GLOSS Station Handbook
Station information sheet
| General | |
| GLOSS number | 268 |
| Station name | Simonstown |
| Country | South Africa |
| Time zone | 030E, GMT + 2hrs |
| Latitude (+ve N) | -34.18333 |
| Longitude (+ve E) | 18.43333 |
| Ocean | Atlantic |
| Observation period(s) | 1957- |
| Responsible country | South Africa |
| Authority responsible for tide gauge | Hydrographer, South African Navy, Private Bag X1, Tokai 7966, South Africa |
| GLOSS contact | South_Africa |
| Committed to GLOSS | Yes |
| Operational | Yes |
| Instrumentation | |
| Float | Yes |
| Pressure | No |
| Bubbler | No |
| Acoustic | Yes |
| Radar | Yes |
| Data | |
| Digital data | Yes |
| Additional parameters | Sea temperature (from 1990), air pressure (from 1990) |
| Data acquisition rate | Float/stilling well - digitized hourly. Acoustic meaned values recorded at one minute intervals. |
| Fast delivery data at UHSLC |   |
| High frequency data at BODC |  |
| High frequency data at UHSLC | |
| Data held at national organisation | Yes |
| Real-time data available | No |
| Additional parameters (real-time) | Sea temperature (from 1990), air pressure (from 1990) |
| Benchmarks | |
| Tide gauge benchmarks | Trig Survey BM 28 G. UTM Grid Reference 34 HBT 641144. |
| Benchmark relationships | Tide Gauge Zero (TGZ) = South Africa Chart Datum TGZ = 0.651m below LLD (MSL) until 31 December 1978 TGZ = 0.900m below LLD (MSL) from 01 January 1979 TGZ = 3.663m below BM 28 G |
| Data at PSMSL | |
| Annual MSL (RLR) data | |
| Annual MSL (RLR) plot |  |
| MSL method | Doodson X0 filter |
| PSMSL code | 826 |
| Other relevant codes | UHSLC 221 |
| Additional information | |
| Other relevant information | Values based on GPS have been observed but not finally calculated. |
| Nearest Met. station | Cape Town |
| Last updated | 2002-12-11 |
