Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
Twenty-five Alberta communities receive support for stronger asset management practices
OTTAWA, ON - As we continue to adapt to the new...
Colonnade Acquisition Corp. Announces Extraordinary General Meeting Date to Approve Proposed Business Combination with Ouster
WEST PALM BEACH, Fla.- Colonnade Acquisition Corp. (NYSE: CLA)...
Maxar’s Vricon Awarded Phase 2 of U.S. Army’s One World Terrain Contract
WESTMINSTER, Colo. - Maxar Technologies (NYSE:MAXR) (TSX:MAXR), a trusted...
Europe’s Falck in partnership with Silicon Valley’s Kitty Hawk
SILICON VALLEY, Calif. - Emergency response and healthcare company...
LeddarTech Launches PixSet, the Industry’s First Full-Waveform Flash LiDAR Dataset
QUEBEC CITY - LeddarTech®, a global leader in Level 1-5...

 

In early April 2012, snow blankets most of the land around this corner of Hudson Bay and sea ice coats the water in the bay. Click on image to enlarge.

NASA’s Aqua satellite observed ice retreat in Hudson Bay, which typically begins in May and can melt out completely sometime in July. In the April 2012 image, abundant ice makes individual features difficult to distinguish. However, in the June 2012 image, Akimiski Island and the Belcher Islands seem to magically appear.

Two months later, snow has melted and ice has retreated, leaving Akimiski Island and the Belcher Islands easier to spot.

In early April 2012, snow blankets most of the land around this corner of the bay, and sea ice coats the water in the bay. The sea ice isn’t a uniform sheet of frozen material. Instead, pieces of ice of varying sizes drift with winds and currents. Breaks in the ice allow glimpses of dark ocean water. Still, ice covers most of the water. Patches of open water in the southeastern corner of the bay owe their existence to winds pushing ice away from shore.

Two months later, snow has melted and ice has retreated, leaving Akimiski Island and the Belcher Islands easier to spot. The ice in Hudson Bay has taken on a bluish tinge, likely due to waterlogged ice and surface melt on the ice. Note that ice has moved into some areas—for instance south and west of the Belcher Islands, where it had not appeared in early April. The ice isn’t spreading; it’s simply moving and, broken into small pieces, it can drift easily. Unlike two months earlier, areas of open water result from melt.

Images courtesy of NASA.

Read the full story.

Comments are closed.