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Winter regime of temperature and snow accumulation as a factor of ground freezing depth variationsстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 16 сентября 2020 г.
- Автор: Frolov D.M.
- Журнал: E3S Web of Conferences
- Том: 163
- Год издания: 2020
- Издательство: EDP Sciences
- Местоположение издательства: France
- Номер статьи: 01005
- DOI: 10.1051/e3sconf/202016301005
- Аннотация: The observations of ground freezing depth in the conditions of bare soil and under natural cover have been carried out at the sites of meteorological observatory of Lomonosov Moscow State University since the observatory’s foundation in 1954. For estimation of role of snow cover in variations of ground freezing depth the calculations of ground freezing depth were conducted using the meteorological data on air temperature and snow thickness for winter seasons of 2011/12-2018/19. The calculating scheme for ground freezing is constructed on the basis of three layer media heat conductivity problem (snow cover, frozen and thawed ground) with phase transition on the boundary of frozen and unfrozen ground. Heat balance equation includes phase transition energy, inflow of heat from unfrozen ground and outflow to frozen ground, snow cover and atmosphere. The heat flux is calculated on the basis of Fourier law as a product of heat conductivity and temperature gradient. It is supposed, that the temperature changes in each media linearly. The comparison of calculated and observed values of ground freezing indicates good correspondence.
- Добавил в систему: Фролов Денис Максимович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | e3sconf_vc2020_01005.pdf | e3sconf_vc2020_01005.pdf | 304,6 КБ | 17 апреля 2020 [Frolov_Denis] |