1. The Ice-edge Position in the Barents Sea since 1579 – related to Sun and Planets
Jan-Erik Solheim,Klimarealistene,
Stig Falck-Pedersen, Akvaplan Niva and University of Tromsø
Ole Humlum, University of Oslo and UNIS, Svalbard
Harald Yndestad, Norwegian University of Science and Technology, Aalesund
London Geoetics Conference Sept

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Co-workers
Stig Falck-Pedersen, marin biologist
At present in the ice North of Svalbard
Ole Humlum (climate4you.com),
Nature Geography
At present with students investigating glaciers
Harald Yndestad, cybernetics
At present in front of his computer
London Geoetics Conference Sept

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4. Still some ice left in the Artic
Polarportal.dk
London Geoetics Conference Sept

5. Ice edge definition today 15 per cent ice
London Geoetics Conference Sept

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The Ice Edge
Photo: Ole Humlum
London Geoetics Conference Sept

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London Geoetics Conference Sept
Ole Humlum

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T. Vinje 2003

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Abraham Stock ( ) Valvisvangst
London Geoetics Conference Sept

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MAXIMUM ICE in APRIL
Norwegian Polar Institute Yearbook (1999)
London Geoetics Conference Sept

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T. Vinje (2003)
London Geoetics Conference Sept

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T. Vinje 2003
London Geoetics Conference Sept

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Polarportal.dk
London Geoetics Conference Sept

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Ice Edge between Svalbard og Frannz Josefs Land - August
London Geoetics Conference Sept

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Soon, Conolly, Conolly, (2015)
London Geoetics Conference Sept

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Yndestad & Solheim (2017)
Solheim et al 2017 In preparation
London Geoetics Conference Sept

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22. Heat loss in North Atlantic
London Geoetics Conference Sept

23. Average Temperature crossing North Atlantic 59N, 30-0W, 0-800 m
London Geoetics Conference Sept

24. Cooling from the bottom!
London Geoetics Conference Sept

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Conclusions
Ice almost to Scotland during LIA
Oil boom in Arctic Seas from 1580
Less ice in April 1769 than in April 2015
Ice edge moving 500 km South
TSI minimum (Dalton)
Same stationary periods in Ice edge and TSI
Next TSI minimum
North Atlantic cooling from 2006
London Geoetics Conference Sept

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References
O. Humlum, climate4you.com
S. Falk-Petersen et al. At the rainbow’s end: high poductivity fueled by winter upwelling along an artic shelf, Polar biology, (2014)
T. Vinje, Ice extent in the Nordic Seas during the last centuries, Proceedings of the ACYS Final Science Conferene, St Petersburg, Russia, Nov 2003, WCRP118 (CD)
H. Yndestad, The influence of long tides on ecosystem dynamics in the Barents Sea, Deep Sea Research II, (2007)
H. Yndestad and J.-E. Solheim, The influence of solar system oscillation on the variability of the total solar irradiance, New Astronomy (2017)
London Geoetics Conference Sept