Temperature and temperature gradient dependence of snow recrystallization in depth hoar snowстатья

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1. Полный текст Kamata_et_al_1999.pdf 547,1 КБ 4 апреля 2013 [sokratov]

[1] Kamata Y., Sokratov S. A., Sato A. Temperature and temperature gradient dependence of snow recrystallization in depth hoar snow // Advances in Cold Region Thermal Engineering and Sciences. Technological, Environmental, and Climatological Impact (Proceedings of the 6th International Symposium, Darmstadt, Germany, August 1999) / Hutter K., Wang Y., Beer H. (Eds.). — Vol. 533 of Lecture Notes in Physics. — Springer–Verlag Berlin, Heidelberg, New York, 1999. — P. 395–402. Under extremely low temperatures (ranging from −65oC to −15oC), an experiment on temperature gradient metamorphism with 500 K m(−1) was carried out for three days. Heat fluxes were produced in snow in either upward or downward directions. The effects of temperature, temperature gradient and its direction on crystal growth were investigated. The experiment showed that the growth rate was larger in layers where the average for the layer temperature was higher, even if the temperature gradient was small. The relationship of the calculated water-vapor flux and crystal growth to temperature was examined, and good correlation was found. It was concluded that crystal growth primarily depends on temperature, and secondarily on temperature gradient. [ DOI ]

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