WATER MASS AND THAW DEPTH RELATIONSHIP WITHIN CENTRAL SIBERIA

Описание

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

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Издание

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

Персоны

  • Im Sergei (RAS, VN Sukachev Inst Forest SB, Krasnoyarsk, Russia; Siberian Fed Univ; MF Reshetnev Siberian State Aerosp Univ)

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