Home / Environment / Giant Icebergs Emerge from New Zealand Glacier
Giant Icebergs Emerge from New Zealand Glacier
9 Sep
Summary
- Tasman Glacier's melting created a new lake and large icebergs.
- A massive calving event in August 2010 created over twenty large icebergs.
- The glacier has been retreating an average of 180 meters per year since 1990.
The Tasman Glacier, New Zealand's longest at approximately 27 kilometers, is a prominent feature within Aoraki/Mount Cook National Park. Its terminus has been steadily melting over recent decades, leading to the formation and growth of Tasman Lake. Scientific reports indicate the glacier has retreated by an average of about 180 meters annually since 1990, transforming the landscape.
A notable calving event occurred in August 2010, significantly altering the lake's appearance. Heavy rainfall days prior caused meltwater to push submerged ice upwards, leading to a massive section of the glacier breaking free. This resulted in the formation of an impressive iceberg field, with over twenty large icebergs, some measuring 300x200 meters, becoming a temporary tourist attraction.
Further significant calving events have followed, including one in February 2011 after the Christchurch earthquake, which saw approximately 30 million tonnes of ice detach. These events are part of the glacier's ongoing retreat and Tasman Lake's expansion, offering dynamic and awe-inspiring views for visitors.
