Low Level Jets at the Ice Edge


What are ice edge jets and why should we care?

The ice edge is the border between the sea ice and the open ocean (Figure 1), and jets are bands of high wind speeds in the atmosphere. Earlier studies showed that wind systems like the Greenland tip jet (Våge et al., 2009) or barrier winds at the east coast of Greenland (Harden et al., 2011) act on the ocean circulation and hence influence the climate. We expect that the ice edge also favors certain wind regimes, which have an impact on the climate. The effect of the ice edge on the weather is another point to consider. Low level jets are associated with high wind speeds. Over the ocean, these fast winds  are mixed down to the surface where they cause rough seas. Ships staying in this area can get into dangerous situations. We also suppose…

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