Townsville (Australia) Site History
History Summary
| Station | Townsville |
|---|---|
| Country | Australia |
| Gloss No. | 060 |
| Latitude | 010° 15.0' S |
| Longitude | 146° 50.0' E |
| Time Meridian | 150E (GMT +10 hr) |
| Time Reference | GMT (hours 00 - 23) |
| Contributor | National Tidal Facility (NTF), Flinders University of South Australia, GPO Box 2100, Adelaide, S.A. 5001, Australia. |
| Instrument Type | Standard float /well gauge |
| Observational periods | 1985 - present |
Benchmarks
| Benchmark | Description |
|---|---|
| NMV/B/309A (TGBM) | Brass rod in concrete footing of elevated loading conveyor on concrete wharf No. 6 (PSM 19533) |
| BM 10011 (Auxiliary) | NE corner of State Offices, Wickham Street, Townsville. |
| NMV/B/310A (Auxiliary) | Brass rod in concrete near edge of Wharf No.6 (PSM19534) |
| TPA Master BM (Auxiliary) | Brass rod in concrete under steel plate, Wharf No.4 (PSM 47788). |
| PSM 100028 (Auxiliary) | Permanent survey plaque in concrete at base, Wharf No. 4 |
Benchmark Relationships
Tide Gauge Zero (TGZ) = 6.099m below NMV/B/309A
TGZ = 8.745m below BM10011
TGZ = 1.576m below Australian Height Datum (AHD)
Quality Assessment
Comment
The data reveal no apparent changes in reference level.
Most questionable fluctuations are related to timing errors of the gauge. Only extreme fluctuations are listed below.
| Year | CI(%) | Missing Data | Replaced Gaps or Bad Data | Questionable Fluctuations |
|---|---|---|---|---|
| 1985 | 100 | none | 218(08)-218(11) 219(09)-219(14) | none |
| 1986 | 98 | 38(02)-40(22) 186(00)-187(22) | 090(11)-090(13) 230(13)-230(14) 231(13)-231(16) 232(13) | 174 |
| 1987 | 99 | 150(04)-151(23) | 249(22)-250(00) | none |
| 1988 | 98 | 304(23)-311(22) | 344(23)-345(00) | none |
| 1989 | 100 | none | 076(13)-076(14) 085(21)-085(22) | none |
| 1990 | 100 | none | none | none |
| 1991 | 99 | 048(09)-051(01) 207(14)-208(05) | 009(21),010(19) 010(20),302(00) | none |
| 1992 | 98 | 093(23)-096(22) 295(19)-299(22) | 268(12)-268(13) | none |
| 1993 | 100 | none | none | none |
| 1994 | 100 | none | 009(22),060(13) | none |
| 1995 | 100 | none | 167(06)-167(08) | none |
| 1996 | 100 | none | 007(18) | none |
| 1997 | 100 | none | 082(15)-082(17) | none |
| 1998 | 100 | none | 124(16) | none |
