In this video, Drs. Anne Gold and Matthew Shupe quickly overview Module 4: Sea Ice. The metaphorical "glue" that keeps the Polarstern in place, sea ice plays a leading role in both MOSAiC and the Arctic system.

In this specific lesson, Dr. Julienne Stroeve explains her research with MOSAiC in studying Arctic sea ice thickness. Using 40 years of satellite observations, she can track how quickly sea ice volume is declining.

In this specific lesson, Dr. Melinda Webster explains sea ice formation. You'll learn about its role in driving ocean circulation, different shapes the ice can take on, and what affects sea ice growth vs. reduction.

In this specific lesson, Dr. Bonnie Light adds new meaning to her name! You'll learn about sunlight's vital role in the Arctic system — specifically, how it affects melting in the summer and how different albedos play into this.

In this specific lesson, Dr. Jennifer Hutchings describes Arctic sea ice dynamics and how ridges and leads form during the transpolar drift.

In this specific lesson, Dr. Jennifer Hutchings defines sea ice kinetics. Throughout the MOSAiC expedition, scientists will be monitoring the kinematics of ice motion and determining the forces involved in opening, shearing, and closing sea ice.

In this specific lesson, Dr. Donald Perovich discusses sea ice mass balance. You'll learn about the data collection tools used by MOSAiC scientists including stakes, temperature strings, and autonomous buoys that measure Arctic ice melt and growth through the seasons.

In this specific lesson, Dr. Marcel Nicolaus describes his role as MOSAiC's sea ice team leader and why their work is so crucial to the expedition. In studying sea ice, snow, and microorganism habitats, the team hopes to improve Arctic forecasts and better understand how drifting patterns/processes interact.