Extended Continental Shelf Summary of Missions

Canadian-US Extended Continental Shelf logo.

The U.S. ECS Program conducted two cruises in 2012 including an Atlantic Mission and an Arctic Mission.

The U.S. ECS Program conducted four cruises in 2011 including Gulf of Alaska, Bering Sea, Necker Ridge and Arctic Ocean.

Since 2003, the United States has collected more than one million square kilometers of bathymetric data from thirty-four cruises : Arctic Ocean (2003, 2004, 2007, 2008, 2009, 2010) Gulf of Alaska (2005), Gulf of Mexico (2007), Atlantic Ocean (2004, 2005, 2008), Northern Mariana Islands and Guam (2006, 2007), the Bering Sea (2003), Hawaii (2009), and U.S. West Coast/ Pacific Ocean (2009). Cruises for 2010 included the Northern Mariana Islands, Kingman Reef and Palmyra Atoll, and the third joint expedition with the United States and Canada in the Arctic Ocean. Much of this data collection was coordinated through the Joint Hydrographic Center, a partnership between NOAA and the University of New Hampshire.

The following matrix contains all 2003-2011 mission information.

ECS Region Dates Ship   Bathy
data
(sq km)

Seismic
Data
(linear km)

Arctic Aug 30 - Sep 10, 2003 USCGC Healy   10,000
Oct 6 - 26, 2004 USCGC Healy   20,000
Aug 16 - Sep 14, 2007 USCGC Healy   70,000
Aug 8 - Sep 5, 2008 USCGC Healy   34,600
Sep 5 - Oct 1, 2008 USCGC Healy   29,158
Aug 21 - Oct 3, 2008 CCGS Louis S. St-Laurent   4,217
Aug 6 - Sep 16, 2009 CCGS Louis S. St-Laurent   4.069
Aug 7 - Sep 16, 2009 USCGC Healy   66,135
Aug 4 - Sep 15, 2010 CCGS Louis S. St-Laurent   3,600
Aug 3 - Sep 4, 2010 USCGC Healy   47,663
Aug 15 - Sep 28, 2011 USCGC Healy   58,000
2011 CCGS Louis S. St-Laurent   1,437
Atlantic Aug 30 - Sep 18, 2004 USNS Henson 255,000
Total all 3 legs
x  
Sep 25 - Oct 20, 2004 USNS Henson x  
Oct 29 - Nov 29, 2004 USNS Henson x  
Apr 30 - May 30, 2005 USS Pathfinder 148,500
Total both legs
x
June 5 - 23, 2005 USS Pathfinder x
May 1 - 31, 2008 Roger Revelle   124,216
Bering Sea July 7 - 28, 2003 Davidson   8,136  
Jul 7 - 28, 2003 Davidson   12,764  
Aug 8 - Sep 2, 2011 Marcus G. Langseth   49,581 2,200
Gulf of Alaska Jun 24 - Jul 29, 2005 Kilo Moana   321,466
Jun 6 - 26, 2011 Marcus G. Langseth   69,060 3,200
Gulf of Mexico Jun 21 - Jul 8, 2007 Northern Resolution   32,300
Kingman Reef & Palmyra Atoll May 12 - Jun 16, 2010 Kilo Moana   107,435
Mendocino Ridge May 5 - 26, 2009 Okeanos Explorer   14,136
Necker Ridge Aug 26 - 31, 2009 Okeanos Explorer 18,207
Total both legs
x
Sep 16 - 21, 2009 Okeanos Explorer x
Jul 31 - Aug 10, 2011 Kilo Moana   47,394
Northern Mariana Islands and Guam Oct 15 - Nov 15, 2006 USNS Bowditch   92,111
Nov 16 - Dec 17, 2007 USNS Bowditch   92,151
Aug 6 - Sep 5, 2010 USNS Sumner   187,503
Sep 24 - Oct 21, 2010 USNS Sumner   156,023


Data collected on ECS missions are available through the ECS Information Management System at the National Geophysical Data Center.