QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 22 Sep 2003
              Station  : Honiara-A, Guadalcanal    Latitude:  09 25.5S          
              Country  : Solomon Islands          Longitude: 159 57.4E          
              JASL #   : 009A                 Time Meridian: 165E (GMT + 11 hr) 
              GLOSS #  : 066      TOGA #: P036       NODC #: 30159901           
              Contributor  : UH Sea Level Center                              
                             1000 Pope Rd. MSB 317                              
                             Honolulu, Hawaii 96822                             
              Originator   : same
              Original Data: digital                                            
              Instrmnt Type: 1. (1974-1996) Leupold and Stevens     
                                Analog-to-Digital Recorder (ADR);
                             2. (11/1984-1996) Handar Encoder (ENC)   
                             Primary gauge: ADR:1974-90, ENC 1991-95
              Digitzd Intvl: 15 min (ADR); 3 or 4 (ENC)
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : (pre-1987) Nine-point triangular filter centered   
                             on the hour with respective periods of the 95, 50, 
                             and 5% amplitude point of the filter response at   
                             623.6, 177.0, and 103.7 minutes;(1987+) three-point
                             Hanning filter centered on the hour (UHSLC)
                    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 : 20 Nov 1974 - 04 Jan 1995
              Gaps > 1 mon : 16 Jun - 13 Sep 1979;01 Jul 1997 - 08 Sep 1997
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : No                  Operational         : No
              Sat. Trans.  : No                  Distribution        : 1974-1995
              Refernce Levl: Heights are referred to the station tide staff 
                             zero, which is linked to land-based benchmarks. 
                             This reference zero is unique to this station and
                             is not an official datum (chart, national, etc.) 
                             and is not relative to local tidal parameters, 
                             such as mean lower low water.  See the Originators
                             for benchmark descriptions, maps, and the geodetic
                             levelling history.

                             Series 009A is separate from 009B (National Tidal
                             Facility, Australia) because they are at different
                             locations.  
              Comment      : The daily and monthly means reveal no apparent     
                             changes in the reference level and agree with      
                             Funafuti. 
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1974  11 none                 none            none                
              1975  92 33-52,167-174        none            none                
              1976  99 265-267              none            none                
              1977 100 none                 none            none                
              1978  99 88-89,177-178        none            none                
              1979  74 139-140,146-147,     (13)144-(05)145 none                
                       151-152,162-163,     (15)148-(05)149                     
                       168-256                                                  
              1980 100 none                 none            none                
              1981  97 2-4,126-127,         none            none                
                       182-186                                                  
              1982 100 none                 none            none                
              1983  99 345-347              none            210-211             
              1984 100 none                 none            none                
              1985  99 215-218              none            none                
              1986 100 none                 none            none                
              1987 100 none                 none            none                
              1988 100 none                 none            none                
              1989 100 none                 none            none                
              1990 100 none                 none            none                
              1991 100 none                 none            none                
              1992 100 none                 none            211-216,240-247
              1993 100 none                 none            none
              1994  98 91-94,151-152,177-   (00)122-(23)122 none
                       180
              1995   1 none                 none            none