Dual-probe heat pulse method for snow density and thermal properties measurement

Details Dual-probe heat pulse method for snow density and thermal properties measurement Dual-probe heat pulse method for snow density and thermal properties measurement

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3516404l&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 16, CiteID L16404

Physics

1

Hydrology: Snow And Ice (0736, 0738, 0776, 1827), Hydrology: Instruments And Techniques: Monitoring, Hydrology: Water Budgets, Hydrology: Watershed

Scientific paper

Measuring the density (ρ), thermal conductivity (k) and thermal diffusivity (α) of snow is important for modeling the energy and water balance of the earth's surface. The objective of this letter is to determine if the dual-probe heat pulse (DPHP) method can be used to measure snow density as well as thermal properties k and α. DPHP experiments with 60-s heat pulse duration and variable strength of q' < 15 W m-1 were carried out on ice and various kinds of snow to avoid melting. There was a linear relationship between the DPHP measured snow density and that of gravimetrically measured density. With calibration, the DPHP method may be accurate for determining snow density.

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