Lowfrequency change of the Black Sea river discharges associated with the coupled ocean atmosphere variability in the North Atlantic Ocean  <B>Lowfrequency change of the Black Sea river discharges associated with the coupled ocean atmosphere variability in the North Atlantic Ocean</B><P>A. Polonsky, E. Voskresenskaya, D. Kadeev and A. Kolinko</B><I><P> Marine Hydrophysical Institute of Ukrainian Academy of Sciences, Sevastopol, Crimea, Ukraine</I><P> Abstract<BR> Interannual and interdecadal variability of discharges of four Black Sea rivers in 1921 to 1992 is examined. It is shown that a typical magnitude of lowfrequency fluctuations of these discharges is the same as a typical amplitude of the seasonal cycle.They are mainly due to natural changes in the coupled oceanatmosphere system. Predictability of the interannual and interdecadal fluctuations of the river discharges associated with sea surface temperature and atmosphere circulation anomalies in the North/Tropical Atlantic is discussed.<P>