QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 28 Jan 2000
              Station  : Keelung                  Latitude:   25 08.8N  
              Country  : Republic of China        Longitude: 121 44.7E
              JASL #   : 341A                 Time Meridian: 120E (GMT + 8 hr)
              GLOSS #  : none     TOGA #: none       NODC #: 12125101
              Contributor  : Marine Meteorology Center
                             Central Weather Bureau
                             64 Kung Yuan, Taipei, Taiwan
                             REPUBLIC OF CHINA 10039
              Originator   : same                          
              Original Data: analog (Fuji); digital (Sutron)
              Instrmnt Type: Fuji float/well (1980-6/1991);
                             Sutron RTU 9000 Aquatrak acoustic well (7/1991-)
              Digitzd Intvl: hourly (Fuji); 6-minute (Sutron)
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : spot hourly (Fuji); unconfirmed (Sutron)
                    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 Jan 1980 - 30 Nov 1999
              Gaps > 1 mon : 08 Apr 1998 - 23 Oct 1998;04 Jan 1999 - 02 Jun 1999
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes      
              Sat. Trans.  : No                  Distribution        : 1980-1999
              Refernce Levl: The sea level heights are referred to the Tidal
                             Datum and fixed bench marks.  Reference level
                             is 433.0 cm, which is 340.1 cm above the KP
                             (mean sea level of Keelung).
              Comment      : The data set is of excellent quality.  The monthly
                             means agree fairly well with Kaohsiung.  Minor
                             timing drifts are suspected in the hourly data.
                             The site was moved to 25 09.4N, 121 44.6E in
                             June 1991.
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1980 100 none                 none            none
              1981 100 none                 none            286-290
              1982 100 none                 none            none
              1983 100 none                 (06)028-(03)029 none
              1984 100 none                 none            none
              1985 100 none                 none            none
              1986 100 none                 none            none
              1987 100 none                 none            211
              1988 100 none                 none            none
              1989 100 none                 none            none
              1990 100 none                 none            231-232
              1991 100 none                 none            none
              1992  96 135-148              none            none
              1993  96 46-47,196-198,       (23)016-(15)017 none
                       342-224
              1994  96 187-200              none            none
              1995  87 277-281,287-288,291- (08)251-(15)251 none
                       316,333-336,344-357
              1996  88 181-197,220-222,236- (21)286-(15)287 none
                       252,308-312,350-355
              1997  96 61-64,122-135        (01)353-(00)354 none
              1998  46 98-296               (14)025-(21)025 none
                                            (00)301-(07)301
              1999  46 4-153,227-243        none            none