Data
- Obtaining
- Supplying
- High-Frequency
- Bottom Pressure Records
- Other Long Records
- GLOSS/ODINAFRICA Calibration Data
Data Notes
- Individual Station Data and Plot Notes
- Referencing the Data Set
- PSMSL Help File
- 2010 Changes to the PSMSL Data Files
Extracted from Database
04 Nov 2019
WARNING: QCFLAG EXISTS. PLEASE READ THE DOCUMENTATION.
Station Information
| Station ID: | 950 |
| Latitude: | -34.049444 |
| Longitude: | 23.045556 |
| Coastline code: | 430 |
| Station code: | 86 |
| Country: | SOUTH AFRICA |
| Time span of data: | 1960 – 2018 |
| Completeness (%): | 72 |
| Date of last update: | 30 Oct 2019 |
| Green Arrow: | Current Station |
| Yellow Marker: | Neighbouring RLR Station |
| Red Marker: | Neighbouring Metric Station |
Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.
Tide Gauge Data
Station Documentation
Link to RLR information.Documentation added 1991-06-11
Knysna 430/086 RLR(1964) is 9.7m below BM SAN1Documentation added 1996-08-28
For discussions of MSL changes and extreme sea levels around Namibia and South Africa, see: G.B.Brundrit, S.Afr.J.Mar.Sci.,16,9-17,1995 and S.Searson and G.B.Brundrit, S.Afr.J.of Science, 91,579-588,1995. 1960 - 1972 VALUES BASED ON 8 READINGS PER DAYDocumentation added 2006-11-28
Station flagged data generally suspect. Large spike in dataset Nov/Dec 2002 values very suspect.Documentation added 2009-09-24
Heights of chart datum relative to land levelling datum in South Africa and Namibia: Knysna Datum: up to 31st Dec 1978 = -0.625 Datum: 1st Jan 1979 - 31st Dec 1997 = -0.900 Datum: 1st Jan 1998 - 31st Dec 2002 = -1.048 Datum: 1st Jan 2003 onwards = -0.788 Datum is now LAT so unlikely to change.Documentation added 2010-05-11
There appears to be a spike in Nov/Dec 2002 see above. This is possibly real as it appears in several of the S. African stations.Data Authority
Hydrographic OfficeMaritime Headquarters
Private Bag X1
Tokai 7966
