Reindrift

Reindrift is a phenomenon observed in the Arctic region, particularly in the Barents Sea, where ice floes are carried by ocean currents and winds away from their original formation areas. This process is a significant component of the Arctic sea ice dynamics and plays a crucial role in the overall climate system.

The term "reindrift" originates from the Norwegian word "reindrift," which refers to the drift of reindeer herds. In the context of sea ice, reindrift describes the movement of ice floes from their formation areas, typically the marginal ice zones, towards the central Arctic Ocean. This movement is driven by a combination of ocean currents, such as the Transpolar Drift, and atmospheric conditions, including winds and storms.

Reindrift ice typically has a different composition and thickness compared to the ice formed in situ. It often includes a higher proportion of multiyear ice, which has survived multiple summers, and is generally thicker and more resilient than seasonal ice. This thicker ice can have a significant impact on the overall sea ice extent and thickness in the Arctic.

The reindrift process is influenced by various factors, including oceanography, meteorology, and sea ice dynamics. Changes in these factors can alter the patterns and rates of reindrift, potentially affecting the Arctic climate and ecosystems. For instance, shifts in ocean currents or changes in wind patterns can lead to variations in the distribution and thickness of reindrift ice.

Reindrift is a complex and dynamic process that requires further study to fully understand its implications for the Arctic environment. Ongoing research aims to improve our knowledge of reindrift and its role in the broader Arctic system.