QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 16 Dec 2019 Station : La Coruna Latitude: 43 22.0N Country : Spain Longitude: 008 24.0W JASL # : 830A Time Meridian: GMT GLOSS # : 243 Originator #: 005 NODC #: 74003801 Contributor : Instituto Espanol de Oceanografia C/ Corazon de Maria, No. 8 - 1 28002 Madrid SPAIN Originator : same Original Data: analog and digital Instrmnt Type: A.OTT, float and stilling well Digitzd Intvl: analog: one hour; digital: 5 min Present Data : Hourly, daily, and monthly values obtained by: Hourly : spot hourly 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 : 28 Feb 1943 - 31 Dec 2017 Gaps > 1 mon : 01 Jan 1954 - 01 Feb 1954;21 Apr 1963 - 30 Jun 1963 19 Jan 1982 - 22 Feb 1982;11 Apr 1991 - 21 May 1991 11 Nov 1994 - 11 Jan 1995;28 Feb 1995 - 30 Mar 1995 04 Mar 2004 - 20 Apr 2004;30 Sep 2004 - 30 Nov 2004 Time Refernce: GMT (00-23 hours) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1943-2017 Refernce Levl: All data are referred to the Tide Gauge Zero (TGZ) TGZ = 5.750m below TGBM (NAPG-467) TGZ = 7.410m below Aux1 (NP-615) TGZ = 5.988m below Aux2 (SSM) TGZ = 5.916m below Aux3 (NGK-793) TGZ = 5.830m below CP (control point) Benchmarks (BM): Grid BM Ref. Description TGBM NAPG-467 On a cliff of Marina Dock Pier Aux1 NP-615 Located in the tabacco Bldg Aux2 SSM Aux3 NGK-793 CP well mouth Comment : The gauge is located in the harbour Coruna, on the cliff of the pier of Marina Dock The data were screened and quality controlled using IEO procedure. The tidal analysis does not resolve all the harmonic constituents thus the residuals are noisy. Only the most extreme fluctuations in the residuals are noted below. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1943 80 215-228 none 82,timing off < 1 hr throughout 1944 100 none none Jan-Jul off < 1 hr 1945 100 none none none 1946 100 none none none 1947 100 none none none 1948 100 none none none 1949 100 none none none 1950 100 none none none 1951 100 none none none 1952 100 none none none 1953 100 none none none 1954 91 1-32 none none 1955 100 none none none 1956 100 none none none 1957 100 none none none 1958 100 none none none 1959 100 none none none 1960 100 none none none 1961 100 none none none 1962 100 none none none 1963 81 111-181 none Feb-Mar,Jul-Nov < 1 hr off 1964 100 none none Feb-Aug < 1 hr off 1965 100 none none none 1966 100 none none none 1967 100 none none none 1968 99 185-189 none none 1969 99 274-276 none none 1970 99 244-246 none none 1971 100 none none none 1972 100 none none none 1973 100 none none Oct-Dec < 1 hr off 1974 100 none none Jan,Jun-Aug < 1hr 1975 100 none none 160-167 1976 100 none none none 1977 100 none none none 1978 100 none none none 1979 100 none none none 1980 99 138-139 none none 1981 100 none none none 1982 91 19-53 none none 1983 100 none none none 1984 100 none none none 1985 100 none none none 1986 100 none none none 1987 100 none none none 1988 98 258-264 none none 1989 95 37-44,295-306 none 66-70 1990 99 200-204 none none 1991 89 101-141 none none 1992 96 78-81,142-153 none none 1993 99 77-82 none none 1994 84 94-96,104-111, none none 315-365 1995 85 1-11,24-25,59-89, none 42-49,100-108 161-172,178-181 1996 94 17-23,223-233, none none 236-244 1997 97 120-123 none none 1998 99 158-160 none none 1999 91 89-101,146-167 none none 2000 95 178-197 none none 2001 88 21-30,165-169, none none 274-304 2002 82 30-49,164-181,209- none Mar-May,Sep-Dec 231,290-295 some segments with timing off < 1 hr 2003 98 24-31 none well blockage Jan? segments timing off < 1 hr 2004 65 64-111,120-121,138- none segments timing 152,274-335 off < 1 hr 2005 90 31-41,60-74,99-101, (00)001-(23)001 none 123-130,150-153 2006 100 none none none 2007 98 53-58,80-81,162-163 none none 2008 97 142-151,224-226, (09)021-(08)022 none 364-365 (09)099-(08)100 2009 95 7-8,26-27,89-90,103- none none 106,110-111,117-118, 124-133,364-365 2010 98 1-4,50-53,171-172 (15)096-(11)097 none (13)108-(09)109 (12)117-(10)118 2011 100 none none none 2012 100 none none none 2013 100 none none none 2014 95 156-160,264-273, none none 288-294 2015 100 none none none 2016 100 none none 336-352 2017 100 none (00)304-(23)304 274-334 (09)313-(23)313 (11)326-(23)326