Winter North Atlantic Oscillation impact on European precipitation and drought under climate change
The North Atlantic Oscillation (NAO) is responsible for the climatic variability in the Northern Hemisphere, in particular, in Europe and is related to extreme events, such as droughts. The purpose of this paper is to study the correlation between precipitation and winter (December–January–February–March (DJFM)) NAO both for the historical period (1951–2000) and two future periods (2001–2050 and 2051–2100). NAO is calculated for these three periods by using sea level pressure, while precipitation data from seven climate models following the representative concentration pathway (RCP) 8.5 are also used in this study. An increasing trend in years with positive DJFM NAO values in the future is defined by this data, along with higher average DJFM NAO values. The correlation between precipitation and DJFM NAO is high, especially in the Northern (high positive) and Southern Europe (high negative). Therefore, higher precipitation in Northern Europe and lower precipitation in Southern Europe are expected in the future. Cross-spectral analysis between precipitation and DJFM NAO time series in three different locations in Europe revealed the best coherence in a dominant cycle between 3 and 4 years. Finally, the maximum drought period in terms of consecutive months with drought is examined in these three locations. The results can be used for strategic planning in a sustainable water resources management plan, since there is a link between drought events and NAO.
This work is partly supported by the IMPREX project funded by the European Commission under the Horizon 2020 framework program (grant 641811).
- Hu Q, Feng S (2001) Variations of teleconnection of ENSO and interannual variation in summer rainfall in the central United States. J Clim 14(11):2469–2480. https://doi.org/10.1175/1520-0442(2001)014<2469:VOTOEA>2.0.CO;2CrossRefGoogle Scholar
- Hurrell JW (1995) Decadal trends in the North Atlantic Oscillation: regional temperatures and precipitation. Oceanogr Lit Rev 2(43):116Google Scholar
- Hurrell J, National Center for Atmospheric Research Staff (Eds). Last modified 16 Aug 2016. The climate data guide: Hurrell North Atlantic Oscillation (NAO) Index (station-based). Retrieved from https://climatedataguide.ucar.edu/climate-data/hurrell-north-atlantic-oscillation-nao-index-station-based
- Hurrell JW, Van Loon H (1997) Decadal variations in climate associated with the North Atlantic Oscillation. In Climatic Change at High Elevation Sites (pp. 69–94). Springer NetherlandsGoogle Scholar
- Kahya E (2011) The impacts of NAO on the hydrology of the Eastern Mediterranean. Hydrological, Socioeconomic and Ecological Impacts of the North Atlantic Oscillation in the Mediterranean Region (pp 57–71). Springer NetherlandsGoogle Scholar
- Li JZ, Wang YX, Li SF, Hu R (2015) A nonstationary standardized precipitation index incorporating climate indices as covariates. J Geophys Res Atmos 120(12):082–012Google Scholar
- McKee TB, Doesken NJ, Kleist J (1995) Drought monitoring with multiple time scales. Proceeding of the 9th Conference on Applied Climatology. American Meteorological Society: BostonGoogle Scholar
- Smith DM, Scaife AA, Eade R, Knight JR (2014) Seasonal to decadal prediction of the winter North Atlantic Oscillation: emerging capability and future prospects. Q J R Meteorol SocGoogle Scholar
- Tsanis I, Tapoglou E (2017) North Atlantic Oscillation and Precipitation correlation in Europe under climate change. EGU General Assembly Conference Abstracts 2017 19:17431 (http://adsabs.harvard.edu/abs/2017EGUGA..1917431T , http://meetingorganizer.copernicus.org/EGU2017/EGU2017-17431.pdf)
- Vergni L, Todisco F, Di Lena B, Mannocchi F (2016) Effect of the North Atlantic Oscillation on winter daily rainfall and runoff in the Abruzzo region (Central Italy). Stoch Env Res Risk A:1–15Google Scholar
- Vrochidou A-EK, Grillakis MG, Tsanis IK (2013) Drought assessment based on multi-model precipitation projections for the island of Crete. J Earth Sci Clim Chang 4(158)Google Scholar
- Walker GT (1924) Correlation in seasonal variations of weather, IX. A further study of world weather. Mem India Meteorol Dep 24(9):275–333Google Scholar
- Walker GT, Bliss EW (1932) World weather V. Mem R Meteorol Soc 4(36):53–84Google Scholar