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NOAA At The Ends of the Earth Collection
Catalog of Images

600 thumbnail picture
Lead-producing fractures in the pack ice.
Alaska, Beaufort Sea 2007 April 1
601 thumbnail picture
Long lineal fractures through a mix of old hummocky ice and first-year smooth ice.
Alaska, Beaufort Sea 2007 April 1
602 thumbnail picture
Fracture in pack ice passing through a pressure ridge leaving brash ice in the frozen over fracture.
Alaska, Beaufort Sea 2007 April 1
603 thumbnail picture
A lead extending for kilometers through the pack ice. This lead has re-opened and has frozen over again.
Alaska, Beaufort Sea 2007 April 1
604 thumbnail picture
Young ice formed over a lead. Note the orthogonal fracture patterns in the ice.
Alaska, Beaufort Sea 2007 April 1
605 thumbnail picture
Pack ice with pressure ridges criss-crossing in seeming random fashion. Imagine taking a dog sled through this terrain on a trip to the North Pole. Some of these ridges are at least ten feet high.
Alaska, Beaufort Sea 2007 April 1
606 thumbnail picture
Pressure ridges, hummocks, and the frozen remains of a melt pond in the middle of the image.
Alaska, Beaufort Sea 2007 April 1
607 thumbnail picture
A large frozen over melt pond
Alaska, Beaufort Sea 2007 April 1
608 thumbnail picture
A refreezing lead through the pack ice.
Alaska, Beaufort Sea 2007 April 1
609 thumbnail picture
A significant pressure ridge formation
Alaska, Beaufort Sea 2007 April 1
610 thumbnail picture
Lead frozen over with new ice
Alaska, Beaufort Sea 2007 April 1
611 thumbnail picture
Remarkable rectangular break in pack ice with young ice formed in rectangle.
Alaska, Beaufort Sea 2007 April 1
612 thumbnail picture
New ice formed in lead.
Alaska, Beaufort Sea 2007 April 1
613 thumbnail picture
Pressure ridges enclosing bare ice
Alaska, Beaufort Sea 2007 April 1
614 thumbnail picture
Brash ice frozen in place.
Alaska, Beaufort Sea 2007 April 1
615 thumbnail picture
Lead filled with brash ice.
Alaska, Beaufort Sea 2007 April 1
616 thumbnail picture
Remarkable pattern of pressure ridges and large blocks of upthrown ice. Possibly an area of active ridge formation with brash ice.
Alaska, Beaufort Sea 2007 April 1
617 thumbnail picture
A lead through the ice pack with different types of ice as seen from a helicopter. Whether the dark streak is open water or grease ice is indeterminate. New and young ice is forming.
Alaska, Beaufort Sea 2007 April 1
618 thumbnail picture
Hummocky ice, what appear to be refrozen icicles but probably caused by wind effects, rough surface caused by wind ablation, and other structures in multi-year ice.
Alaska, Beaufort Sea 2007 April 1
619 thumbnail picture
Hummocky ice, remnants of ridges, and various wind, water, and freezing patterns captured in the surface expression of multi-year ice.
Alaska, Beaufort Sea 2007 April 1
620 thumbnail picture
Frozen melt ponds , a linear feature indicating fractured ice, and a variety of other features are seen on this multi-year ice. The patterns are not easy to discern because of snow cover.
Alaska, Beaufort Sea 2007 April 1
621 thumbnail picture
Parallel ridges with huge blocks of blue green ice thrown up. Like the subduction zones of plate tectonics that build mountain ranges, these features are the result of buckling caused by the great pressure of colliding ice floes. Probably second year ice.
Alaska, Beaufort Sea 2007 April 1
622 thumbnail picture
Cracking fracturing ice as a lead opens up.
Alaska, Beaufort Sea 2007 April 6
623 thumbnail picture
Young ice in a lead that will melt as spring advances and summer comes on.
Alaska, Beaufort Sea 2007 April 6
624 thumbnail picture
Multi-year ice with patterns caused by collisions, freezing and refreezing, and wind patterns caused by ablation and wind-sculpted snow.
