Real-time monitoring of snowmelt infiltration in steep permafrost-affected rock slopes using fluorescent dyes - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

Real-time monitoring of snowmelt infiltration in steep permafrost-affected rock slopes using fluorescent dyes

Matan Ben-Asher
  • Fonction : Auteur
Jean-Yves Josnin
Josué Bock
Emmanuel Malet
Antoine Chabas
  • Fonction : Auteur
  • PersonId : 1280396
Marine Quiers
  • Fonction : Auteur
  • PersonId : 1114252
Amaël Poulain
  • Fonction : Auteur
Yves Perette
  • Fonction : Auteur

Résumé

Little is known about the connectivity between surface water and subsurface fractures in steep permafrostaffected rock slopes. Here we present a novel high-elevation field experiment designed to monitor real-time infiltration in rock fractures at Aiguille du Midi (3842 m a.s.l), in the Mont-Blanc massif. An existing tunnel that was carved for access to visitors, allows the collection of water directly from fractures that cross the tunnel walls. We monitored the water flow rate, temperature, and electrical conductivity in two adjutant fractures. In addition we installed a fluorescence probe and inserted two different fluorescent dyes: amino-acid-G and sulphorhodamine-B, into snow patches at the surface, in two locations directly above the fractures (5-15 m) to track the water source. We sampled water from the monitored fractures and other locations in the tunnel.
Fichier principal
Vignette du fichier
EUCOP2023_poster_BenAsher_print.pdf (5.06 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04195991 , version 1 (05-09-2023)

Identifiants

  • HAL Id : hal-04195991 , version 1

Citer

Matan Ben-Asher, Florence Magnin, Jean-Yves Josnin, Josué Bock, Emmanuel Malet, et al.. Real-time monitoring of snowmelt infiltration in steep permafrost-affected rock slopes using fluorescent dyes. 6th European Conference on Permafrost (EUCOP6), Jun 2023, Puigcerda, France. ⟨hal-04195991⟩
23 Consultations
3 Téléchargements

Partager

Gmail Facebook X LinkedIn More