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Gennadi Milinevsky National Antarctic Scientific Center of Ukraine, Kyiv National Taras Shevchenko University of Kyiv, Ukraine Ukraine.

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Presentation on theme: "Gennadi Milinevsky National Antarctic Scientific Center of Ukraine, Kyiv National Taras Shevchenko University of Kyiv, Ukraine Ukraine."— Presentation transcript:

1 Gennadi Milinevsky National Antarctic Scientific Center of Ukraine, Kyiv National Taras Shevchenko University of Kyiv, Ukraine Ukraine Antarctic research at Vernadsky station: results and prospects This work was partly supported by grant INTAS-2001- 0571

2 Where and what research Ukraine provides in Antarctica? Task 1. Climate change at Antarctic Peninsula Task 2. Antarctic ozone hole Task 3. Sun-Earth energy transfer, space weather Other research (GPS, GIS, Biology, Medicine) Priorities of research Structure:

3 Task 1: Climate change at Antarctic Peninsula

4 Annual mean temperature in 1947-2000 raised up to 2.5  С Warming in Antarctic Peninsula region Faraday/Vernadsky temperature, 1947-2001

5 - temperature - pressure - wind speed and direction - precipitation - humidity - snow level Meteorology and climate Modular Automatic Meteo Station – MAWS:

6 Sea water temperature anomaly +4.2  C

7 Antarctic Peninsula climate changes – impact on ecosystem Met Records Minimum temperature - 43.3  C 1958 Maximum temperature +11.8  C 1985 Maximum gust 78 knots 1991 Deschampcia Antarctica

8 UV-A and UV-B measurements

9 The tide gauge for sea level measurements – climate warming

10 Sea water and salinity measurements at Barchans Islands hydrology site

11 Galindez Island aerial photograph, December 1956 (BAS, R.Thomas, 1963 ) Ice caps dynamics in Antarctic Peninsula climate change conditions

12 Galindez ice cap boundaries: Dec 1956 and Jan 2004 Since 1956 the Galindez ice cap area has decreased significantly 1956 2004

13 West part of Galindez ice cap changes 2002 2003 2004 2005 23000 м 3 28000 м 3 17000 м 3

14 Argentina Islands ice caps: prognosis for the future If the temperature trend left constant that the ice cap could be discharging within century This process could be increased due to unique water temperature anomaly observed last years (up to + 4°C)

15 Task 2: Antarctic Ozone Hole

16 Ozone measurements 2002-2003 season

17 1979 1988 2003 Longitude asymmetry in 1979-2003 is rising Planetary wave in ozone layer

18 Displacement to East from  55°W to  0° Consequence: redistribution of UV radiation at sea level This changes may influence on regional climate and ecosystem During 30 years the asymmetry in ozone max and min positions enhanced

19 Task 3: Sun-Earth and troposphere-ionosphere energy transfer, space weather processes of energy distribution from the Earth surface to ionosphere height

20 Need to understand how solar energy affect the atmosphere and climate Solar effects are focused in polar regions

21 Ionosonde ISP-42 - radar for impulse ionosphere soundings Height: 0-800 km Frequency: 1.0- 22.6 MHz Ionosphere soundings

22 Vernadsky Boston area Geomagnetic conjugate regions: Vernadsky – USA East Coast Channel for energy transfer from S-hemisphere to N-hemisphere

23 Magnetometer LEMI-008 Measurement range Resolution Range I 100 000 nT 10 nT Range II 3 200 nT 0.1 nT Bandwidth DC 1 Hz Time of sampling 1s, 2s, 5s, 10 s, 60 s Extremely low noise level – less than 5 pT at 1 Hz

24 The geomagnetic micropulsations Pc3 observed simultaneously at Vernadsky and Boston area

25 Troposphere Weather – Space Weather Drake Passage and Antarctic Peninsula –place for cyclones ~ 50 powerful cyclones annually Energy propagation from surface to ionosphereCyclon April 1, 1998

26 Magnetic field and pressure at Vernadsky Correlation AG waves

27 Idea: 1.The severe weather fronts is “projected” on ionosphere 120 km height 2.The delay of magnetic field response - 15-30 minutes (corresponded velocity 10-30 m / s) 3.«Projection» of weather fronts to North hemisphere! Possible carrier? Atmosphere gravity waves AGW: Severe troposphere weather front “pull” the AGW

28 Search of planetary wave propagation to ionosphere heights: E-layer (120 km)

29 LEMI-112a induction magnetometer -ELF receiver: two orthogonal search-coil magnetometers -frequency band 0,1 - 300 Hz -low noise level – less than 0,03 pT/ at 10 Hz.

30 F2 layer height long-term changes : + - Faraday data, х – Vernadsky data Greenhouse effect cooling in mesosphere (90 km), “drop down” of ionosphere layers

31 in Vernadsky region and adjacent territory of Antarctic Peninsula Other research: Geodesy survey, GIS - GPS – gravimetric measurements

32 Permanent dual-frequency GPS receiver antenna installation at Vernadsky, Antarctica, April 2005 - tectonics - total electron content - troposphere humidity

33 Biology, human biology and medicine HUMAN ADAPTATION

34 The toxicant XRF-analysis of gentoo penguin feather of Petermann Island colony, Antarctic Peninsula

35 “clean” hair “dirty” hair Ni, Cu, Pb, Se, Hg Cleaning of human body during winter XRF-analysis of the metals in the winterers hair

36 After winter the Cs amount in body essentially decreased Ukrainian winterers have usually increased amount of R/A Cs in body

37 Conclusion: Priorities of research Climate variability study ( ice cap ) Ozone hole (Oz and UV measurements) Upper atmosphere – Space Weather GIS of the Vernadsky region Creation of UA National Antarctic Database Providing the environmental monitoring Geodetic network – neotectonics Research equipment development

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