“…Tide gauge operation, and the processing, distribution and archiving of the data are the responsibility of a single national agency per country, for instance the Swedish Meteorological and Hydrographical Institute (SMHI), the Danish Meteorological Institute (DMI), the Estonian Meteorological and Hydrographical Institute (EMHI), the Finnish Barbosa et al (2008) Baltic Sea basin wide Omstedt and Nyberg (1991), Heyen et al (1996), Carlsson (1997Carlsson ( , 1998aCarlsson ( , 1998b, Liebsch (1997), Janssen (2002), Baerens et al (2003), Meier et al (2004), Novotny et al (2006), Hünicke and Zorita (2006, 2007, 2008, Barbosa (2008), , Ekman (2009) and references therein; Hünicke (2010), Donner et al (2012) Southern Baltic Sea coast Richter et al (2007Richter et al ( , 2011 Lithuania Dailidienė et al (2004Dailidienė et al ( , 2005Dailidienė et al ( , 2006Dailidienė et al ( , 2011Dailidienė et al ( , 2012, Jarmalavicius et al (2007) Russia Bogdanov et al (2000), Averkiev and Klevannyy (2010), Navrotskaya and Chubarenko (2012) Estonia Suursaar et al (2002Suursaar et al ( , 2006aSuursaar et al ( , 2010, Kullas (2006, 2009b), Suursaar and Sooäär (2007), Suursaar (2010), Tõnisson et al (2011) Poland Zawadzka (2005, 2008), Richter et al (2007…”