QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 22 Apr 2004 Station : Porto do Rio Grande Latitude: 32 06.0S Country : Brazil Longitude: 052 06.2W JASL # : 714A Time Meridian: 045W (GMT - 3 hr) GLOSS # : 193 Originator #:60380 NODC #: 53052201 Contributor : Directoria de Hidrografia e Navegacao Banco Nacional de Dados Oceangraficos Rua Barao de Jaceguai, S/N 24040 Ponta de Armacao RJ, Niteroi BRAZIL Originator : Directoria de Hidrografia e Navegacao Centro de Hidrografia de la Marinha Original Data: analog Instrmnt Type: float and stilling well Digitzd Intvl: spot hourly 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 : 27 Jun 1981 - 31 Dec 2003 Gaps > 1 mon : 31 Jul 1981 - 06 Aug 1983;01 Sep 1984 - 01 Jan 1985 25 Nov 1985 - 01 Dec 1987;01 Jul 1988 - 01 Sep 1988 01 Dec 1988 - 02 Jan 1989;29 Nov 1989 - 01 Jun 2001 01 Oct 2001 - 01 Sep 2002 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1981-2003 Refernce Levl: The data have been linked to tide staff zero by the originators. Comment : The location has minimal tidal energy and strong meteorological influence. The short segment in 1981 appears to be low relative to the rest of the series; thus, use with discretion. The site is referred to as Cais da Praticagem do Rio Grande. The missing data may be recovered. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1981 9 212-365 none none 1982 0 1-365 none none 1983 36 1-218,244-260 none 218-225 1984 64 61-70,245-366 none none 1985 59 1,30-36,52-60,183- none 288,320-324 254,274-285,298-307, 329-365 1986 0 1-365 none none 1987 8 1-335 none none 1988 80 126-132,183-245, none 116-117 266-272 1989 82 1-2,333-365 none none 1990 0 1-365 none none 1991 0 1-365 none none 1992 0 1-366 none none 1993 0 1-365 none none 1994 0 1-365 none none 1995 0 1-365 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 33 1-152,274-365 none none 2002 33 1-244 none none 2003 100 none none none