QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                                                                
              Station  : Pemba-A                   Latitude:  12 58.0S          
              Country  : Mozambique               Longitude: 040 30.0E          
              JASL #   : 192A                 Time Meridian: 030E (GMT + 2 hr)  
              GLOSS #  : 011      TOGA #: I008       NODC #: 31042001           
              Contributor  : Instituto Hidrografico Marinha                     
                             Rua das Trinas                                     
                             49-P-1296 Lisboa Codex                             
                             Lisbon, Portugal                                   
              Originator   : same                                               
              Original Data: unconfirmed                                        
              Instrmnt Type: unconfirmed                                        
              Digitzd Intvl: unconfirmed                                        
              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 : 30 Sep 1971 - 31 Jan 1973                          
              Gaps > 1 mon : 01 Jan 1972 - 31 Dec 1972                          
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Uncertain           Operational         : Uncertain
              Sat. Trans.  : No                  Distribution        : 1971-1973
              Refernce Levl: All heights have been referred to the station tide 
                             staff zero which is linked to fixed bench marks    
              Comment      : The daily means due not reveal any obvious         
                             reference level problems.  Timing errors occur     
                             throughout.                                        
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1971  25 none                 none            273-306,309-310,313-
                                                            319,323-325,328-329,
                                                            336-365             
              1972   0 1-365                none            none                
              1973   9 none                 none            1-31