Time series of an index for the occurrence of cold waves and heat waves

Developed for the 2014 NCA. New reports and images will be added as they become available.

Wed, 01/09/2013 - 00:09 -- mbp

General Information

Time series (1949-2010) of an index for the occurrence of: cold waves defined as 4-day periods (blue) and 7-day periods (red) that are colder than the threshold for a 1-in-5 year recurrence (top), and heat waves defined as 4-day periods (blue) and 7-day periods (red) that are warmer than the threshold for a 1-in-5-year recurrence (bottom), for Alaska. Based on data from the National Climatic Data Center First-Order Surface Weather Observing Stations and based on methods from Kunkel et al. (1999).
Data Type: 
Observed
Variable Type: 
Temperature

Source Information

Image Source: 
Ken Kunkel

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