Showing 4 posts tagged glaciers

Marine scientist and Stanford PhD student Cassandra Brooks narrates a two month long time-lapse view from an ice breaker — a specially-designed ship with “a strengthened hull, an ice-clearing shape, and the power to push through sea ice.”

Cassandra joined the Nathaniel B. Palmer research vessel in the Ross Sea, Antarctica, to track the phytoplankton bloom and study organic carbon in the waters as the seasons shift from summer to autumn. She’s also exploring the balance between the region’s fishing industry — Antarctic toothfish are caught here and later sold on the market as “Chilean sea bass" — with the conservation of this remote and celebrated ecosystem for scientific study.

via National Geographic’s Ocean Views.

More videos from Antarctica are in the archives. 

When you drill 364 meters (1194 feet) down into Antarctic ice, taking out a cylindrical section called an ice core, you can find out about the Earth’s temperature and carbon dioxide levels from over 20,000 years ago. Information is held within the oxygen atoms in the ice and the air bubbles that formed within it.

Measuring ice cores is an effective form of time travel for scientists like the British Antarctic Survey team, who are studying how the Earth’s climate is changing. And Antarctica is full of untapped information:

Antarctica is thought to have been covered by ice for over 30 million years. So far, scientists have drilled ice cores stretching back 800,000 years, and they are now working to extend their records back to 1.4 million years ago.

In this video, Ice Core Scientist Nerilie Abram explains the process. You can also read more about the team’s work here.

Professor Brian Cox uses the Perito Moreno glacier in Patagonia, Argentina to help explain the Arrow of Time; a concept that tells us why sequences happen in the order they do.

From wikipedia: “Entropy is the only quantity in the physical sciences… that requires a particular direction for time… Hence, from one perspective, entropy measurement is a way of distinguishing the past from the future.”

The power and beauty of irreversible change. There is poetry in science.