Articles | Volume 8, issue 4
Research article
26 Oct 2017
Research article |  | 26 Oct 2017

Climate indices for the Baltic states from principal component analysis

Liga Bethere, Juris Sennikovs, and Uldis Bethers

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Cited articles

BACC II: Second assessment of climate change for the Baltic Sea basin, Reg. Clim. St., Springer,, 2015.
Baeriswyl, P. A. and Rebetez, M.: Regionalization of precipitation in Switzerland by means of principal component analysis, Theor. Appl. Climatol., 58, 31–41,, 1997.
Belda, M., Holtanová, E., Halenka, T., and Kalvová, J.: Climate classification revisited: from Köppen to Trewartha, Clim. Res., 59, 1–13,, 2014.
Benzi, R., Deidda, R., and Marrocu, M.: Characterization of temperature and precipitation fields over Sardinia with principal component analysis and singular spectrum analysis, Int. J. Climatol., 17, 1231–1262,<1231::aid-joc170>;2-1, 1997.
Bethere, L., Sile, T., Sennikovs, J., and Bethers, U.: Impact of climate change on the timing of strawberry phenological processes in the Baltic States, Est. J. Earth Sci., 65, 48–58,, 2016.
Short summary
We define three new climate indices based on monthly mean temperature and total precipitation values that describe the main features of the climate in the Baltic states. Higher values in each index correspond to (1) less distinct seasonality and (2) warmer and (3) wetter climate. It was calculated that in the future all three indices will increase. Such indices summarize and illustrate the spatial features of the Baltic climate, and they can be used in further analysis of climate change impact.
Final-revised paper