QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                                                                
              Station  : Bridgetown-B              Latitude:  13 06.0N
              Country  : Barbados                 Longitude: 059 37.0W
              JASL #   : 249B                 Time Meridian: 060W (GMT - 4 hr)  
              GLOSS #  : none     TOGA #: none       NODC #: 71053901           
              Contributor  : Government of Barbados
                             Coastal Conservation Project Unit
                             Oistins Government Complex, Oistins
                             Christchurch
                             BARBADOS
              Originator   : same
              Original Data: digital
              Instrmnt Type: Endeco YSI 1029SSM pressure transducer
              Digitzd Intvl: variable
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : unconfirmed
                    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 May 1990 - 29 Aug 1991
              Gaps > 1 mon : 01 Jul 1990 - 02 Aug 1990
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes      
              Sat. Trans.  : No                  Distribution        : 1990-1991
              Refernce Levl: The sea level heights are referred to the recorder
                             zero datum.  This zero datum is located 1.62 m
                             below the Lamont datum which is the reference
                             datum used for all local bench mark surveys, which
                             are available upon request from the originators.
                             This series is separate from Bridgetown-C because
                             of an apparent level shift of about 60 cm during
                             the 1992 data gap.  It is also different from the
                             datum established for Bridgetown-A.
              Comment      : The daily and monthly means do not reveal any      
                             obvious reference level shifts.  However, there
                             appears to be a drift in the sensor from roughly
                             mid-August 1991 to the end of the record.  The 
                             timing of the hourly values appears to be good.
                                                                          
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1990  57 129-131,182-214,     (02)123-(13)123 none
                       278-279
              1991  65 57-60                none            none