Time series of quasi-MSL at Brest derived from MHW information recorded since the beginning of the 18th century. Column "Year". Column "MHWr", Annual mean of residual High Water, in cm (Obs. minus Pred.), centered at 0 for the period 1711–1716. Column "Days", Number of observed days in the year. Reference: Pouvreau, N. (2008). Trois cents ans de mesures marégraphiques en France: outils, méthodes et tendances des composantes du niveau de la mer au port de Brest. PhD thesis. University of La Rochelle. Also available on-line at: http://tel.archives-ouvertes.fr/docs/00/35/36/60/PDF/ThesePOUVREAU.pdf Data sources: 1711-1716 Archives of the Observatoire de Paris(quoted D2.42); 1757-1778 Archives of Academie des Sciences, Paris ("pochette session 1781/01/31"); 1778-1792 Archives of the Observatoire de Paris(quoted D2.42); 1807-1835 Savary, F., Bouvard, A., Mathieu, C., Daussy, P. & Largeteau, C.L. (1843). Observations des marées faites à la mâture et au bassin dans le port de Brest 1807-1835. Publication du Bureau des Longitudes; 1846-2021 Hourly sea-level observations are available https://dx.doi.org/10.17183/REFMAR#3. --------------------- YEAR MHWr Days --------------------- 1711 5,046 198 1712 6,666 340 1714 -3,024 315 1715 -0,434 363 1716 -8,254 272 1758 4,046 361 1759 -1,804 363 1760 1,496 352 1761 0,546 359 1762 1,716 333 1763 7,596 322 1764 0,716 366 1765 1,576 365 1766 0,726 364 1767 2,636 365 1768 3,486 365 1769 0,106 365 1770 -5,524 365 1771 -1,724 365 1772 6,206 354 1773 -1,184 365 1774 0,006 364 1775 -2,054 365 1776 -0,984 366 1777 0,906 360 1778 -1,024 334 1779 -3,924 364 1780 -2,234 366 1781 -1,044 362 1782 2,466 365 1783 5,446 363 1784 1,416 366 1785 1,456 364 1786 3,246 365 1787 3,256 364 1788 1,226 365 1789 3,086 360 1790 0,126 359 1807 12,896 353 1808 3,256 353 1809 11,166 351 1810 11,296 351 1811 14,076 352 1812 13,086 363 1813 7,906 358 1814 10,196 362 1815 9,626 364 1816 13,576 363 1817 11,016 364 1818 13,486 365 1819 11,036 364 1820 8,246 363 1821 13,886 364 1822 10,236 361 1823 9,146 360 1824 8,616 361 1825 5,056 365 1826 4,626 363 1827 3,506 364 1828 10,766 366 1829 7,526 365 1830 5,466 360 1831 10,846 358 1832 1,786 363 1833 5,636 361 1834 3,586 362 1835 4,486 365 1846 11,076 362 1847 8,636 365 1848 12,686 366 1849 11,036 365 1850 7,516 365 1851 6,686 365 1852 14,356 366 1853 12,826 365 1854 4,906 365 1855 9,236 365 1856 13,866 366 1860 14,526 305 1861 10,506 353 1862 10,706 348 1863 6,506 243 1864 10,436 306 1865 11,906 365 1866 12,606 365 1867 9,706 344 1868 8,216 349 1869 7,966 365 1870 5,636 365 1871 7,736 365 1872 14,396 357 1873 10,466 365 1874 5,656 354 1875 10,046 365 1876 14,606 366 1877 15,076 334 1878 14,106 333 1879 14,496 365 1880 11,786 366 1881 14,476 365 1882 13,446 365 1883 12,716 365 1884 10,806 366 1885 13,026 365 1886 15,566 365 1887 8,326 365 1888 10,326 366 1889 6,086 365 1890 4,946 365 1891 6,906 338 1892 8,606 366 1893 8,656 365 1894 7,516 365 1895 11,806 365 1896 4,816 366 1897 9,566 364 1898 6,346 365 1899 9,916 365 1900 9,246 365 1901 7,456 365 1902 7,546 365 1903 12,976 365 1904 9,506 366 1905 8,016 365 1906 6,036 365 1907 7,146 335 1908 7,386 366 1909 9,386 365 1910 14,276 352 1911 12,116 359 1912 18,496 366 1913 20,466 365 1914 20,676 365 1915 17,286 365 1916 19,626 366 1917 10,916 333 1918 13,486 365 1919 9,976 365 1920 13,836 363 1921 8,036 365 1922 9,996 359 1923 8,206 356 1924 15,216 366 1925 13,416 365 1926 14,746 365 1927 16,376 365 1928 16,016 366 1929 9,206 365 1930 17,876 365 1931 15,136 365 1932 15,636 366 1933 14,316 365 1934 11,716 365 1935 13,686 365 1936 19,456 366 1937 18,196 304 1938 11,156 361 1939 16,576 365 1940 17,456 358 1941 18,636 365 1942 18,376 365 1943 19,606 365 1953 12,986 365 1954 15,126 365 1955 18,026 365 1956 10,246 366 1957 14,256 365 1958 17,026 365 1959 17,206 365 1960 22,516 366 1961 20,976 365 1962 16,596 365 1963 19,146 365 1964 13,066 366 1965 20,896 365 1966 26,046 365 1967 20,316 365 1968 24,196 366 1969 22,736 365 1970 17,716 365 1971 16,216 365 1972 18,656 366 1973 14,206 365 1974 18,376 365 1975 12,926 365 1976 16,406 366 1977 20,866 365 1978 18,716 365 1979 19,176 365 1980 17,486 317 1981 20,056 357 1982 19,436 325 1983 21,596 365 1984 20,806 366 1985 22,576 365 1986 18,396 365 1987 21,876 365 1988 22,876 366 1989 24,346 365 1990 22,276 365 1991 20,606 365 1992 22,766 366 1993 24,406 356 1994 27,236 365 1995 26,366 365 1996 25,236 366 1997 26,586 365 1998 25,316 365 1999 25,006 365 2000 28,076 361 2001 26,556 365 2002 28,506 365 2003 27,576 365 2004 26,216 366 2005 21,846 365 2006 26,176 365 2007 24,786 365 2008 27,166 366 2009 28,246 362 2010 29,856 365 2011 26,146 365 2012 26,296 362 2013 28,536 351 2014 34,346 364 2015 26,436 365 2016 30,006 358 2017 27,426 364 2018 31,966 364 2019 33,426 353 2020 35,456 362 2021 33,296 356