Changes in Winter-Temperature Synchrony Mirror Changes in North Atlantic Oscillation (IMAGE)
Caption
Wavelet mean field magnitudes for winter temperatures from 13 long-maintained UK weather stations (a) resembled their counterparts for the 11 aphid sampling locations; the comparable part of the plot is indicated by black lines. A normalized wavelet transform of Hurrell's winter NAO index (b) showed similar features to a on long timescales (4-27 years). The real part of the 10-year-timescale component of this NAO transform is plotted in c. The envelope enclosing the fluctuations in c is the height of b at 10-year timescale. Times for which long-timescale NAO oscillations were strong (red) or weak (blue) are also marked in c.
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KU News Service | University of Kansas
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