A tiny lake beside Canada’s oldest ice mass creates a surreal scene from space

The peaks of the distant Arctic terrain in the Canadian island of Baffin Island, a 2010 satellite image shows a view that is like a dream. A tiny, dark lake is cut cleanly across the bright, icy edge of an ancient glacier making a stark contrast between the ice and water. Gee Lake, also known as Gee Lake, stretches roughly 2 miles wide when it is widest and lies along the southern part of the Barnes Ice Cap, one of the most striking remains of the glacier's history.

It is located in Nunavut in the middle of in the Arctic Circle, this icy landscape is much from merely a frozen landscape. It's an actual relic of an enormous Ice sheet which once controlled the majority the continent of North America.


The very last piece of the massive Ice sheet

Its Barnes Ice Cap spans around 2,300 square miles. It also is characterized by a distinctive "bowling-pin" form when seen from the top. Its uniqueness isn't just the dimension or appearance however, it's its story. Researchers have verified that this is the final left from the Laurentide Ice Sheet that was the massive ice sheet which covered the majority areas of Canada and extended to the northwestern United States up to 100,000 years ago.

The ancient ice sheet played an important role in shaping the geography of Africa by forming basins that eventually became what would later be the Great Lakes. When the last ice age ended around 22,000 years ago, a large portion part of the Laurentide Ice Sheet disappeared. The rest of the ice slowly moved towards the north and then centered in the area of what is now Baffin Island.

In a 2008 study entitled Radiocarbon Dating of Ice Core Samples of the Barnes Ice Cap, conducted by researchers at University of Colorado Boulder. University of Colorado Boulder in the United States, portions of the Barnes Ice Cap itself date to around 20,000 years ago. It's the longest known ice cap in Canada that has preserved an archive frozen of Earth's history in climatic terms.

What does the satellite image reveal

The satellite photo captured in early September of 2010 provides a rare view of the glacier in its somewhat exposed condition. In the late summer warm weather, the warmer temperatures had melting away a significant portion of the snow layer. In the process, the grayer, darker layer of the glacier's surface becomes apparent.

The coloration of this ice isn't an accident. It's caused by layers of dust that have been trapped in the ice for hundreds of thousands of years with each layer corresponding to a distinct date in the past. Scientists are often comparing the layers with pages from the history books, describing the conditions of the environment that are much older than that of humankind.

Over the glacier's entire surface The long, parallel grooves run from east to west. The striations are similar to the growth lines of a clamshell creating the appearance of an undulating or rippling surface. But the glaciologist Ted Scambos from the National Snow and Ice Data Center clarifies that the glacier's surface is in fact very smooth. The grooves were created by the flow of melting water through the ice, slowly creating its surface as time passes.

The process of melting Ice

Although Barnes Ice Cap remains, Barnes Ice Cap remains today however, the bulk of the parent Ice Sheet has since gone. A study from 2009 titled The Deglaciation Pathways of the Laurentide Ice Sheet that was carried out by the Geological Survey of Canada in Canada it revealed that the melting ice was once flowing through fjords nearby. One route that was identified was the Kangiqtualuk Uqquqti Fjord, located approximately 70 miles to the northeast to Gee Lake.

In these channels huge volumes of melting water poured into the ocean, causing the rising sea level and changing ocean systems. Today, the impacts from that melting process are continuing to impact ocean currents across the globe.

Long-lasting effects on the modern world

The loss from the Laurentide Ice Sheet created many more physical marks in the earth. The enormous weight it imposed into the earth's crust. The ice was melting and the earth was slowly regaining its shape and rebound, which is referred to as the isostatic adjustment.

Recent research indicates that the rebound remains active and is contributing to land movements in certain regions in North America. Some regions are experiencing this shift in ground can be associated with a gradual sinking in the major U.S. cities, while being a problem for areas as far as Greenland.

This long-term effect shows how the events that occurred hundreds of years ago still shape the current world in surprising ways.

An uncertain future for the old ice

Despite its endurance over the course of millennia, Barnes Ice Cap is now in danger. Similar to glaciers in the Arctic as well as Antarctica It is rapidly diminishing because of an increase in global temperatures caused by the human-driven climate change.

At present, the pace of decline is somewhat modest as the glacier is losing just some meters every year. But, researchers warn that the rate of retreat is expected to grow faster as climate change accelerates.

A study from 2017 titled Projected Decline of the Barnes Ice Cap that was conducted by scientists at the University of Utrecht in the Netherlands forecasts that the majority of the glacier may disappear over the following 300 years. If the projection is true it is possible that this Barnes Ice Cap may eventually disappear, marking the conclusion of the once powerful Laurentide Ice Sheet.

A strong message of the universe

The sight of Gee Lake cutting across the glacier's rim with snow old glacier is not simply a visual delight. It is a powerful reminds us of the earth's dynamism as well as the fragile balance which sustains the ecosystems of its nature.

From the huge glaciers of the past, to shrinking glaciers our time, the history of the Barnes Ice Cap connects deep time to the present. As seen from space, this solitary encounter of ice and water is a larger narrative about resilience, change as well as the future of the planet.