QUALITY ASSESSMENT OF SEA LEVEL DATA                
                                           by the                               
                   UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER     
                                 JOINT ARCHIVE FOR SEA LEVEL                    
                                       updated: 07 Dec 2004
              Station  : Qaqortoq, Julianehab      Latitude:  60 43.0N
              Country  : Denmark                  Longitude: 046 02.0W
              JASL #   : 299A                 Time Meridian: 045W (GMT-3hrs)
              GLOSS #  : 344      TOGA #: none       NODC #: 76040601
              Contributor  : Royal Danish Administration of Navigation
                             & Hydrography
                             Overgaden o.Vandet 62B
                             Postboks 1919,DK-1023
                             Copenhagen-K
                             DENMARK
              Originator   : same 
              Original Data: unconfirmed
              Instrmnt Type: pressure gauge
              Digitzd Intvl: unconfirmed
              Present Data : Hourly, daily, and monthly values obtained by:     
                    Hourly : 1991-1995 unconfirmed; 1996- three-point Hanning
                             centered on the sample time closest to 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 : 04 Sep 1991 - 31 Dec 1998
              Gaps > 1 mon : 30 Dec 1995 - 01 Jul 1996;23 Sep 1996 - 04 Dec 1996
                             05 Jul 1998 - 28 Dec 1998
              Time Refernce: GMT (00-23 hours)   Space-filler Flag   :-9999     
              Units        : millimeters         Missing Data Flag   : 9999     
              Existing     : Yes                 Operational         : Yes
              Sat. Trans.  : No                  Distribution        : 1991-1998
              Refernce Levl: All data are referred to LAT, which is Chart Datum
                             for Greenland.
              Comment      : 
              Data  up  to   June 26 1992  are  not  corrected  for  atmospheric
              pressure.  Conversion  from total  pressure to pressure due to sea
              water has  been  done  using a  fixed atm. pressure  of 1013 mbar.
              After  June 26 1992 the data are corrected for atm. pressure using
              data from a pressure sensor placed on land. Salinity not measured,
              sea level  elevation  calculated  from  pressure using a sea water
              density based on  measured  temperature and a salinity of 31.5ppt.
         
                    CI MISSING              REPLACED GAPS     QUESTIONABLE      
              YEAR (%) DATA                 OR BAD DATA       FLUCTUATIONS      
              ---- --- -------------------- --------------- --------------------
              1991  32 none                 none            none
              1992  99 169-170              none            none
              1993 100 none                 none            none
              1994 100 none                 none            none
              1995  99 365                  none            none
              1996  30 1-183,267-340        (15)187-(10)188 none
              1997 100 none                 none            none
              1998  52 186-362              none            none