QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 08 Mar 2012 
              Station  : Anewa Bay                 Latitude:  06 11.0S
              Country  : Papua New Guinea         Longitude: 155 53.0E
              JASL #   : 048A                 Time Meridian: 150E (GMT + 10 hr)
              GLOSS #  : none     TOGA #: none       NODC #: 30156501
              Contributor  : UH Sea Level Center                              
                             1000 Pope Rd. MSB 317                              
                             Honolulu, Hawaii 96822                             
              Originator   : Bougainville Copper PTY. LTD.
                             Panguna, Bougainville
                             Papua New Guinea
              Original Data: analog                                             
              Instrmnt Type: Float and well, Leupold Stevens A35
              Digitzd Intvl: one hour                                           
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : The original digitizing interval was 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 : 05 Aug 1968 - 31 Dec 1977
              Gaps > 1 mon : 20 Oct 1968 - 30 May 1969;16 Feb - 16 Mar 1977
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : No                  Operational         : No
              Sat. Trans.  : No                  Distribution        : 1968-1977
              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.
              Comment      : The timing is of poor quality.  Otherwise the daily
                             and monthly values appear reasonable with no 
                             obvious reference level shifts or trends.  The site
                             was discontinued in 1977.

                             The dataset was updated on 08 Mar 2012 since it
                             was found that the data were relative to local
                             time.  The updated version had 10 hours subtracted
                             from the original version in order to be
                             relative to GMT.
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1968  21 295-366              none            none
              1969  58 1-150,201-202,       none            none
                       250-251
              1970 100 none                 none            none
              1971  95 28-33,73-85          none            none
              1972  93 28-38,129-133,       (01)117-(20)117 278-281
                       195-198,209-216      (08)174-(17)174
                                            (09)206-(06)207
                                            (17)311-(09)312
              1973  93 19-20,86-89,232-236, (01)022-(11)022 21
                       250-264,320-325      (07)050-(18)050
              1974  72 6-16,37-44,63-77,    (01)029-(09)029 none
                       157-164,173-186,202-
                       224,321-326,342-365
              1975  86 1-10,13-20,24-28,    (00)315-(11)315 328-331
                       286-314,325-328
              1976  90 89-90,115-124,       (00)260-(23)260 none
                       208-232,270-272
              1977  88 32-39,47-75,         none            none
                       305-313,365