QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 24 May 2017 Station : Kukup Latitude: 01 19.5N Country : Malaysia Longitude: 103 26.6E JASL # : 325A Time Meridian: 120E (GMT + 8 hr) GLOSS # : none Originator #: KUK NODC #: 10101302 Contributor : Dept. of Survey and Mapping Jalan Gurney 50578 Kuala Lumpur, Malaysia Originator : same Original Data: digital; samples taken every 10 sec; 50 sec average Instrmnt Type: Magnetic Tape Type Tide Gauge, Model LLT- 3AD (Kyowa Shoko Co. LTD, Japan) Digitzd Intvl: one hour Present Data : Hourly, daily, and monthly values obtained by: Hourly : Five-point least squares approximation (more information available from the address above) 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 : 17 Nov 1985 - 08 Dec 2015 Gaps > 1 mon : 11 May - 27 Jun 1991;27 Oct 2003 - 10 Dec 2003 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1985-2015 Refernce Levl: The sea level heights are referred to the zero point assigned to the tide gauge. Bench mark information is available upon request from the contributors. Comment : The residual series are very noisy which is probably due to shallow water tides that are not resolved by the harmonic analysis. The daily and monthly means of Kukup have a different signature than Johor Baharu yet agree with Keling. No reference level shifts are apparent. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1985 12 none none see comment above 1986 100 none none " " " 1987 100 none none " " " 1988 100 none none " " " 1989 100 none none " " " 1990 100 none none " " " 1991 83 131-178,208-222 none " " " 1992 88 85-112,145-161 none " " " 1993 100 none none " " " 1994 100 none none " " " 1995 96 178-185,206-213 none " " " 1996 100 none none " " " 1997 99 235-240 none " " " 1998 100 none none " " " 1999 100 none none " " " 2000 100 none none " " " 2001 100 none none " " " 2002 100 none none " " " 2003 88 300-344 none " " " 2004 92 299-329 none " " " 2005 100 none none " " " 2006 100 none none " " " 2007 100 none none " " " 2008 100 none none " " " 2009 97 266-285 none " " " 2010 100 none none " " " 2011 100 none none " " " 2012 100 none none " " " 2013 100 none none " " " 2014 100 none none " " " 2015 100 none none " " "