Thursday, December 4, 2008

Are There Long-Term Trends in The Start Of Freeze-Up And Melt Of Arctic Sea Ice?

The finding in this data is that there is no clear evidence of a delay in the start of the later summer/early fall freeze up or the start of the late winter/early spring melt despite the well below average areal sea ice coverage.

A priority in the climate modeling community should be an examination of their predictions of trends in the start of freeze up and start of melt dates, in order to see how they conform to the observational data. Also, the reason that the added atmospheric concentrations of well-mixed greenhouse gases are not changing the dates as expected needs to be provided.

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