TY JOUR TI Seasonal variability of tides in the Arctic Seas KW Tides KW seasonal variability KW spring tide KW tidal range KW White Sea KW Arctic Ocean KW tide gauge KW sea level KW harmonic analysis KW Siberian continental shell JO Russian Journal of Earth Sciences AU Kulikov, M.E. AU Medvedev, I.P. AU Kondrin, A.T. PY 2018 IS 18 PB Geophysical Center of the Russian Academy of Sciences