QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 17 Sep 2020
              Station  : Culebra, PR               Latitude:  18 18.0N
              Country  : USA                      Longitude: 065 18.1W
              JASL #   : 219A                 Time Meridian: 060W (GMT - 4 hr)
              GLOSS #  : none Originator #:9752235   NODC #: 71068501 
              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 : 19 Aug 2005 - 31 Dec 2019
              Gaps > 1 mon : 14 Oct 2010 - 05 Mar 2011;12 Feb 2013 - 10 Mar 2016
                             01 Feb 2018 - 03 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        : 2005-2019
              Refernce Levl: All heights have been referred to the station datum
                             which is linked to fixed bench marks.
                             A constant of 7000 mm was 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      
              ---- --- -------------------- --------------- --------------------
              2005  37 none                 none            none
              2006 100 none                 none            none
              2007 100 none                 none            none
              2008 100 none                 none            none
              2009 100 none                 none            none
              2010  76 50-59,287-365        none            none
              2011  83 1-64                 none            none
              2012 100 none                 none            none
              2013  12 none                 none            none
              2014   0 none                 none            none
              2015   0 none                 none            none
              2016  81 1-70                 none            none
              2017 100 none                 none            none
              2018  92 32-62                none            none
              2019 100 none                 none            none