Vol. XXV, No. 2 (March–April 2021)

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CONTENTS

GEOLOGICAL CRYOGENIC PROCESSES AND FORMATIONS

• Sizov O.S., Yurtaev A.A., Soromotin A.V., Koptseva E.M., Volvakh A.O., Abakumov E.V., Berdnikov N.M., Prikhodko N.V., Guryev D.S. Reconstruction of the formation history of the peat plateau in the lower reaches of the Nadym River

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SURFACE AND GROUND WATERS IN TERRESTRIAL PERMAFROST REGION

• Makarov V.N., Spektor V.B. Thermal spring at the Pole of Cold (Eastern Yakutia)

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METHODS OF CRYOSPHERIC RESEARCH

• Gorelik J.B., Khabitov A.K. Affectivity of surface cooling of frozen ground in connection with mechanism of temperature shift formation

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SNOW COVER AND GLACIERS

• Fedorov V.M., Grebennikov P.B. Implications of changes in insolation characteristics for long-term sea ice extent dynamics in the Northern Hemisphere

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DISCUSSION

• Vasil’chuk Yu.K., Vasil’chuk A.C. Air January paleotemperature reconstruction 48–15 calibrated ka BP using oxygen isotope ratios from Zelyony Mys Yedoma

• Galanin A.A. About the incorrectness of Yu.K. Vasil’chuk’s method for the reconstruction of paleotemperatures using isotope composition of wedge ice. Review of the article by Yu.K. Vasil’chuk, A.C. Vasil’chuk “Air January paleotemperature reconstruction 48–15 calibrated ka BP using oxygen isotope ratios from Zelyony Mys Yedoma”

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CHRONICLE

• Melnikov V.P., Sadurtdinov M.R., Nesterov A.N., Fedorov R.Yu., Ustinova E.V. To the anniversary of the Earth Cryosphere Institute, Tyumen Scientific Centre SB RAS