Abstract Gravimetric and dielectric permittivity measurement systems (DMS) are applied to measure snow density, but few studies have addressed differences between the two under complex snowpack conditions. A field experiment was conducted density using in stratigraphical layers of different densities, liquid water content (LWC), hardness, shear strength, performance analyzed compared. The resul...

In this study, a fast, facile and high accuracy method for concentration sulfate determination is presented. The based on precipitation of ions with barium ions. amount quantified by measurement the density ion solutions before mixing, supernatant after mixing. A calibration curve between 2.5 5.5 M in vanadium electrolyte was performed, obtaining precision better than 0.7%, agreement propagatio...