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From atmospheric winds to fracture ventilation: Cause and effect

Creator:

Nachshon, Uri, Dragila, Maria, and Weisbrod, Noam

Abstract:

Vadose zone fractures and soil cracks exposed to the atmosphere have an impact on gas exchange processes at the Earth-atmosphere interface. In this study we explored and quantified the role of ground-surface winds on fracture ventilation. While the governing physical mechanisms that cause ventilation are relatively well understood, this is...

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: Cause and effect From atmospheric winds to fracture ventilation: Cause and effect Uri Nachshon,1
Infrared thermography of evaporative fluxes and dynamics of salt deposition on heterogeneous porous surfaces

Creator:

Nachshon, Uri, Shahraeeni, Ebrahim, Or, Dani, Dragila, Maria, and Weisbrod, Noam

Abstract:

Evaporation of saline solutions from porous media, common in arid areas, involves complex interactions between mass transport, energy exchange and phase transitions. We quantified evaporation of saline solutions from heterogeneous sand columns under constant hydraulic boundary conditions to focus on effects of salt precipitation on evaporation dynamics. Mass loss measurements...

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Article

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evaporative fluxes and dynamics of salt deposition on heterogeneous porous surfaces Uri Nachshon,1 Ebrahim