THE INFLUENCE OF CHANGING CLIMATE AND GEOCRYOLOGICAL CONDITIONS ON THE REGIME OF REGIONAL DISCHARGE AND ICING IN THE UPPER PART OF LENA RIVER’S BASIN

Using the balance method authors showed for the case of 1990 that the reaction of the river discharge on the climate change is different in the regions with continuous and sporadic permafrost extent. In mountain with continuous permafrost extent the climate warming has no strong influence on the riv...

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Bibliographic Details
Published in:GEOGRAPHY, ENVIRONMENT, SUSTAINABILITY
Main Authors: Dmitry Sergeev, Nikolai Romanovskiy, Gennadiy Tipenko, Sergey Buldovich, Anatoly Gavrilov, Kenji Yoshikawa, Vladimir Romanovsky
Format: Article in Journal/Newspaper
Language:English
Published: Lomonosov Moscow State University 2012
Subjects:
permafrost
underground water
river run-off
climate change
numerical simulation
geo
envir
Ice
Online Access:https://doi.org/10.24057/2071-9388-2012-5-1-41-51
https://doaj.org/article/f557048dea8e4f6abb1d74f4220b2895
Description
Summary:Using the balance method authors showed for the case of 1990 that the reaction of the river discharge on the climate change is different in the regions with continuous and sporadic permafrost extent. In mountain with continuous permafrost extent the climate warming has no strong influence on the river discharge but affects on the ice-mounds’ volume. In case of sporadic permafrost extent the decreasing of permafrost area to 30% leads to decreasing of snow-melting overflow up to 38%. Also the period of the flood became longer because the underground storage increasing that takes away the precipitation, snow-melting and condensation water from surface discharge.

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