QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 23 Sep 2019 Station : Pointe-a-Pitre,Guadeloupe Latitude: 16 13.5N Country : France Longitude: 061 31.9W JASL # : 272A Time Meridian: 060W (GMT - 4 hr) GLOSS # : none Originator #: 520 NODC #: 71066101 Contributor : Meteo-France Direction Interregionale Antilles-Guyane B.P. 645, 97262 Fort-de-France, Cedex, FRANCE (1991-1998 Digitized by the UHSLC) and Service Hydrographique et Oceanographique de la Marine (SHOM) B.P. 426 13 Rue du Chatellier 29200 Brest Cedex, France Originator : SHOM/Meteo France/ Management of the Sea Guadeloupe Original Data: float:analog; radar: digital Instrmnt Type: 1983-1998: A.OTT type R16 (float/well) 2005- : radar Krohne BM100 Digitzd Intvl: float: hourly; radar: 10 min Present Data : Hourly, daily, and monthly values obtained by: Hourly : float: the original data are spot hourly; radar simple average of 2 min data at 1 second samples centered 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 : 04 Jan 1983 - 31 Dec 2018 Gaps > 1 mon : 02 Jan 1984 - 29 Jan 1987;06 May 1987 - 01 Jan 1991 19 Aug 1998 - 03 Nov 1998;01 Jan 1999 - 25 Oct 2005 15 Nov 2008 - 24 Sep 2009;11 Jul 2015 - 08 Oct 2015 10 Jan 2018 - 05 Apr 2018 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 1983-2018 Refernce Levl: The sea level heights are referred to the zero point assigned to the tide staff. Bench mark information is available upon request. The primary calibraton technique (float) is to adjust the placement of each analog roll to match the reading from the tide staff. This procedure has potential to introduce subtle shifts due to observational difficulties of reading the staff. However, it appears that meticulous care was taken during this procedure and no obvious signs of level shifts are detected. Comment : The daily and monthly means do not reveal any obvious reference level shifts. Anomalously high values on 14 Sept 1995 are associated with hurricane Marilyn and 18 Sept 2017 from hurricane Maria. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1983 93 1-3,143-145,215-235, (04)081-(03)082 49-52,158-164,208- 311-312 (04)095-(03)096 210,312-317 (04)206-(03)207 (04)306-(03)307 1984 1 2-366 none none 1985 0 1-365 none none 1986 0 1-365 none none 1987 27 1-29,126-365 none none 1988 0 1-366 none none 1989 0 1-365 none none 1990 0 1-365 none none 1991 98 1,141-148 none none 1992 98 209-216 none none 1993 97 354-365 (10)103-(15)103 none (05)152-(10)152 (04)348-(09)348 1994 97 1-3,264-277 (05)081-(12)081 none (01)228-(09)228 (01)242-(10)242 1995 100 none (01)135-(10)135 none 1996 100 none (00)002-(07)002 none (01)045-(08)045 1997 97 32-34,103-112 none none 1998 80 231-307 (13)132-(21)132 none (16)181-(23)181 1999 0 1-365 none none 2000 0 1-366 none none 2001 0 1-365 none none 2002 0 1-365 none none 2003 0 1-365 none none 2004 0 1-366 none none 2005 18 1-298 none none 2006 96 15-31 (20)085-(18)086 none 2007 100 none (18)183-(12)184 none (19)186-(02)187 (10)246-(22)246 2008 87 320-366 (04)093-(12)093 none 2009 26 1-267,291-294 none none 2010 99 202-204 (14)174-(00)175 none 2011 99 151-154 (09)082-(23)082 none (17)139-(07)140 2012 94 145-147,155-156,171- (23)124-(10)125 none 179,265-271,332-334, 351-356 2013 97 128-133,332-338 none none 2014 100 none (19)309-(15)310 none 2015 75 192-281,292-294 none none 2016 99 41-42 (00)026-(14)026 none 2017 100 none none none 2018 77 10-95 none none