QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 11 Aug 1999
              Station  : Luis Correia              Latitude:  02 52.0S
              Country  : Brazil                   Longitude: 041 40.3W
              JASL #   : 711A                 Time Meridian: 045W (GMT - 3 hr)
              GLOSS #  : none     TOGA #: none       NODC #: 50042101         
              Contributor  : LPAO/INPE Oceanografia
                             Av. Dos Astronautas 1758
                             Sao Jose Dos Campos, BRAZIL 
              Originator   : Instituto Nacional de Pesquisas Hidroviarias
                             National Port Authority (PORTOBRAS)
                                Primary agency responsible for the data:
                             National Oceanographic Data Bank of Brazil
                             Directoria de Hidrografia e Navegacao
                             Dept. de Servicos Oceanicos          
                             Rua Barao de Jaceguai, S/N 24040     
                             Ponta de Armacao                     
                             RJ, Niteroi, BRAZIL                               
              Original Data: analog
              Instrmnt Type: float/well tide gauge
              Digitzd Intvl: hourly
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : spot on the hour
                    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 : 03 Feb 1984 - 15 Feb 1985
              Gaps > 1 mon : none
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : No
              Sat. Trans.  : No                  Distribution        : 1984-1985
              Refernce Levl: The data have been linked to tide staff zero by    
                             the originators.  
              Comment      : The hourly residuals and daily data suggest
                             unconfirmed level jumps of about +10 cm on
                             24 May and 24 Nov 1984.  The timing is poor
                             during Feb - Apr 1984 and Dec 1984 - Feb 1985.
                                                                           
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1984  91 328-329              (12)239-(11)240 34-108,329-330,
                                                            345-365
              1985  13 none                 none            7-23,37-46