustic Sensor for the Aeolian Transport of Snow.pdf (2.07 Mo) Télécharger le fichier
Origin : Publication funded by an institution
Loading...

Dates and versions

insu-01235633 , version 1 (30-11-2015)

Identifiers

Cite

Alexandre Trouvilliez, F. Naaim-Bouvet, Hervé Bellot, Christophe Genthon, Hubert Gallée. Evaluation of the FlowCapt Acoustic Sensor for the Aeolian Transport of Snow. Journal of Atmospheric and Oceanic Technology, 2015, 32 (9), pp.1630-1641. ⟨10.1175/JTECH-D-14-00104.1⟩. ⟨insu-01235633⟩
161 View
233 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More