Challenges of Collecting Data for Article 76 in Ice Covered Waters of the Arctic
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1 Challenges of Collecting Data for Article 76 in Ice Covered Waters of the Arctic 5 th ABLOS Conference Monaco October 16, 2008 Richard MacDougall - Canada Jacob Verhoef - Canada Wendell Sanford - Canada Christian Marcussen - Denmark
2 Outline Requirements UNCLOS Challenges Remoteness Weather Existing Data Survey Seasons Ice Costs Operational Experience Future Plans and Conclusions
3 CLCS guidelines Ice-covered waters mentioned in (bathymetry) and (sediment thickness) 60 M maximum spacing requirement for acquisition of seismic data in and
4 Remoteness IBCAO Version 2.23
5 Weather Average Temperature - Alert March C April C May C June C July 3.2 C Aug 0.8 C Sep C Oct C Hours Daylight Zero October 15 to February hours April 7 to September 5
6 Survey Seasons Winter March and April Daylight Returns Stable Ice conditions Cold and Clear Weather Summer August and September Maximum Ice Melt
7 Ice Conditions July 30
8 Ice Conditions - August 30
9 Ice Conditions September 22
10 Bathymetric data coverage Alaska blue: spot soundings green: US & UK nuclear submarines ( ) red: SCICEX nuclear submarine ( ) Greenland IBCAO 2000
11 Bathymetric data coverage Alaska IBCAO 2008
12 Costs Icebreakers: $65000 to $85000 / Day Aircraft: $1300 to $12500 / Hour; Minimums 3-4 Hr / Day Fuel: Diesel $ $2.50 / L 1-2 Million L per Icebreaker per Summer Survey Jet Fuel Resolute: $2.50 / L by sea; $7 / L by air Eureka: $3.50 / L by sea; $8 / L by air Alert: $10 / L by air Ice Camp: $14 - $20 / L by air 300, ,000 L per Winter Survey Air freight: $ 50 per Kg to Resolute by air $ to $60000 Charter to Ocean Canada and Denmark have launched expensive data acquisition programs
13 Operational Strategies Desk Top studies form the basis for data collection strategy: On-ice test of appurtenance using refraction seismic experiments Eastern part: on ice bathymetry profiles approx. 50 M apart ( ping rate from 10 km to 2 km) Icebreaker surveys in western part and where ice conditions permit for bathymetry and sediment thickness
14 Arctic Ocean Canada Complicated seafloor geology and difficult data collection Eastern Arctic (start in 2006) Western Arctic (start in 2006) EEZ Possible overlaps with USA, Russia and Denmark: need negotiations Program requires at least 5 field seasons of data collection The white zone, or part of it, could be Canada s extended continental shelf under Article 76 Concerns: weather and ice conditions/icebreaker capability
15 Arctic Ocean Greenland Possible ecs area north of Greenland based on desk top study
16 Logistical challenges No commercial survey vessels can operate in this region of the Arctic Ocean Only a few Polar Class icebreakers are available SCICEX US submarines have been decommissioned, UUV concept to be developed Specialized ice strengthened bathymetry and seismic equipment for icebreaker surveys has to be develop Former experience and equipment used in the 80 ties for on-ice surveys have aged Establishment of ice camps on more unstable sea ice Sharing of knowledge and cost through cooperation between Canada and Greenland/Denmark
17 Operational Experience Strategy Western Arctic (from North America perspective) Icebreaker Surveys Sediment Thickness Bathymetry (Foot of Slope) Eastern Arctic Ice Camps Tests of Appurtenance (Alpha & Lomonosov) Bathymetry (Foot of Slope and 2500 m isobath) Sediment Thickness Aero Gravity and Magnetics North of Greenland Icebreakers Ice Camp Aero Gravity and Magnetics
18 Ideal Plan 50 M line spacing
19 Western Arctic Multibeam Test 2005 Seismic System Test 2006 Seismic and Bathymetric Survey Km Single Beam bathymetric data 3000 Km Seismic data Seismic and Bathymetric Survey 2008 CCGS Louis S. St-Laurent / USCGC Healy 2800 Km Seismic data X km Single and Multi Beam bathymetric data Plan Work Towards East to Limit of Icebreaker Capability
20 Deploying Air gun array (weight: 4400 pounds)
21 Using the airgun array on CCGS Louis S. St-Laurent
22 2007 Seismic Survey Plan - achieved Alaska Greenland Light ice sediment Heavy ice Heavy ice in eastern area Light ice in western area 3000 km excellent seismic data 7800 km Bathymetric data basement Alaska Banks I.
23 2008 Plan CCGS Louis S. St-Laurent USCGC Healy
24 2008 Plan - achieved
25 Web-cam on Healy Louis S. St. Laurent breaking ice Healy acquisition of multibeam data Beaufort Sea September 2008
26
27 Eastern Arctic Lomonosov Test of Appurtenance 2006 Bathymetric Survey Spring 2007 Seismic & Bathy Survey LOMROG 2007 Alpha Ridge Test of Appurtenance 2008 Planned: Bathy North Ellesmere Island and Greenland Spring 2009 Bathy and Seismic Lomonosov Summer 09 and 11 Use of UUV s (?)
28 Eastern Arctic: Natural prolongation of submarine ridges/elevations Collaboration with Denmark MOU with Denmark (June 2005) for joint surveying in area north of Greenland / Ellesmere Island Saves Canada & Denmark $ 1.5 million Other advantages: joint data collection and interpretation Project LORITA March 2006 (Lomonosov Ridge Test of Appurtenance) On ice experiment
29 LORITA Lomonosov Ridge Test of Appurtenance Planned Achieved
30 LORITA Refraction seismic experiment on sea ice
31 CHS Bathy Plan in March April 2007
32 CHS Bathy Plan in March April 2007 A B A drainage of sea ice from the Lincoln Sea trough the Nares Strait. B Helicopters with no horizon in spring of 2007 data acquisition not possible..
33 LOMROG: August-September 2007 ACHIEVED PLANED
34 LOMROG: Ice conditions August 1, 2007 September 30, 2007
35 LOMROG: Seismic equipment Airgun Seismic streamer Winch Recording container
36 LOMROG: Ice Escort 50 Let Pobedy and Oden
37 LOMROG: Ice Escort 50 Let Pobedy and Oden
38 LOMROG: The Occasional Snag Seismic streamer caught in heavy sea ice
39 LOMROG: Multi beam acquisition Pirouette surveying 3D-view of the multi beam mapped Morris Jesup Rise north of Greenland
40 ARTA in 2008: Alpha Ridge Test of Appurtenance Staged from Eureka Fuel & Gear into Eureka by Icebreaker Ice Camp - ideally 200 NM offshore (need foot ice runway Not Found) 5 Helicopters 1-2 Twin Otters DC-3 and Buffalo for Camp in / out Two refractionseismic lines LORITA concept Bathymetric profiles ~ 50 M apart
41 ARTA in 2008: Planned and revised survey area March 9 March 15
42 ARTA in 2008: Ice conditions
43 ARTA in 2008: Camp and runway Photos of landfast ice and camp with 900 meter ice runway at entrance of Nansen Sound.
44 ARTA in 2008: Sounding and Gravity Measurements
45 ARTA in 2008: Acquired data
46 Conclusions Risk of Losing a Season due to Remoteness, changing ice conditions and weather are high. Straight Lines and Continuous Profiles are a challenge especially in 10/10 ice. Existing Data supplemented by space and airborne Gravity and ground-truthed where practical will be important. Possible use of new technology UUV. Opportunity for Cooperation & Joint Projects.
47 THANKS!
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