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Statistical analysis of the climatic factors influence on the active layer depth in Russian cryolithozoneтезисы доклада
- Авторы: Boris Petrov, Streletskaya I.
- Сборник: International Conference “Solving the puzzles from Cryosphere” : Program, Abstracts : Pushchino, Russia, April 15–18, 2019
- Тезисы
- Год издания: 2019
- Место издания: Москва
- Первая страница: 58
- Последняя страница: 59
- Аннотация: Active layer is a very sensitive natural object to climate change. The response of permafrost to air temperature increasing followed by active layer thickening, is usually characterized by the correlation of active layer thickness (ALT) and the sum of positive daily temperatures of warm season (DDT). Besides climate, geological and landscape characteristics affect ALT values. We have estimated the significance of DDT effect on seasonal thawing and examined the spatial variability of correlations between them. For the analysis, Circumpolar Active Layer Monitoring program’s ALT data from George Washington University website (http://www.gwu.edu/~calm/) were used. 21 sites on the territory of Russian cryolithozone with 9 years and more observation series were taken. Daily air temperatures were taken from neighbouring weather stations (http://www.meteo.ru/data and http://www.rp5.ru). The statistical coefficient R2 — the coefficient of determination (the fraction of the variance explained by the statistical model) as an indicator characterizing the relation between ALT and DDT was adopted. Data processing and analysis performed in the Statistica software.
- Добавил в систему: Стрелецкая Ирина Дмитриевна