QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 17 Sep 2020 Station : Fernandina Beach,FL Latitude: 30 40.3N Country : USA Longitude: 081 28.0W JASL # : 240A Time Meridian: 075W (GMT - 5 hr) GLOSS # : none Originator #:8720030 NODC #: 73080101 Contributor : National Ocean Service (NOS) National Ocean. and Atmos. Administration (NOAA) N/OES22 SSMC4, STATION 7109 1305 East West Highway Silver Spring, MD. 20910-3233 Originator : US Coastal Geodetic Survey (1897-1972);NOS (1973+) Original Data: analog (standard), digital (ADR, NG, MWWL) Instrmnt Type: 1) Standard float/well system 2) Analog-to-Digital Recorder (ADR) (1985-1997) 3) Aquatrak acoustic NOAA Next Generation Water Level Measuring System (NG) (1998-) 4) Design Analysis WaterLOG Microwave sensor (MWWL) radar gauge (2017-) Digitzd Intvl: 6 minute NG and MWWL sampling are three-minute averages Present Data : Hourly, daily, and monthly values obtained by: Hourly : discrete sampling on the hour Daily : 119-point convolution filter (Bloomfield, 1976) centered on noon applied to the hourly data with respective periods of the 95, 50, and 5% amplitude points at 124.0, 60.2, and 40.2 hours Monthly: Simple average of all daily values; calculated if 7 or fewer days are missing Span of data : 08 May 1897 - 31 Dec 2019 Gaps > 1 mon : 01 Jul 1924 - 31 Dec 1984 12 Jul 1995 - 29 Feb 1996;06 Aug 1996 - 06 Feb 1997 05 Dec 2000 - 09 Jan 2001;01 Feb 2006 - 31 Jan 2007 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1897-2019 Refernce Levl: All heights have been referred to the station tide staff zero which is linked to fixed bench marks. While standard mechanical or ADR instrument was the primary gauge, leveling calibration factors were applied monthly based on tide staff comparisons. Comment : The residual series are very noisy which are probably due to shallow water tides that are not resolved by the harmonic analysis; thus, only questionable fluctuations greater than 40 cm are noted below that may represent timing inaccuracies. Also the daily plot shows noise due to a great amount of energy with periods from 3 to 15 days. The monthly plot reveals a consistent annual and semi-annual signal. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1897 65 none none 227 1898 100 none none none 1899 100 none none none 1900 100 none none none 1901 100 none none 237,271-273,304 1902 100 none none 98-365 1903 100 none none 1-354 1904 100 none none 4-341 1905 100 none none 1-365 1906 100 none none 10-354 1907 100 none none 91-93,203 1908 100 none none 230,268-270 1909 100 none none 89,96,288-292,309, 315-319 1910 100 none none none 1911 100 none none none 1912 100 none none 53,171 1913 100 none none 111-112,160-161, 287-289 1914 100 none none 350-352 1915 100 none none 60 1916 100 none none none 1917 100 none none 303 1918 100 none none 70,202-204,293 1919 100 none none 89-99,113,357 1920 100 none none none 1921 100 none none 299 1922 100 none none none 1923 100 none none 178 1924 50 183-366 none 95-108 1925 0 1-365 none none 1926 0 1-365 none none 1927 0 1-365 none none 1928 0 1-366 none none 1929 0 1-365 none none 1930 0 1-365 none none 1931 0 1-365 none none 1932 0 1-366 none none 1933 0 1-365 none none 1934 0 1-365 none none 1935 0 1-365 none none 1936 0 1-366 none none 1937 0 1-365 none none 1938 0 1-365 none none 1939 0 1-365 none none 1940 0 1-366 none none 1941 0 1-365 none none 1942 0 1-365 none none 1943 0 1-365 none none 1944 0 1-366 none none 1945 0 1-365 none none 1946 0 1-365 none none 1947 0 1-365 none none 1948 0 1-366 none none 1949 0 1-365 none none 1950 0 1-365 none none 1951 0 1-365 none none 1952 0 1-366 none none 1953 0 1-365 none none 1954 0 1-365 none none 1955 0 1-365 none none 1956 0 1-366 none none 1957 0 1-365 none none 1958 0 1-365 none none 1959 0 1-365 none none 1960 0 1-366 none none 1961 0 1-365 none none 1962 0 1-365 none none 1963 0 1-365 none none 1964 0 1-366 none none 1965 0 1-365 none none 1966 0 1-365 none none 1967 0 1-365 none none 1968 0 1-366 none none 1969 0 1-365 none none 1970 0 1-365 none none 1971 0 1-365 none none 1972 0 1-366 none none 1973 0 1-365 none none 1974 0 1-365 none none 1975 0 1-365 none none 1976 0 1-366 none none 1977 0 1-365 none none 1978 0 1-365 none none 1979 0 1-365 none none 1980 0 1-366 none none 1981 0 1-365 none none 1982 0 1-365 none none 1983 0 1-365 none none 1984 0 1-366 none none 1985 99 none none 4,15,93,124-125,215- 216,257-262,269-270, 283,302-303,363-364 1986 100 none none 8,81,261,318-319,335 1987 100 none none 1,4-6,54,242-243, 278,280-281,307,310, 1988 97 111-121 none 70-71,188,347-348, 353-354 1989 95 34-53 none 4,21-23,67-70,271, 299-303,357-360 1990 100 none none 7-11,55,67,86-92, 108,283-284,334 1991 100 none none 156-159,302-303,315, 313 1992 100 none (23)010-(15)011 237-238,241-243 1993 100 none (08)343-(07)344 none 1994 84 41-45,50-51,56-81, (17)055-(06)056 97-99,111-120,285- 185-214 286,316-317 1995 49 3-33,193-365 none none 1996 43 1-61,219-366 none 71-73,194 1997 82 1-37,42-44,47-48, none 156,349-350 58-84 1998 100 none none 34,48 1999 100 none none 121-122 2000 91 299-305,340-366 (00)028-(17)028 320-321 (06)038-(17)038 2001 98 1-9 none 258-259 2002 95 327-346 (17)094-(03)095 none (11)118-(23)118 2003 90 14-39,281-294 none none 2004 99 223-224 (01)027-(18)027 none (22)358-(11)359 2005 100 none none none 2006 9 32-365 none none 2007 89 38-42,46-51 none none 2008 100 none (03)003-(13)003 none (22)137-(05)138 (03)003-(13)003 (22)137-(05)138 2009 100 none none none 2010 100 none none none 2011 98 244-250 none none 2012 100 none none none 2013 100 none none 33-35 2014 100 none none none 2015 100 none none none 2016 100 none none none 2017 100 none none none 2018 100 none none none 2019 100 none none none