QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 27 Mar 2014 Station : Funchal-B,Madeira Is. Latitude: 32 38.6N Country : Portugal Longitude: 016 54.8W JASL # : 218B Time Meridian: 000W (GMT) GLOSS # : 250 Originator #: 112 NODC #: 73012601 Contributor : Instituto Hidrografico Marinha Rua das Trinas 49-P-1296 Lisboa Codex Lisbon PORTUGAL Originator : same Original Data: analog Instrmnt Type: 1) historic gauge: Float and well, A.OTT 2) Thales float/well digital gauge (primary gauge 2009 onward) Digitzd Intvl: hourly (historic) and 6 min (Thales) 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 : 06 Oct 1976 - 31 Dec 2013 Gaps > 1 mon : 05 Apr 1978 - 15 Mar 1979;04 Jul 1979 - 12 Nov 1981 17 Feb 1982 - 27 Apr 1983;09 Nov 1983 - 12 May 1986 30 Jul 1987 - 07 Oct 1987;29 Jan 1997 - 25 Mar 1997 23 Aug 1999 - 31 Dec 1999;10 Dec 2001 - 05 Feb 2002 15 Apr 2002 - 29 May 2002;11 Jul 2010 - 18 Oct 2010 28 Feb 2011 - 09 Apr 2011;24 Jan 2012 - 12 Mar 2012 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : yes Sat. Trans. : No Distribution : 1976-2013 Refernce Levl: Tide Gauge Zero (TGZ) = Portuguese Hydrographic Institute Chart Datum. Tide Gauge Benchmark is MC, benchmark bolt inside the tide gauge hut, adjacent to the well. TGZ = 1.40m below adopted mean sea level TGZ = 5.706m below MC TGZ = 4.079 below Benchmark BH20/02 in the container pier, near tide gauge TGZ = 4.723m below Benchmark BH21/02 in the container pier TGZ = 5.706m below D002/97 in the right hand side of the pier - Cais da Pontinha 200m from the end of the pier TGZ = 19.006m below NP Forte de S. Tiago (IGP) in the top of the S.Tiago's fort, on the right hand side of the stairs, next to the landmark Comment : The series contains large gaps. The daily and monthly means do not reveal any obvious reference level shifts. A new station across the small harbor was installed in 2008 at coordinates: 32 deg 38.64N 16 deg 54.78W Due to harbor construction, the older tide gauge has bad quality data in 2009 so the new station is the primary source. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1976 24 none none none 1977 100 none none 360-363 1978 26 95-365 none 1-2 1979 28 1-75,136-144, none 78-81,92-95,102-103 185-365 1980 0 1-366 none none 1981 9 1-317,330-345 none none 1982 13 48-365 none none 1983 54 1-118,313-365 none none 1984 0 1-366 none none 1985 0 1-365 none none 1986 64 1-133 none 142-145 1987 81 211-280 none none 1988 99 3-8 none none 1989 100 none (00)351-(23)351 none 1990 100 none none none 1991 96 80-83,171-174,295- none none 298,315-321 1992 78 81-85,102-106,110- (00)210-(23)210 none 123,125-151,202-205, 215-219,223-228,230- 249,252-256 1993 98 252-255,290-296 none none 1994 100 none none none 1995 95 7-9,121-124,205-212, none none 251-256 1996 98 33-37,243-244 none 30-31 1997 87 29-77,83-84 (21)078-(15)079 none 1998 100 none none 103,114,117,139-140 1999 64 220-221,235-365 none none 2000 99 118-119 none none 2001 90 30-31,57-64,183-190, none none 309-310,344-365 2002 78 1-36,105-149 none none 2003 100 none none none 2004 100 none none none 2005 100 none none none 2006 100 none none none 2007 100 none none none 2008 100 none none none 2009 100 none none none 2010 73 192-291 none none 2011 89 59-99 none none 2012 87 24-72 none none 2013 94 143-164 none none