Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций
Конференция: International Multidisciplinary Scientific Geoconference (SGEM 2016); Albena, BULGARIA; Albena, BULGARIA
Год издания: 2016
Ключевые слова: Central Siberia, GRACE, thaw depth, cryolithozone, PERMAFROST
Аннотация: The permafrost region represents about 25% of the northern hemisphere (23x10(6) km(2)) and covers about 63% of the area of the Russian Federation (10x10(6) km(2)). Arctic and sub-arctic territories are particularly sensitive to temperature variations. Permafrost ground temperature has increased by 0.3-2.0 degrees C in northern RussПоказать полностьюia during the last four decades. This will result in permafrost thawing and changes in water balance. Until 2050, the thaw depth in the northern part of Siberia could increase by more than 50%. The remote sensing technique is useful in the studies of permafrost area. Remotely sensed gravity measurements from the GRACE (Gravity Recovery and Climate Experiment) mission allowed identifying of significant decrease of water mass in ice regions. The aim of this investigation was to reveal relationships between active layer changes and water mass anomalies extracted from GRACE data in the cryolithozone of Central Siberia. Six test sites with available active layer data were investigated. Correlation analysis was carried out to determine relationships of the thaw depth with equivalent water thickness anomalies (EWTA). June EWTA significantly correlates with the thaw depth in July on the Samoilov Island (r = 0.82, p
Журнал: WATER, RESOURCES, FOREST, MARINE AND OCEAN ECOSYSTEMS CONFERENCE PROCEEDINGS, VOL I
Номера страниц: 835-842
ISSN журнала: 13142704
Место издания: SOFIA
Издатель: STEF92 TECHNOLOGY LTD