QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 01 Oct 2020 Station : New York,NY Latitude: 40 42.0N Country : USA Longitude: 074 00.9W JASL # : 745A Time Meridian: 075W (GMT - 5 hr) GLOSS # : none Originator #:8518750 NODC #: 74070401 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 (1958-1972);NOS (1973+) Original Data: analog (standard); digital (ADR and NGWLMS) Instrmnt Type: 1) standard mechanical, float/wire (1920-1967); 2) analog-to-digital (ADR) recorder, float/wire (1967-1994); 3) Aquatrak acoustic sensor/protective well, NOAA Next Generation Water Level Measuring System (NGWLMS) (1991-) Digitzd Intvl: hourly (standard); six-minute (adr and NGWLMS) NGWLMS sampling is three-minute average Present Data : Hourly, daily, and monthly values obtained by: Hourly : The original digitizing interval was hourly (standard); spot sampling on the hour (adr/NGWLMS) 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 : 01 Jun 1920 - 31 Dec 2019 Gaps > 1 mon : 01 Dec 1921 - 20 Nov 1926;13 Jun 1927 - 09 Aug 1927 22 Jan 1958 - 01 May 1958; 01 Jun 1973 - 25 Jul 1973;29 Apr 1975 - 04 Jun 1975 29 Nov 1976 - 06 May 1977;22 Jun 1985 - 23 Jul 1985 22 Sep 1985 - 04 Nov 1985;10 Aug 1987 - 31 Dec 1987 12 Sep 1988 - 22 Nov 1988;16 Feb 1989 - 12 Apr 1989 13 Jun 1990 - 20 Sep 1990;17 Jan 1991 - 14 Mar 1991 08 Jul 1994 - 20 Aug 1994;17 Dec 1994 - 20 Feb 1995 01 Apr 1995 - 06 Jun 1995;22 Aug 1996 - 04 Oct 1996 14 Feb 1997 - 19 Apr 1997;23 Aug 1997 - 26 Sep 1997 27 Oct 1997 - 09 Dec 1997;01 Jan 2001 - 30 Apr 2001 01 Feb 2004 - 31 May 2004 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 1920-2019 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 daily and monthly means reveal no apparent reference level changes or trends. Residuals show various high-frequency features associated with coastal winds. A timing offset correction of minus one hour was applied from 09 Feb 1942 - 30 Sep 1945. This site is called "The Battery, New York Harbor, NY". CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1920 58 none none none 1921 92 335-365 none none 1922 0 1-365 none none 1923 0 1-365 none none 1924 0 1-366 none none 1925 0 1-365 none none 1926 11 1-335 none none 1927 84 164-221 none none 1928 100 none none none 1929 100 none none none 1930 100 none none none 1931 100 none none none 1932 100 none none none 1933 100 none none none 1934 100 none none none 1935 100 none none none 1936 100 none none none 1937 100 none none none 1938 100 none none 264-265 1939 100 none none none 1940 100 none none none 1941 100 none none none 1942 100 none none none 1943 100 none none none 1944 100 none none none 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 100 none none 243 1955 100 none none none 1956 100 none none none 1957 100 none none none 1958 73 22-121 none none 1959 100 none none none 1960 100 none none none 1961 100 none none none 1962 100 none none 230-232 1963 100 none none none 1964 100 none none none 1965 100 none none none 1966 100 none none none 1967 100 none none none 1968 100 none none none 1969 100 none none none 1970 100 none none none 1971 100 none none 229-230,241 1972 100 none (21)271-(20)272 none 1973 85 152-206 none none 1974 84 49-56,60-75,93-94, (05)041-(00)042 133 240-247,323-326, (18)112-(15)113 333-340,348-365 (15)120-(11)121 (20)128-(14)129 (18)328-(12)329 (01)330-(12)330 1975 82 1,109-110,115-117, none none 119-155,213-219, 235-237 1976 84 170-189,195-198,204- none none 213,220-223,229-232, 334-366 1977 65 1-126,322-326 none none 1978 100 none none none 1979 91 50-51,211-214,271- none none 293,299-305 1980 98 305-308,336-340 none none 1981 95 265-283 none none 1982 100 none none none 1983 100 none none none 1984 98 130-131,210-216 none none 1985 74 159-161,173-204,210- none none 216,222-232,238-241, 265-308 1986 100 none none none 1987 57 2-5,192-198,204-210, none none 222-365 1988 63 164-167,173-180,186- none none 198,235-250,256-327, 33-355,361-365 1989 53 1-16,47-102,108-111, none none 118-133,139-161,179- 191,216-222,234-252, 259-262,280-289, 301-311 1990 66 155-158,164-263, none none 275-297 1991 39 17-73,85-94,131-158, (23)343-(12)344 none 170-183,189-260,266- 309,347-349,363-365 1992 63 165-285,292-304, none none 326-328 1993 74 222-259,271-284,296- none none 302,308-314,319-330 1994 77 189-232,238-241,247- none none 253,259-272,284-290 1995 41 1-51,69-84,91-152, none none 158-171,177-180,186- 192,198-204,216-235, 241-256,263-290, 296-312 1996 62 35-37,161-189,195- none none 198,204-211,217-220, 226-229,235-278,284- 300,312-318,324-333, 339-355 1997 16 1-20,26-38,45-109, none none 115-155,157-162,167- 180,186-204,210-229, 235-269,275-297,300- 343,349-365 1998 100 none none none 1999 100 none none none 2000 100 none (00)275-(06)275 none 2001 67 1-120 (05)271-(13)271 none 2002 100 none none none 2003 100 none none none 2004 67 32-152 none none 2005 100 none none none 2006 100 none none none 2007 99 65-66 none none 2008 100 none (22)346-(19)347 none 2009 100 none none none 2010 100 none none none 2011 100 none none none 2012 100 none none none 2013 100 none none none 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