QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 08 Mar 2002
              Station  : Penang                    Latitude:  05 25.3N          
              Country  : Malaysia                 Longitude: 100 20.8E          
              JASL #   : 144A                 Time Meridian: 120E (GMT + 8 hr)  
              GLOSS #  : none     TOGA #: none       NODC #: 10105001           
              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 : 15 Nov 1984 - 31 Dec 2001
              Gaps > 1 mon : none                                               
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes      
              Sat. Trans.  : No                  Distribution        : 1984-2001
              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 daily and monthly means of Penang and an       
                             adjacent station, Lumut, agree very well.          
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1984  13 none                 none            none                
              1985  76 178-219,237-252,     none            27,55-56,83,254-255 
                       289-317                                                  
              1986  90 3-33,214-220         none            none                
              1987 100 none                 none            49,232-234,261      
              1988 100 none                 none            65,150-151,153,181, 
                                                            195-196,248,251,266,
                                                            277,280,324         
              1989 100 none                 none            57,213,266,349-352  
              1990  93 181-208              (05)171-(00)172 135                 
              1991 100 none                 none            none                
              1992 100 none                 none            none              
              1993  90 11-47                none            none              
              1994  99 172-174              none            none
              1995  98 182-191              none            none
              1996 100 none                 none            none
              1997 100 none                 none            none
              1998  95 51-70                (05)101-(03)102 none
              1999 100 none                 none            none
              2000 100 none                 none            181
              2001  99 12-17,365            none            196