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 : Las Palmas-D Latitude: 28 08.0N Country : Spain Longitude: 015 25.0W JASL # : 217D Time Meridian: GMT GLOSS # : 251 Originator #: 016 NODC #: 72018502 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 : 07 May 1991 - 31 Dec 2017 Gaps > 1 mon : 08 Oct 2009 - 25 Nov 2009;28 Apr 2010 - 01 Oct 2010 18 Aug 2013 - 08 Oct 2013;01 May 2017 - 09 Jun 2017 Time Refernce: GMT (00-23 hours) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 1991-2017 Refernce Levl: The data have been linked to the port datum which is tied to a local set of bench marks. The series 217D is separate from 217A, 217B, and 217C due to unresolved reference level shifts. Benchmarks: Tide Gauge Benchmark (TGBM): NGU-340 located inside the TG building Aux1: SS2M, located next to the TG building Aux2: SS3M, located in dock of King Sofia in front of TG building Tide Gauge Zero: 0.08m above Hydrographic Zero TGZ: 1.444m below Local Mean Sea Level TGZ: 4.179m below TGBM TGZ: 3.891m below Aux1 TGZ: 4.164m below Aux2 Comment : This site is physically located in the harbor of Puerto de la Luz in the City of Las Palmas de Gran Canaria. The data were screened and quality controlled using IEO procedure. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1991 66 none none 147-154,182,194 1992 100 none (01)091-(00)092 none 1993 100 none none none 1994 100 none none none 1995 100 none none none 1996 100 none none none 1997 100 none none none 1998 100 none none none 1999 100 none none none 2000 100 none none none 2001 100 none none none 2002 100 none none none 2003 100 none none none 2004 100 none none none 2005 100 none none none 2006 99 273-274,301-303 (11)029-(00)030 none 2007 100 none (11)021-(00)022 none 2008 100 none none none 2009 87 281-329 none none 2010 57 118-274,342-344 (15)317-(12)318 none (16)318-(13)319 (06)320-(13)320 (19)323-(05)324 (08)324-(16)324 (10)327-(18)327 (22)327-(06)328 (14)331-(21)331 (15)332-(23)332 (05)335-(13)335 (08)337-(15)337 2011 96 48-52,131-133,205- (22)019-(05)020 none 213 (10)020-(18)020 (11)022-(19)022 (22)022-(08)023 (13)041-(22)041 (06)045-(15)045 (01)048-(08)048 (21)055-(12)056 (02)060-(19)060 (11)061-(09)062 (20)062-(11)063 (13)349-(20)349 (14)351-(23)351 (05)354-(13)354 2012 97 182-192 (20)007-(05)008 none (21)036-(20)037 (12)338-(21)338 (23)338-(09)339 (01)340-(10)340 2013 77 33-35,45-55,62-63, (09)071-(19)071 56-61 136-144,230-281,305- (22)071-(06)072 315,348-350 (09)087-(18)087 (00)302-(13)302 (00)303-(11)303 2014 95 226-246 none none 2015 97 152-162 (09)328-(17)328 none 2016 99 360-361 (01)168-(11)168 none (05)260-(12)260 (01)303-(10)303 (02)365-(13)365 2017 87 1-8,121-160 (20)078-(19)079 none (07)336-(20)336