Petermann Glacier on July 16, 2012 1200 UTC.
July 17, 2012 - - On July 16, 2012, between 1000 and 1200 UTC, a large section of the Petermann Glacier’s floating ice tongue calved into the Petermann Fiord, creating a new ice island. The estimated area of the main ice island is approximately 130 km2, equivalent to roughly one quarter of the size of Montreal island (ice island size compared to other Canadian cities) and approximately half the size of the Petermann ice island that calved in August 2010.
Petermann Glacier on July 17, 2012 1223 UTC.
Ice islands from this glacier drifts southwards into Baffin Bay and periodically down the Labrador coast, sometimes reaching Newfoundland, where they pose a hazard to shipping and navigation.
Petermann Ice Islands on May 19-21, 2012.
May 21, 2012 - - Petermann Ice Island-B-a calved into 2 pieces in November; both pieces are grounded in Lancaster Sound. PII-B-1, PII-B-2-a are also still grounded while PII-B-2-b is trapped in land-fast ice.
Petermann Ice Islands on March 4-5, 2012.
March 7, 2012 - - Most fragments are grounded; however, there are two pieces which are mobile: PII-C and PII-C-2.
Petermann Ice Islands on December 6-8, 2012.
January 9, 2012 - - The pieces have moved apart quite a bit since mid-December. The overall surface area of almost every Petermann fragment decreased slightly during the last half of December.
Petermann Ice Island-B-2 on December 14, 2011.
Petermann Ice Island-B-1 on December 11, 2011.
December 15, 2011 - - Petermann Ice Island-B-1 remains grounded off the coast of Baffin Island. Its areal extent is measured to be approximately 40 km2. PII-B-1-a is grounded but pivots depending on the direction the sea ice is flowing nearby with the prevailing winds and ocean currents.
PII-B-2a is still grounded but appears to be pivoting on itself and re-orienting itself with the wind and ice movement. PII-B-2b had been drifting away from PII-B-2a; however, has recently drifted back towards PII-B-2a.
Petermann Ice Island-B-a on December 11, 2011.
Petermann Ice Island-C on December 11, 2011.
PII-B-a is still mobile in Barrow Strait, but not moving very far or very fast due to sea ice pack.
PII-C is now east of Bylot Island and still mobile, moving roughly parallel to the coast of Baffin Island. The water current in this general area keeps the ice moving throughout the winter.
Petermann Ice Island-B-a on November 28, 2011.
Petermann Ice Island-B1 & B2 on November 27, 2011.
November 23, 2011 - - PII-B-1 has rotated. The pivot point was located at 69° 38’ 47”N and 65° 50’ 56” W. As the ice exerted more forces on the grounded piece, it pivoted just over 90 degrees on an axis of least resistance with the prevailing southeastward water current along Baffin Island.
PII-B-2 fractured between November 25 and November 27, 2011, the fragment with the beacon is now grounded off Baffin Island. The two new pieces have been named PII-B-2a and PII-B-2b. After the calving event, PII-B-2a remained on the spot while PII-B-2b drifts south-eastward during the 3-day period.
Petermann Ice Island-C on November 28, 2011.
PII-B-a is drifting through Barrow Strait toward Lancaster Sound.
Two of the PII-C fragments are located near Bylot Island. There is another PII-C piece of ice further west in Lancaster Sound.