caa a22 4500 445814659 CHVBK 20180317145222.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10040-011-0755-9 doi (NATIONALLICENCE)springer-10.1007/s10040-011-0755-9 Identifying non-stationary groundwater level response to North Atlantic ocean-atmosphere teleconnection patterns using wavelet coherence [Elektronische Daten] [Ian Holman, Monica Rivas-Casado, John Bloomfield, Jason Gurdak] Analyse de la variabilité de la réponse piézométrique aux variations de structures de téleconnections de l'Atlantique Nord à l'aide de la méthode des ondelettes The first comprehensive use of wavelet methods to identify non-stationary time-frequency relations between North Atlantic ocean-atmosphere teleconnection patterns and groundwater levels is described. Long-term hydrogeological time series from three boreholes within different aquifers across the UK are analysed to identify statistically significant wavelet coherence between the North Atlantic Oscillation, East Atlantic pattern, and the Scandinavia pattern and monthly groundwater-level time series. Wavelet coherence measures the cross-correlation of two time series as a function of frequency, and can be interpreted as a correlation coefficient value. Results not only indicate that there are common statistically significant periods of multiannual-to-decadal wavelet coherence between the three teleconnection indices and groundwater levels in each of the boreholes, but they also show that there are periods when groundwater levels at individual boreholes show distinctly different patterns of significant wavelet coherence with respect to the teleconnection indices. The analyses presented demonstrate the value of wavelet methods in identifying the synchronization of groundwater-level dynamics by non-stationary climate variability on time scales that range from interannual to decadal or longer. Springer-Verlag, 2011 Climate change nationallicence Groundwater statistics nationallicence Wavelet analysis nationallicence North Atlantic Oscillation (NAO) nationallicence United Kingdom (UK) nationallicence Holman Ian Department of Environmental Science and Technology, Cranfield University, Bedford MK43 0AL, Cranfield, UK aut Rivas-Casado Monica Department of Environmental Science and Technology, Cranfield University, Bedford MK43 0AL, Cranfield, UK aut Bloomfield John British Geological Survey, Maclean Building, Crowmarsh Gifford, OX10 8BB, Wallingford, Oxfordshire, UK aut Gurdak Jason Department of Geosciences, San Francisco State University, 1600 Holloway Ave., 94132, San Francisco, CA, USA aut Hydrogeology Journal Springer-Verlag 19/6(2011-09-01), 1269-1278 1431-2174 19:6<1269 2011 19 10040 https://doi.org/10.1007/s10040-011-0755-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-011-0755-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Holman Ian Department of Environmental Science and Technology, Cranfield University, Bedford MK43 0AL, Cranfield, UK aut NATIONALLICENCE 700 1- Rivas-Casado Monica Department of Environmental Science and Technology, Cranfield University, Bedford MK43 0AL, Cranfield, UK aut NATIONALLICENCE 700 1- Bloomfield John British Geological Survey, Maclean Building, Crowmarsh Gifford, OX10 8BB, Wallingford, Oxfordshire, UK aut NATIONALLICENCE 700 1- Gurdak Jason Department of Geosciences, San Francisco State University, 1600 Holloway Ave., 94132, San Francisco, CA, USA aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/6(2011-09-01), 1269-1278 1431-2174 19:6<1269 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer