0 a large mass of ice floating in the sea that has been formed by smaller pieces of ice being forced together
The observation programme of obtaining ocean-wave spectra at different distances inside the pack ice necessitated stopping the ship every six hours and suffering the consequent heavy rolling!
Note that although this volume is not suitable for rigorous citation, it represents the author's authoritative collection of insights and perspectives covering the body of scientific knowledge regarding pack ice.
In the section on marine mammals, this implies these animals are never found in leads, polynias, or in the pack ice at all, which is misleading.
This meant landing and building an observatory in the least accessible and virtually unexplored part of the continent protected by an extensive zone of unpredictable pack ice.
This proved an exhausting journey, taking six days over the melting pack ice.
Many weaned crabeater seal pups were seen in both the pack ice and along the continental margin.
It was estimated at 90 feet high and some of it turned completely upside down and crumbled into pack ice.
Grant appeared to be very nervous and was clearly upset when the vessel approached the edge of the pack ice.
