Theoretical and Applied Climatology

, Volume 108, Issue 3–4, pp 385–396

Long memory, seasonality and time trends in the average monthly temperatures in Alaska

Original Paper

DOI: 10.1007/s00704-011-0539-0

Cite this article as:
Gil-Alana, L.A. Theor Appl Climatol (2012) 108: 385. doi:10.1007/s00704-011-0539-0


This paper deals with the analysis of monthly temperatures in 19 meteorological stations in Alaska during the last 50 years. For this purpose, we employ a procedure that permits us to examine in a single framework several features observed in climatological time series such as time trends, long-range persistence and seasonality. The results indicate that the highest degrees of persistence are observed in stations located in the southern regions and seasonality appears as a major issue in all cases. Removing the seasonal structure and focussing on the anomalies with respect to the monthly means, the time trend coefficients appear significantly positive in the majority of the cases, implying that temperatures have increased during the last 50 years.

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Faculty of EconomicsUniversity of NavarraPamplonaSpain

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