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

Авторы: Kamata Y., Sokratov S.A., Sato A.
Сборник: 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.)
Серия: Lecture Notes in Physics
Том: 533
Год издания: 1999
Место издания: Springer–Verlag Berlin, Heidelberg, New York
Первая страница: 395
Последняя страница: 402
DOI: 10.1007/BFb0104197
Аннотация: Under extremely low temperatures (ranging from −65°C to −15°C), 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.
Добавил в систему: Сократов Сергей Альфредович

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