QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 20 Mar 2014 Station : Veracruz-A,Ver. Latitude: 19 11.5N Country : Mexico Longitude: 096 07.4W JASL # : 250A Time Meridian: 090W (GMT - 6 hr) GLOSS # : 212 TOGA #: none NODC #: 71099601 Contributor : Servicio Mareografico Nacional Instituto de Geofisica Universidad Nacional Autonoma de Mexico 04510 Mexico, D. F. MEXICO Originator : same Original Data: analog (standard) digital (Stevens) Instrmnt Type: 1985-1995: standard float and stilling well 2006-2012: Stevens float and well Digitzd Intvl: hourly (standard); 6 min (Stevens) 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 : 01 Feb 1985 - 31 Dec 2012 Gaps > 1 mon : 01 Aug 1995 - 01 Sep 1995;01 Jan 1996 - 31 Dec 2005 25 Oct 2006 - 29 Aug 2007;22 Sep 2009 - 22 Oct 2009 01 Jun 2011 - 22 Oct 2011 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1985-2012 Refernce Levl: The sea level heights are referred to the station tide staff zero which is surveyed to fixed bench marks on land. Comment : The daily and monthly values do not reveal any obvious reference level shifts or trends. Vera Cruz-B is a separate gauge. The reference levels between 250A and 250B have not been linked. Missing data for 1996-2005 will likely become available for 250A. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1985 92 none none none 1986 100 none none 79,317-318,357 1987 98 140-142,187-189,216- (06)354-(12)354 3,166 218,244-246 1988 100 none none none 1989 100 none (00)259-(13)259 none 1990 100 none none none 1991 100 none none 60,166-167,176, 309-310 1992 100 none none 16,33 1993 100 none (06)020-(05)021 none 1994 100 none (06)011-(05)012 none 1995 91 213-244 none none 1996 0 1-366 none none 1997 0 1-365 none none 1998 0 1-365 none none 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 0 1-365 none none 2006 76 9-10,32-33,63-66, (20)058-(17)059 none 174-180,243-251, (17)060-(03)061 298-365 (22)203-(21)204 2007 34 1-241 none none 2008 100 none none none 2009 90 24-28,166-168, (23)237-(07)238 none 265-295 2010 90 282-285,296-298,331- (01)213-(23)213 none 336,337-347,348-365 (05)238-(17)238 (01)274-(00)275 2011 57 1,17-31,152-295 (20)334-(04)335 none 2012 100 none none none