Qaqortoq (Julianehab) Site History

History Summary

Station Name Qaqortoq, Julianehab
Latitude 60° 43.0' N
Longitude 046° 02.0' W
Country Denmark
WOCE No. 9020
Time Reference GMT (00-23 hours)
Contributor 1991-1999 Royal Danish Administration of Navigation & Hydrography
Instrument Type Pressure gauge
Site of Gauge  
Observational Period 1991 - 1999
Reference Level All data are referred to LAT which is Chart Datum for Greenland.

Quality Assessment

Comments

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 atmospheric pressure of 1013 mbar. After June 26 1992 the data are corrected for atmospheric 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 31.5 ppt.

All pre 1995 data have been adjusted by -610cm to refer to LAT.

The data contain significant energy of one to three day periods related to atmospheric and oceanographic events.

1996 data have been collected with a 15 minutes interval, but it slips 1 minute approximately every month.

Year Completeness
Index (%)
Questionable Fluctuations (In day Nos.)
and Missing Data (Gaps >6 hours)
1991 32 None
59 Gaps of <= 6 Hrs Spanning a Total of 2 Days 11 Hours
1992 99 None
83 Gaps of <= 6 Hrs Spanning a Total of 3 Days 11 Hours
Gap from 1992/06/17 at 11.00 to 1992/06/18 at 12.00
1993 100 None
1994 100 None
1995 100 250-365
Timing questionable
1996 61 339,340
1997 99 106
2 Gaps of <= 6 Hrs Spanning a Total of 0 Days 5 Hours
1998 52 None
Gap from 1998/07/05 at 11.04 to 1998/12/28 at 17.13
1999 47 None
Gap from 1999/06/22 at 12.02 to 1999/12/31 at 23.47