QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       Updated: 21 Nov 2019
              Station  : Prickley Bay              Latitude:  12 00.3N
              Country  : Grenada                  Longitude: 061 45.9W
              JASL #   : 789A                 Time Meridian: 060W (GMT - 4 hr)
              GLOSS #  : none Originator #: 789      NODC #: 71065101
              Contributor  : University of Hawaii Sea Level Center (UHSLC)
                             1000 Pope Rd. MSB 317
                             Honolulu, HI 96822
              Originator   : same
              Original Data: digital
              Instrmnt Type: 1) 2011 - radar (RAD) gauge (Vega Vegapuls 62)
                             2) 2011 - pressure transducer (PRS)
                             3) 2011 - bubbler (BUB)

                             Primary channel used in JASL set:
                             2011-2018: RAD                             
                            *short gaps in primary channel filled with
                             other channels as available; see UHSLC for
                             specific dates
              Digitzd Intvl: 2 min (RAD); 2 min (PRS); 10 min (BUB)
              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 : 10 May 2011 - 31 Dec 2018
              Gaps > 1 mon : none
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes      
              Sat. Trans.  : Yes                 Distribution        : 2011-2018
              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 data are of good quality.  The 13 Feb 2018
                             update adjusted the level 10 May 2011 - 28 Feb 
                             2018 by -15 mm.

                             JASL Nov 2019 update replaces 2016- 05 Sep 2017.
                                                                    
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              2011  64 none                 (11)181-(19)181 none
              2012 100 none                 none            none
              2013 100 none                 (13)174-(00)175 none
                                            (23)234-(08)235
              2014 100 none                 none            none
              2015 100 none                 none            none
              2016  98 284-285,309-311,352- (08)058-(15)058 none
                       353,355-356,362-365  (07)213-(20)213
                                            (19)249-(10)250
                                            (23)287-(11)288
                                            (06)334-(22)334
              2017  84 2-12,27-28,33-38,40- (15)023-(11)024 none
                       47,49-57,59-65,70-   (07)088-(18)088
                       85,92-96             (02)104-(14)104
                                            (01)284-(11)284
              2018 100 none                 (21)233-(13)234 none