Mathematics – Logic
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3112501w&link_type=abstract
Geophysical Research Letters, Volume 31, Issue 12, CiteID L12501
Mathematics
Logic
9
Hydrology: Frozen Ground, Hydrology: Hydroclimatology, Hydrology: Snow And Ice (1827), Hydrology: Water/Energy Interactions, Meteorology And Atmospheric Dynamics: Land/Atmosphere Interactions
Scientific paper
This paper presents a two-directional Stefan's solution for computing the freeze and thaw of soil columns. Use of an inverted set of equations to drive the soil freeze-thaw from the bottom is a significant improvement to the original freeze-thaw model. Simulations using the algorithm compared well with the 0°C isotherm interpolated from observed data at Arctic, Subarctic and cool temperate sites with different frost conditions that range from permafrost to seasonal frost across a north-south gradient in North America. The incorporation of explicit freeze-thaw parameterization in hydrologic and land surface models would enable realistic simulation of soil temperature, soil moisture and runoff/infiltration and hence energy, water and greenhouse gas exchange processes in high latitudes.
Arain Altaf M.
Mollinga M.
Woo Ming-ko
Yi Sun
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