QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                                                                
              Station  : San Quintin               Latitude:  30 29.0N          
              Country  : Mexico                   Longitude: 115 59.0W          
              JASL #   : 308A                 Time Meridian: 120W (GMT - 8 hr)
              GLOSS #  : none     TOGA #: none       NODC #: 73110501           
              Contributor  : Centro de Investigacion Cientifica                 
                             y de Educacion Superior de Ensenada (CICESE)       
                             Av. Espinoza No. 843                               
                             APDO. Postal 2732                                  
                             Ensenada, Baja California, Mexico                  
              Originator   : same                                               
              Original Data: analog (SA), digital (ADR)                         
              Instrmnt Type: 1. Standard analog (SA) float gauge (1977-1982),   
                             2. Leupold and Stevens Analog-to-Digital Recorder  
                                (ADR) model 7001, float gauge (1983+)           
              Digitzd Intvl: hourly (SA), 30 minutes (ADR)                      
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : Running mean A2,A2,A3 (Godin,1972)                 
                    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 May 1977 - 31 Dec 1990
              Gaps > 1 mon : 03 Jan 1984 - 02 Feb 1984;17 Mar 1987 - 29 Apr 1987
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes      
              Sat. Trans.  : No                  Distribution        : 1977-1990
              Refernce Levl: The data are referred to tide staff zero which is  
                             linked to fixed bench marks.  However, comparisons
                             with neighboring sites and examination of the 
                             hourly residuals has lead to the following
                             adjustment:
                                      period                value added         
                             ( (hour)day/month/year )       to original(mm)     
                             ---------------------------    ---------------     
                             (00)01/09/82 - (23)17/03/87           60
                             (00)24/11/88 - (21)26/10/90          -50
                             (22)26/10/90 - (23)31/12/90         -130
                           These adjustments are accurate to a few centimeters.
              Comment      : The daily and monthly values do not reveal any 
                             obvious reference level shifts or trends and 
                             agree reasonably well with the nearest stations.
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1977  59 280-283              none            none                
              1978  99 230-233              (05)225-(15)225 152-162,169-192,    
                                                            196-220,248         
              1979 100 none                 none            none                
              1980  95 70-87                none            none                
              1981 100 none                 none            none                
              1982 100 none                 (22)081-(19)082 none                
              1983 100 none                 none            none                
              1984  92 3-34                 none            none                
              1985  92 308-336              (01)275-(20)275 none                
              1986  99 41-43                (06)038-(22)038 7-14,36-38          
              1987  88 76-119               none            none                
              1988  94 306-328              none            none                
              1989 100 none                 none            97-98,112-113,      
                                                            126-127             
              1990 100 none                 none            none