Iceberg Alley: Origin & Threats

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Which year had the highest number of icebergs reported?

2010

1966

1913 (correct)

2021

What is the primary purpose of the International Ice Patrol?

To monitor iceberg dangers for ships in the North Atlantic (correct)

To count the number of icebergs in Newfoundland

To study the effects of climate change on iceberg formation

To provide iceberg sightseeing tours

In which location is the longest and most reliable time series of icebergs available?

Newfoundland

48 degrees north (correct)

The Arctic Circle

The North Atlantic

What is the typical number of icebergs expected to cross the boundary in an average year?

800 Signup and view all the answers

What is the common activity that locals and visitors engage in every spring in Newfoundland?

Iceberg sightseeing Signup and view all the answers

What is the primary reason for the variability in iceberg counts from year to year?

Unknown environmental factors Signup and view all the answers

What is the approximate latitude of the southernmost region where icebergs can be regularly seen?

48 degrees north Signup and view all the answers

What is the main reason why the Greenland ice sheet is losing mass?

Anthropogenic climate change Signup and view all the answers

How long can some icebergs live for?

Up to a decade Signup and view all the answers

What is the origin of most icebergs that reach Newfoundland?

The west coast of Greenland Signup and view all the answers

What is the significance of the year 1912 regarding icebergs?

It was the year the Titanic sank Signup and view all the answers

What might be the consequence of the planet's warming on Iceberg Alley?

It will lead to fewer icebergs in the region Signup and view all the answers

What has transformed the snow into ice in the Greenland ice sheet?

The pressure from the enormous weight of ice Signup and view all the answers

What was observed in 2011 in terms of iceberg formation?

Two icebergs were formed Signup and view all the answers

What is the projected fate of the Iceberg Alley?

It may lose its name Signup and view all the answers

How many years had no iceberg formation according to the text?

Two years Signup and view all the answers

What is the thickness of the Greenland ice sheet?

One kilometre Signup and view all the answers

What is the estimated number of Olympic pools of water that could be formed if the ice equivalent of 100 million tons were to melt?

100,000 Signup and view all the answers

What was the record number of icebergs observed in a year in the Grand Banks of Newfoundland?

2,202 Signup and view all the answers

What percentage of icebergs from Greenland’s glaciers melt directly in Greenland’s fjords?

10–50% Signup and view all the answers

What is the term used to describe the process of ice breaking off from glaciers?

Calving Signup and view all the answers

In what decade were the 1980s and ‘90s characterized as an especially cold period?

1980s Signup and view all the answers

What was the number of icebergs observed in 2019, a year characterized by colder than normal spring temperatures?

1,515 Signup and view all the answers