Magnetic resonance sounding dataset of a hard-rock headwater catchment for assessing the vertical distribution of water contents in the subsurface

N. Lesparre (1) , Jean-François Girard (2) , Benjamin Jeannot (1) , Sylvain Weill (1) , Marc Dumont (3) , Marie Boucher (4) , Daniel Viville (1) , Marie-Claire Pierret (1) , Anatoly Legchenko (4) , Frederick Delay (1)

1 LHyGeS - Laboratoire d'Hydrologie et de Géochimie de Strasbourg
2 IPGS - Institut de physique du globe de Strasbourg
3 METIS - Milieux Environnementaux, Transferts et Interactions dans les hydrosystèmes et les Sols
4 IGE - Institut des Géosciences de l’Environnement

Magnetic Resonance Sounding (MRS) measurements are acquired at 16 stations in the Strengbach headwater catchment (Vosges Mountains – France). These data, rendering the vertical distribution of water contents in the subsurface, are used to show their potential in conditioning a hydrological model of the catchment, as described in the article “Magnetic resonance sounding measurements as posterior information to condition hydrological model parameters: Application to a hard-rock headwater catchment” – Journal of Hydrology (2020). Acquisition protocols follow a free induction decay scheme. Data are filtered by applying a band-pass filter at the Larmor frequency. A filter removing the 50 Hz noise is also applied with the exception of data at a Larmor frequency close to the 50 Hz harmonic. The signal envelopes are then fitted by a decaying exponential function over time to estimate the median characteristic relaxation time of each MRS sounding.

Domaines: Interfaces continentales, environnement; Géophysique [physics.geo-ph]

N. Lesparre, Jean-François Girard, Benjamin Jeannot, Sylvain Weill, Marc Dumont, et al.. Magnetic resonance sounding dataset of a hard-rock headwater catchment for assessing the vertical distribution of water contents in the subsurface. Data in Brief, 2020, 31, ⟨10.1016/j.dib.2020.105708⟩. ⟨hal-03024281⟩