QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       Updated: 09 Feb 2011
              Station  : Arrecife-D                Latitude:  28 57.0N          
              Country  : Spain                    Longitude: 013 34.0W          
              JASL #   : 205D                 Time Meridian: GMT                
              GLOSS #  : none     TOGA #: none       NODC #: 72018301
              Contributor  : Instituto Espanol de Oceanografia                  
                             C/ Corazon de Maria, No. 8 - 1                     
                             28002 Madrid                                       
                             SPAIN                                              
              Originator   : same                                               
              Original Data: analog                                             
              Instrmnt Type: A.OTT, float and stilling well                     
              Digitzd Intvl: one hour                                           
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : direct digitization, no filter                     
                    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 1987 - 31 Dec 1991
              Gaps > 1 mon : 01 Mar 1991 - 17 Apr 1991
              Time Refernce: GMT (00-23 hours)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes
              Sat. Trans.  : No                  Distribution        : 1987-1991
              Refernce Levl: The data have been linked to tide staff zero       
                             and fixed bench marks by the originators.
              Comment      : This series is separate from Arrecife-C because
                             of a level shift 27 Dec 1986.  Otherwise, no
                             level shifts are apparent.
                             
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1987 100 none                 (17)181-(23)181 16-19,85-92,108-110,
                                            (18)191-(01)192 243-244
                                            (04)245-(13)245
                                            (15)252-(01)253
                                            (00)278-(13)278
                                            (01)296-(13)296
              1988  98 13-22                none            153-162,255-260
              1989  90 1-25,352-365         none            37-52,60-62,71-73,
                                                            94-99
              1990  94 1-5,34-40,212-224    none            142-147,340-346,365
              1991  70 1-6,51-58,60-107,    (06)162-(23)162 14-16,45-49
                       227-235,259-264,282- (00)361-(09)361
                       302,308-314,331-341,
                       345-350,356-360