Spring Bay (Tasmania, Australia) Site History

History Summary

Station Name Spring Bay
Country Tasmania, Australia
Latitude 42° 33.0' S
Longitude 147° 56.0' E
GLOSS No. 056
Time Reference GMT (00-23 hours)
Contributor 1991- Flinders University of South Australia
Instrument Type Upto 12/05/1991 Float and stilling well gauge
12/05/1991-present NGWLMS (Acoustic gauge)
Site of Gauge  
Observational Periods 1991 - 2001

Reference Level

All data are referred to Tide Gauge Zero (TGZ) and linked into historic fixed benchmarks.

Benchmark Relationships

TGZ = Local Chart Datum

Quality Assessment

Comments

The daily or monthly means do not reveal any obvious reference level shifts.

Residuals are extremely noisy and large fluctuations are possibly attributed to the passage of high and low pressure cells across the South coast of Australia. Since 1991, atmospheric pressure has been measured at the tide gauge site.

Year Completeness
Index (%)
Questionable Fluctuations (in day Nos.)
and Missing Data (Gaps >6 hours)
1991 94 None
Gap From 1991/01/08 at 04.00 to 1991/01/14 at 03.00
Gap From 1991/03/10 at 20.00 to 1991/03/26 at 22.00
1992 100 None
1993 100 None
1994 100 None
1995 100 None
1996 100 None
1997 96 None
Gap From 1997/05/13 at 05.00 to 1997/05/14 at 01.00
Gap From 1997/10/22 at 09.00 to 1997/11/04 at 21.00
1998 100 None
1999 99 1-19,335-340,354-358
Gap From 1999/03/13 at 00.00 to 1999/03/16 at 00.00
Gap From 1999/06/28 at 00.00 to 1999/06/29 at 04.00
2000 100 339-348
2001 100 None