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STUDY OF WARMING INFLUENCE

Институт химии нефти СО РАН Югорский НИИ Информационных технологий Institute of Petroleum Chemistry SB RAS Ugra research institute of information technologies. STUDY OF WARMING INFLUENCE

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STUDY OF WARMING INFLUENCE

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  1. Институт химии нефти СО РАН Югорский НИИ Информационных технологий Institute of Petroleum Chemistry SB RASUgra research institute of informationtechnologies STUDY OF WARMING INFLUENCE ON THERMOKARST STATE IN CONTINUOUS PERMAFROST ZONE OF WESTERN SIBERIA ON BASE OF REMOTE SENSING DATA Yu.M. Polishchuk1,2, V.P. Dneprovskaya1, N.A.Bryksina2, 31Institute of Petroleum Chemistry, SB RAS,3, Akademichesky Ave., Tomsk, 634021, Russia2Ugra State University16, Chekhova street, Khanty-Mansiysk, 628012, Russia3Ugra research institute of information technologies151, Mira street, Khanty-Mansiysk, 628011, Russia

  2. DATA and OBJECTS OF GEOCRYOLOGICAL STUDIES

  3. Climatic data Long-term time numbers of mid-annual values of air temperature, quantity of atmospheric precipitation and other climatic parameters, received at 156 meteorological stations in West-Siberian territory for the period 1955 - 2006 years have been analyzed. Remote sensing dataCollections of space images of 1973-2006 years Landsat - 1 (scаnnеr MSS), 10.08.1973 Landsat - 5 (scаnnеrMSS), 27.07.1984 Landsat - 5 (scаnnеr MSS), 26.06.1988 Landsat - 4 (scаnnеrТM), 01.08.1988 Landsat - 5 (scаnnеrТM), 20.09.1989 Resurs - F2 (scanner МК 4), 14.06.1993 Landsat - 7 (scаnnеrETM), 07.08.1999 Landsat - 7 (scаnnеrETM), 03.08.2001 Landsat - 7 (scаnnеr ETM), 03.07.2002 Spot - 5 (scаnnеr HRV), 20.07.2005 ERS-2 – 2005, June – 2006, September ENVISAT – 2004, May - September

  4. 1 2 Objects of geocryological studies The most effective geoindicators of cryogenic changes of permafrost territories under global warming using remote sensing are thermokarst lakes. Below is a fragment of space image Landsat-7 (07.08.1999г.)with indicated objects of geocryological studies: thermokarst lakes - 1; dried lakes (khasyreys) – 2.

  5. CHARACTERISTICS of PILOT TERRITORIES and OBJECTS OF GEOCRYOLOGICAL STUDIES

  6. Map of permafrost zoning

  7. Map of geobotanical zoning

  8. Some results of climatic changes analysis

  9. Climatic changes in southern part of Western Siberia (territory of Outside the permafrost) Mid-annual values of air temperature Mid-annual air temperature in the second period (1980-1992 years) in comparison with the period of 1955-1970 years has increased approximately 1,0 0С Quantity of atmospheric precipitation has increased approximately 0.2 mm Quantity of atmospheric precipitation - Mean value - confidence limit for 90 % confidence probability

  10. - Mean value - confidence limit for 90 % confidence probability Temperature changein territory of Continuous and Discontinuous permafrost section (Yamal-Nenets region) Mid-annual air temperature in the second period (1980-2006 years) in comparison with the period of 1973-1979 years has increased 0,96 0С

  11. Methodical questions of analysis of geocryologic changes

  12. Space image Landsat-1 (10.08.1973) with indicated thermokarst lakes

  13. Fragment of space image Spot-5 ( 20.07.2005)

  14. Comparison of space images Landsat-1 (10.08.1973) and Spot-5 ( 20.07.2005)

  15. а b c d Consequent stages of decrease of lake 7 area Thermokarst lake 7 areas (red) changes

  16. c а b d Consequent stages of decrease of lake 9 area Changes of area of thermokarst lake 9 (red)

  17. Consequent stages of changesof lake 52 area in PT-5 b a e c d Decrease of area (red) of thermokarst lake 52 in time Decrease of area (red) of thermokarst lake 52 in time

  18. Foto by S.N. Kirpotin

  19. Intraseasonalchanges of thermokarst lakes areas using radar images ERS-2 and ENVISAT PT-1 2004 -2005 г. Date Date Date

  20. Intraseasonalchanges of thermokarst lakes areas using radar images ERS-2 PT-5 2005 -2006 г. Date Date

  21. Analysis of lakes area changes in PT-1 Total area of lakes : 1973 - 2155,1 ha, 2005 - 1902,2 ha. Decrease of lake area Increase of lake area No changes

  22. Total analysis of changes of lake’s areas in PT-5 Total area of lakes : 1984 - 3165.7ha, 2001 - 2892.4ha. Decrease of lake area Increase of lake area No changes

  23. Temporal changes of thermokarst lakes in PT-5

  24. Results of analysis of geocryologic changes

  25. Samples of lakes areas changes in continuous permafrost zone Arctic tundra, PT-10, PT-11 PT-11 PT-10 Total area of lakes : 1984 – 3463,5ha, 2006 – 3761,0ha. Total area of lakes : 1984 – 3421,2 ha, 2006 – 3765,3 ha.

  26. Changes of summarized area of thermokarst lakes in continuous permafrost zone k- Normalized total area of lakes increase

  27. Change of summarized area of thermokarst lakes in discontinuous permafrost zone k- Normalized total area of lakes decrease

  28. Normalized value of thermokarst lakes areas depending on degree of latitude Degree of latitude k

  29. Map of permafrost zoning

  30. Thank you!

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