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Term: Seasonal freezing index Class:  
 vernacular   (0%)
Created 6 June 2017
Last modified 6 June 2017
Contributed by GCW Glossary

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Definition: The cumulative number of degree-days below 0 degrees Celsius, calculated as the arithmetic sum of all the negative and positive mean daily air temperatures (degrees Celsius) for a specific station during the time period between the highest point in the fall and the lowest point the next spring on the cumulative degree-day time curve.  NSIDCCryosphere 

The cumulative number of degree-days below 0˚C, calculated as the arithmetic sum of all the negative and positive mean daily air temperatures (˚C) for a specific station during the time period between the highest point in the fall and the lowest point the next spring on the cumulative degree-day time curve  IPAPermafrost 

 GCW 
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