Результаты исследований: Материалы конференций › тезисы › Рецензирование
Water tracks in the lower Lena River basin. / Tarbeeva, A.; LEBEDEVA, L.; EFREMOV , V.; Shamov, V.; Makarieva, O.
2020. 04007 Реферат от 4th Vinogradov Conference on Hydrology: from Learning to Worldview in Memory of Outstanding Russian Hydrologist Yury Vinogradov, VC 2020, Saint-Petersburg, Российская Федерация.Результаты исследований: Материалы конференций › тезисы › Рецензирование
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TY - CONF
T1 - Water tracks in the lower Lena River basin.
AU - Tarbeeva, A.
AU - LEBEDEVA, L.
AU - EFREMOV , V.
AU - Shamov, V.
AU - Makarieva, O.
PY - 2020/4/17
Y1 - 2020/4/17
N2 - In the permafrost regions, where water filtration zone is limited by the shallow active layer, the surface flow forms a network of hollows, called «water tracks», oriented along the slope gradient. Water tracks are clearly distinguished on satellite images, but poorly defined in the field. The pattern of the water tracks network depends on geomorphological position, permafrost and geological conditions and dominant cryogenic processes. Surface flow could occur in the water tracks during the snowmelt and heavy rains, when the soil is entirely frozen or fully saturated by water. In dry periods, the water tracks form retention zones due to low filtration rates and significant capacity of thawed soil beneath the troughs. Our study of water tracks in the north-western Yakutia showed the changes of their morphology from upstream towards downstream. The water levels in the water tracks have a pronounced diurnal course in reverse phase to the water temperature variation. They are related to diurnal ground thawing dyn
AB - In the permafrost regions, where water filtration zone is limited by the shallow active layer, the surface flow forms a network of hollows, called «water tracks», oriented along the slope gradient. Water tracks are clearly distinguished on satellite images, but poorly defined in the field. The pattern of the water tracks network depends on geomorphological position, permafrost and geological conditions and dominant cryogenic processes. Surface flow could occur in the water tracks during the snowmelt and heavy rains, when the soil is entirely frozen or fully saturated by water. In dry periods, the water tracks form retention zones due to low filtration rates and significant capacity of thawed soil beneath the troughs. Our study of water tracks in the north-western Yakutia showed the changes of their morphology from upstream towards downstream. The water levels in the water tracks have a pronounced diurnal course in reverse phase to the water temperature variation. They are related to diurnal ground thawing dyn
U2 - 10.1051/e3sconf/202016304007
DO - 10.1051/e3sconf/202016304007
M3 - Abstract
SP - 04007
T2 - 4th Vinogradov Conference on Hydrology: from Learning to Worldview in Memory of Outstanding Russian Hydrologist Yury Vinogradov, VC 2020
Y2 - 20 March 2020 through 27 March 2020
ER -
ID: 78475708