Assessment of the nuclear power plant "Hanhikivi-1" influence on the local hydrological conditions in the Bothnian Bay, Baltic Sea
Anton Dvornikov1, Stanislav Martyanov1, Vladimir Ryabchenko1, Tatjana Eremina2, Alexey Isaev1,2, and Dmitry Sein31The St.-Petersburg Branch of the P. P. Shirshov Institute of Oceanology, Russian Academy of Sciences, 1 Liniya V.O., 30, 199053, St.-Petersburg, Russia 2Russian State Hydrometeorological University, Malookhtinsky prospect, 98, 195196, St.-Petersburg, Russia 3Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Postfach 120161, Am Handelshafen 12, 27570 Bremerhaven, Germany
Received: 07 Dec 2016 – Accepted for review: 09 Dec 2016 – Discussion started: 09 Dec 2016
Abstract. The results of the study aimed to assess the influence of future nuclear power plant "Hanhikivi-1" upon the local hydrological conditions in the Bothnian Bay in the Baltic Sea are presented. A number of experiments with different numerical models were also carried out in order to estimate the extreme hydro-meteorological conditions in the area of the construction. The numerical experiments were fulfilled both with analytically-specified external forcing and with real external forcing for two years: a cold year (2010) and a warm year (2014). The study has shown that the extreme values of sea level, water temperature, the characteristics of wind waves and sea ice in the vicinity of the future nuclear power plant can be significant and sometimes catastrophic. Permanent release of heat into the marine environment from operating nuclear power plant will lead to a strong increase in temperature and the disappearance of ice cover around 2 km vicinity of the station. These effects should be taken into account when assessing local climate changes in the future.
Dvornikov, A., Martyanov, S., Ryabchenko, V., Eremina, T., Isaev, A., and Sein, D.: Assessment of the nuclear power plant "Hanhikivi-1" influence on the local hydrological conditions in the Bothnian Bay, Baltic Sea, Earth Syst. Dynam. Discuss., doi:10.5194/esd-2016-69, in review, 2016.