Figures & data
Figure 1. (a) Total evaporation over Turkey for 1975–2004 (May–October). (b) Location of Lake Keban.
Table 1. Statistical information for the monthly data observed over 30 years (runoff data are available for the period 1973–1997). (Mean, Max, SD, Cs and r1 denote mean, maximum, standard deviation, skewness and lag-1 autocorrelation, respectively.) Also shown are the cross-correlations between the evaporation and the relevant hydro-meteorological data.
Figure 2. Monthly values of the hydro-meteorological variables for 1973–2002.
Figure 3. CWS (left) and GWS (right) of (a) monthly total evaporation, and (b) monthly average flow. White dashed lines indicate the 95% confidence limit for red noise (lag-1 coefficient is 0.82).
Figure 4. CWS (left) and GWS (right) of (a) monthly total precipitation, and (b) monthly averaged wind speed. White dashed lines indicate the 95% confidence limit for red noise (lag-1 coefficients are 0.31 and 0.65, respectively).
Figure 5. CWS (left) and GWS (right) of (a) monthly total relative humidity, and (b) monthly averaged temperature. White dashed lines indicate the 95% confidence limit for red noise (lag-1 coefficients are 0.75 and 0.84, respectively).
Figure 6. Cross-wavelet analysis – evaporation: (a) relative humidity cross-wavelet spectrum and cross-global wavelet spectrum, and (b) river flow cross-wavelet spectrum and cross-global wavelet spectrum.
Table 2. Correlations between the D components of the hydro-meteorological data and the evaporation series. Bold denotes the highest correlations.
Figure 7. Wavelet components for 64- and 128-month scale levels. The dotted, dashed and solid traces refer to (a) flow, precipitation and evaporation, respectively, and (b) wind speed, relative humidity and evaporation, respectively.
Figure 8. The SOI and NAO indexes for the 1973–2002 period.
Table 3. Correlation between the D components of the hydro-meteorological data and the original SOI or NAO index (anomaly) 1973–2002.