QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 08 Oct 2020 Station : Apalachicola,FL Latitude: 29 43.6N Country : USA Longitude: 084 58.9W JASL # : 760A Time Meridian: 075W (GMT - 5 hr) GLOSS # : none Originator #:8728690 NODC #: 72089401 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 : same Original Data: Digital Instrmnt Type: Analog-to-digital (ADR) recorder (1976-1990); Aquatrak acoustic gauge, NOAA Next Generation Water Level Measuring System (NGWLMS) Digitzd Intvl: 6 minute (each sampling is three-minute average) 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 : 01 Apr 1976 - 31 Dec 2019 Gaps > 1 mon : 01 Jul 1999 - 31 Jul 1999;02 Dec 2006 - 17 Jan 2007 03 May 2008 - 01 Jul 2008 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 1976-2019 Refernce Levl: All heights have been referred to the station tide staff zero which is linked to fixed bench marks. Comment : The data are of good quality. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1976 75 none none 159-163,313-315,335- 347,354-361 1977 100 none none 1-20 1978 100 none none 34-36 1979 98 1-6 none 338-339 1980 100 none none none 1981 100 none none none 1982 100 none 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 100 none none none 1989 100 none none none 1990 100 none none none 1991 100 none none none 1992 97 293-303 none none 1993 99 50-53 none 54-55 1994 100 none none 199-207 1995 100 none none none 1996 98 279-285 none none 1997 100 none (15)090-(23)090 none (01)091-(13)091 (13)348-(20)348 (12)349-(21)349 (12)364-(19)364 1998 98 104-109,262-267 (01)054-(12)054 none (12)310-(20)310 1999 92 182-212 (14)004-(21)004 none (11)010-(20)010 (06)025-(13)025 (11)044-(19)044 (09)045-(17)045 (06)053-(13)053 (02)109-(09)109 (09)181-(18)181 (09)307-(16)307 (10)350-(22)350 (13)357-(23)357 2000 100 none (11)005-(18)005 none (03)100-(15)100 2001 100 none none none 2002 100 none none none 2003 99 23-25 (11)018-(19)018 none (13)019-(21)019 (04)025-(12)025 (08)027-(16)027 2004 100 none none 2005 100 none none 2006 91 189-194,336-365 (13)297-(20)297 none (11)324-(18)324 (09)325-(22)325 (11)326-(20)326 2007 94 1-17,63-65,106-107, (01)020-(19)020 none 163-165,333-334 (06)026-(15)026 (08)029-(18)029 (11)047-(20)047 (12)049-(07)050 (04)097-(12)097 (03)098-(11)098 (15)320-(22)320 (04)351-(23)351 2008 80 2-3,124-183,242-256 (08)004-(17)004 none (05)015-(12)015 (10)020-(22)020 (10)021-(20)021 (06)045-(14)045 (08)047-(15)047 (05)059-(13)059 (01)085-(13)085 (08)106-(15)106 (17)235-(01)236 (06)236-(17)236 (11)302-(18)302 (14)321-(22)321 (14)337-(22)337 (12)348-(20)348 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