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Timing Of USAP Ship-Based Resupply at McMurdo

Timing Of USAP Ship-Based Resupply at McMurdo. McMurdo. McMurdo. ODEN Route. Vladimir Ignatyuk Route. Tanker Route. McMurdo. ODEN Route. Vladimir Ignatyuk Route. Cargo Ship Route. Tanker Route. McMurdo. ODEN Route. Vladimir Ignatyuk Route. Cargo Ship Route. Southern Ocean.

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Timing Of USAP Ship-Based Resupply at McMurdo

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  1. Timing Of USAP Ship-Based Resupply at McMurdo

  2. McMurdo

  3. McMurdo ODEN Route Vladimir Ignatyuk Route

  4. Tanker Route McMurdo ODEN Route Vladimir Ignatyuk Route

  5. Cargo Ship Route Tanker Route McMurdo ODEN Route Vladimir Ignatyuk Route

  6. Cargo Ship Route Southern Ocean Tanker Route McMurdo ODEN Route Vladimir Ignatyuk Route

  7. Southern Ocean: Vigorous Storms Damaged Containers Icing Destroyed Winches

  8. Cargo Ship Route Southern Ocean Tanker Route Ross Sea McMurdo ODEN Route Vladimir Ignatyuk Route

  9. 2003 2006 2009 2004 2007 2005 2008 % Pack Ice Cover on 5 February Ross Sea: Select time for passage when open water corridor exists 10 of 11 years open 2012 2010 2013 2011

  10. Cargo Ship Route Southern Ocean Tanker Route Ross Sea McMurdo Sound McMurdo ODEN Route Vladimir Ignatyuk Route

  11. McMurdo Sound: Fast Ice Blockade

  12. Optimization for Ship Time Southern Ocean Select time for passage when storms are less likely Use state of the art weather information to time crossing Ensure ship suitability for withstanding storms Ross Sea Select time for passage when open water corridor exists Use state of the art ice information to route ships through ice Provide icebreaker escort McMurdo Sound Select time for passage when ice edge at maximum southern extent Select time for passage when ice is at its weakest Provide icebreaker escort

  13. Ross Sea: Use state of the art ice information to route ships through ice % Pack Ice Cover 18 Jan 2009

  14. Ross Sea: Provide icebreaker escort

  15. McMurdo Sound: Select time for passage when ice edge at maximum southern extent

  16. McMurdo Sound: Select time for passage when ice edge at maximum southern extent

  17. McMurdo Sound: Select time for passage when ice is at its weakest First Year Sea Ice

  18. Ice at Weakest Ice Growth

  19. Summary of earliest arrival considerations: • No earlier than ~5 December for arrival of icebreaker (based on strength of McMurdo Sound ice) • No earlier than ~15 January for arrival of icebreaker (based on extent of McMurdo Sound ice) • No earlier than ~25 January for first supply ship (based on Ross Sea pack ice) 27 January for First Ship Arrival

  20. Summary of latest departure: • No later than late April (based on northern growth of McMurdo Sound fast ice edge) • No later than middle March (based on shipping channel re-freezing) • No later than than ~14 February (based on probability of open water in Ross Sea) 14 February for Last Ship Departure

  21. Timing of USAP Ship-Based Resupply at McMurdo

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