Approximate area of the Beaufort Sea, and the disputed waters

The permanent ice-pack covers the northern edge of the Beaufort Sea year-round.

Beaufort Sea winter sea ice terrain, 1949. Photographer: Rear Adm. Harley D. Nygren, NOAA Corps (ret.)

The large Mackenzie River empties into the sea as do other smaller rivers. It is an important habitat for whales and sea birds and is still relatively untouched by commercial traffic.

The Beaufort Sea is also the location of what are believed to be significant petroleum reserves beneath the seabed, a continuation of proven reserves in the nearby Mackenzie River and North Slope.^[1] The Beaufort Sea was first explored in the 1960s and the Amauligak Project of 1986 began operating the first functioning oil platform.

There is an ongoing dispute between Canada and the United States over the delimitation of part of the maritime section of the International Boundary in the Beaufort Sea.^[2][1] Canada claims the maritime boundary to be along the 141st meridian out to a distance of 200 nautical miles (370 km), following the Alaska-Yukon land border.^[3] The United States claims the boundary line to be perpendicular to the coast out to a distance of 200 nautical miles (370 km), following a line of equidistance from the coast.^[4] This difference creates a wedge that is claimed by both nations. This dispute has taken on increased significance due to the possible presence of petroleum reserves within the wedge.^[5] Both nations have put petroleum exploration rights up for bid on sections within this disputed wedge.^[6][7]

The entire Beaufort Sea is totally frozen during much of the year. The permanent ice-pack covers the northern edge of the Beaufort Sea year-round.

References

1. ↑ ^{a b} http://www.institutenorth.org/servlet/download?id=35
2. ↑ CIA - The World Factbook - United States
3. ↑ The Law of the Sea Convention (BP-322E)
4. ↑ p.10 of http://www.dtic.mil/whs/directives/corres/20051m_062305/United_States_America.doc
5. ↑ http://www.cdfai.org/PDF/NORTHERN%20INTERESTS%20AND%20CANADIAN%20FOREIGN%20POLICY.pdf
6. ↑ http://www.ainc-inac.gc.ca/oil/Pdf/BsmdDispoPage.pdf
7. ↑ M:\Maps AutoCAD\Areawide_BS\Tract_Map\2006\Sale Results\BSAW06 Sale Results Map_Color_148_45.dwg 8 of 8 (1)

See also

• Petroleum exploration in the Arctic
• List of areas disputed by the United States and Canada

External links

• Sea Ice in the Beaufort Sea from NASA Earth Observatory

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