All Figures

$\begin{figure} \par {\includegraphics[width=8.3cm,clip]{4060fig1.eps} } \end{figure}$ Figure 1: Scatter plots of the daily ( top panels), monthly-mean ( middle panels), and smoothed-monthly ( bottom panels) hemispheric SN for the northern ( left panels) and the southern ( right panels) hemisphere. Calculated hemispheric SN from KSO/SPO, R_n and R_s, are plotted against the international hemispheric SN provided by the SIDC, $R_{n {\rm , SIDC}}$ and $R_{s {\rm , SIDC}}$ , for the period 1992-2004. Crosses in the middle panel indicate months with a data coverage < 18 days.
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In the text

$\begin{figure} \par {\includegraphics[width=8.3cm,clip]{4060fig2.eps} } \end{figure}$ Figure 2: Monthly hemispheric SN from SIDC (dotted line) and KSO/SPO data (crosses) for the overlapping time span 1992-2004. Northern/southern SN are given in the top/bottom panel.
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In the text

$\begin{figure} \par {\includegraphics[width=8.2cm,clip]{4060fig3.eps} } \end{figure}$ Figure 3: Top panel: continuously missing days within the data set of sunspot drawings from KSO and SPO during the time span 1945-2004; the clipping shows in detail the two longest gaps of 88 and 18 days for the years 1966-1969. The gray shaded area indicates the zoomed part shown in the bottom panel.
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In the text

$\begin{figure} \par {\includegraphics[width=14.6cm,clip]{4060fig4.eps} } \end{figure}$ Figure 4: Top panels: histogram of the deviations between daily hemispheric SN derived from KSO and SPO sunspot drawings available on common days. For details the histogram is cut at a frequency number of 400. The inset shows the full range of the histogram. Bottom panels: temporal evolution of the differences between daily KSO and SPO SN during the time span 1952-2004. Left panels: northern SN. Right panels: southern SN. The grey shaded area between $\pm$ 22 includes $\sim$ 98% of the calculated differences. Dashed-dotted lines indicate the solar maximum of a cycle.
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In the text

$\begin{figure} \par {\includegraphics[width=17cm,clip]{4060fig5.eps} } \end{figure}$ Figure 5: Top panel: monthly relative sunspot numbers for the entire disk (from SIDC); middle panel: derived monthly northern relative sunspot numbers; bottom panel: derived monthly southern relative sunspot numbers.
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In the text

$\begin{figure} \par {\includegraphics[width=17cm,clip]{4060fig6.eps} } \end{figure}$ Figure 6: Smoothed monthly relative sunspot numbers for the entire disk (from SIDC, top panel) and excesses of one hemisphere over the other ( bottom panel) based on smoothed-monthly hemispheric SN. Excess of the southern hemisphere is gray shaded (online edition: yellow) and dark shaded (online edition: blue). The time span covers the years from 1945 until 2004 which corresponds to solar cycles 18-23. See the electronic edition of the Journal for a color version of this figure.
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In the text

$\begin{figure} \par {\includegraphics[width=7.5cm,clip]{4060fig7.eps} } \end{figure}$ Figure 7: Activity asymmetry (Eq. (2)) plotted for each solar cycle 18-23 on the basis of monthly hemispheric SN. The results from a Student's t-test with a significance level of 99% are marked (cf. Eq. (3)) as crosses/circles for a significant excess of the northern/southern hemisphere. Dashed-dotted lines indicate the solar cycle maximum.
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In the text

$\begin{figure} \par {\includegraphics[width=8.3cm,clip]{4060fig2.eps} } \end{figure}$	Figure 2: Monthly hemispheric SN from SIDC (dotted line) and KSO/SPO data (crosses) for the overlapping time span 1992-2004. Northern/southern SN are given in the top/bottom panel.
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$\begin{figure} \par {\includegraphics[width=8.2cm,clip]{4060fig3.eps} } \end{figure}$	Figure 3: Top panel: continuously missing days within the data set of sunspot drawings from KSO and SPO during the time span 1945-2004; the clipping shows in detail the two longest gaps of 88 and 18 days for the years 1966-1969. The gray shaded area indicates the zoomed part shown in the bottom panel.
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$\begin{figure} \par {\includegraphics[width=17cm,clip]{4060fig5.eps} } \end{figure}$	Figure 5: Top panel: monthly relative sunspot numbers for the entire disk (from SIDC); middle panel: derived monthly northern relative sunspot numbers; bottom panel: derived monthly southern relative sunspot numbers.
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$\begin{figure} \par {\includegraphics[width=7.5cm,clip]{4060fig7.eps} } \end{figure}$	Figure 7: Activity asymmetry (Eq. (2)) plotted for each solar cycle 18-23 on the basis of monthly hemispheric SN. The results from a Student's t-test with a significance level of 99% are marked (cf. Eq. (3)) as crosses/circles for a significant excess of the northern/southern hemisphere. Dashed-dotted lines indicate the solar cycle maximum.
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