QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 23 Dec 2002
              Station  : Santana SSN-B             Latitude:  00 03.7S
              Country  : Brazil                   Longitude: 051 09.6W
              JASL #   : 717B                 Time Meridian: 045W (GMT - 3 hr)
              GLOSS #  : none Originator #:10610     NODC #: 50050102
              Contributor  : Directoria de Hidrografia e Navegacao              
                             Banco Nacional de Dados Oceangraficos
                             Rua Barao de Jaceguai, S/N 24040                   
                             Ponta de Armacao                                   
                             RJ, Niteroi                                        
                             BRAZIL                                             
              Originator   : Directoria de Hidrografia e Navegacao
                             Centro de Hidrografia de la Marinha
              Original Data: analog
              Instrmnt Type: float and stilling well                            
              Digitzd Intvl: spot hourly
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : spot hourly                                        
                    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 1999 - 01 Feb 2000
              Gaps > 1 mon : none
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : No                  Operational         : Yes
              Sat. Trans.  : No                  Distribution        : 1999-2000
              Refernce Levl: The data have been linked to tide staff zero by
                             the originators.  However, time segments of data
                             of 1994-1995 and 1999-2000 appear to have
                             independent datums; thus, the series are kept
                             separate.  This site has not been linked to
                             the other Santana tide station, JASL ID 716.                             
              Comment      : The site is located near a wide, strong river.
                             The site is referred to as "SSN-Santana" by 
                             the originators.  The complex tides were not 
                             resolved well by the tidal analysis thus
                             it is difficult to distinguish timing errors 
                             in the residuals.  
                                                                 
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1999 100 none                 none            see comment above
              1995   8 none                 none            see comment above