QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                                                                
              Station  : Catalina-A                Latitude:  33 27.0N
              Country  : USA                      Longitude: 118 29.0W
              JASL #   : 313A                 Time Meridian: 120W (GMT - 8 hr) 
              GLOSS #  : none     TOGA #: none       NODC #: 73113801           
              Contributor  : Scripps Institute of Oceanography
                             University of California at San Diego              
                             La Jolla, California                               
              Originator   : unconfirmed
              Original Data: digital
              Instrmnt Type: Float and well; punch paper tape
              Digitzd Intvl: 6 minutes
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : 3-point Hanning filter centered 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 : 27 Jun 1978 - 02 Oct 1979
              Gaps > 1 mon : none
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : No                  Operational         : No
              Sat. Trans.  : No                  Distribution        : 1978-1979
              Refernce Levl: All heights have been referred to the station tide
                             staff zero which is linked to fixed bench marks 
              Comment      : The daily  and monthly means reveal no apparent
                             changes in the reference level.  This series is
                             distinguished from Catalina-B due to a level shift
                             of about 40 cm in October 1979.
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1978  50 1-178,298-304        none            291-298
              1979  72 152-164              none            none