QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 22 Sep 2020
              Station  : Christiansted,VI          Latitude:  17 45.0N
              Country  : USA                      Longitude: 064 42.3W
              JASL #   : 258A                 Time Meridian: 060W (GMT - 4 hr)
              GLOSS #  : none Originator #:9751364   NODC #: 71067601 
              Contributor  : National Ocean Service (NOS)                       
                             National Ocean. and Atmos. Administration (NOAA)   
                             N/OES22
                             SSMC4, STATION 7109
                             1305 East West Highway
                             Silver Spring, MD. 20910-3233
              Originator   : same                                               
              Original Data: Digital                                            
              Instrmnt Type: Aquatrak acoustic gauge, NOAA Next 
                             Generation Water Level Measuring System
              Digitzd Intvl: 6 minute (each sampling is three-minute average)
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : Discrete sampling 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 : 24 Feb 2006 - 31 Dec 2019
              Gaps > 1 mon : 01 Oct 2017 - 10 Mar 2018
              Time Refernce: GMT (hours 00-23)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes      
              Sat. Trans.  : Yes                 Distribution        : 2006-2019
              Refernce Levl: All heights have been referred to the station datum
                             which is linked to fixed bench marks.
                             A constant of 7000 mm subtracted from 
                             originator's data to fit the UH format.
              Comment      : The data are of high quality.
                                                                                
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              2006  85 none                 none            none
              2007  91 50-57,66-74,328-244  (03)049-(18)049 none
              2008 100 none                 none            none
              2009  98 271-280              none            none
              2010 100 none                 none            none
              2011 100 none                 none            none
              2012 100 none                 none            none
              2013 100 none                 none            none
              2014 100 none                 none            none
              2015 100 none                 none            none
              2016 100 none                 none            none
              2017  75 274-365              none            none
              2018  81 1-69                 none            none
              2019 100 none                 none            none