Alaska, Beaufort Sea 2007 April 6
625 thumbnail picture
A fracture in the ice field. GPS buoy equipment was monitoring the deformation of the ice in this area.
Alaska, Beaufort Sea 2007 April 6
626 thumbnail picture
An open lead in the ice field.
Alaska, Beaufort Sea 2007 April 3
627 thumbnail picture
A hummocky surface. Imagine traversing this terrain with a dog sled as did the early Arctic explorers. This surface is highly deformed old ice.
Alaska, Beaufort Sea 2007 March 30
628 thumbnail picture
A hummocky surface. Imagine traversing this terrain with a dog sled as did the early Arctic explorers.
Alaska, Beaufort Sea 2007 March 31
629 thumbnail picture
A terrain with ridges in thick first-year ice with large blocks of ice. Note the pattern in the ledge showing snow and ice layers similar to sedimentary layers in sand dunes. Find the footprint for scale.
Alaska, Beaufort Sea 2007 March 31
630 thumbnail picture
Looking over a frozen melt pond towards a hummocky ice landscape in multi-year ice.
Alaska, Beaufort Sea 2007 March 31
631 thumbnail picture
An ice beacon monitoring air temperature and pressure and ice drift.
Alaska, Beaufort Sea 2007 April 1
632 thumbnail picture
On the ice field. A small area of sastrugi, wind-sculpted snow and ice, in the foreground.
Alaska, Beaufort Sea 2007 April 2
633 thumbnail picture
Huge blocks of ice forming a pressure ridge. This is a first-year ice ridge.
Alaska, Beaufort Sea 2007 April 2
634 thumbnail picture
Scientists inspecting blocks of ice on pressure ridge.
Alaska, Beaufort Sea 2007 April 2
635 thumbnail picture
Huge blocks of ice forming a pressure ridge.This is first year-ice
Alaska, Beaufort Sea 2007 April 2
636 thumbnail picture
Huge blocks of ice forming a pressure ridge with scientist providing scale of features.
Alaska, Beaufort Sea 2007 April 2
637 thumbnail picture
Huge blocks of ice forming a pressure ridge with icicles formed from melting probably caused by sun heating ice and causing localized melting and refreezing.
Alaska, Beaufort Sea 2007 April 2
638 thumbnail picture
A mass of huge blocks of ice forming a pressure ridge.
Alaska, Beaufort Sea 2007 April 2
639 thumbnail picture
Scientist standing by block of ice for scale on pressure ridge.
Alaska, Beaufort Sea 2007 April 2
640 thumbnail picture
How much force could cause this pile of huge blocks of ice to form? These are blocks of ice formed from level first year ice.
Alaska, Beaufort Sea 2007 April 5
641 thumbnail picture
A refrozen fracture with nilas ice and frost flowers. flowers.
Alaska, Beaufort Sea 2007 April 9
642 thumbnail picture
A fracture in the ice field. This fracture appears to have been caused by some shearing as well as pulling apart.
Alaska, Beaufort Sea 2007 April 9
643 thumbnail picture
Unusual remnant of older multi-year ice. .
Alaska, Beaufort Sea 2007 April 9
644 thumbnail picture
Snow surface of piece of an ice floe that has been pushed under water by the reclosing of a lead.
Alaska, Beaufort Sea 2007 April 12
645 thumbnail picture
Snow surface of piece of an ice floe that has been pushed under water by the reclosing of a lead.
Alaska, Beaufort Sea 2007 April 12
646 thumbnail picture
Looking down through openings within a ridge to the waters of the Beaufort Sea.
Alaska, Beaufort Sea 2007 April 12
647 thumbnail picture
Dr. Pablo Clemente-Colon next to blocks of ice on a ridge for scale.
Alaska, Beaufort Sea 2007 April 12
648 thumbnail picture
An opening fracture in the ice field. Flags are set to monitor motion.
Alaska, Beaufort Sea 2007 April 2
649 thumbnail picture
Looking through a porthole of the HEALY to view of second or multi-year ice with aquamarine melt pools .
Alaska, Beaufort Sea 2009 August 12

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Last Updated:
June 10, 2016