Tristan da Cunha - C Site History
History Summary
| Station Name | Tristan - C |
|---|---|
| Time Reference | GMT (00-23 Hours) |
| Units | dbars |
| Sample Interval | Hourly |
| Contributors | Proudman Oceanographic Laboratory,
Joseph Proudman Building, Liverpool. U.K. |
| Instrument Type | Paroscientific Digiquartz pressure
transducer with temperature recorded. |
Instrument Positions
| Observational Period | Latitude | Longitude | Depth(m) |
|---|---|---|---|
| 02Nov1985 - 30Sep1986 | 38° 31.00' S | 011° 09.00' W | 3435 |
| 21Oct9186 - 24Sep1987 | 38° 31.00' S | 011° 09.00' W | 3120 |
These data form part of the 'Tristan Triangle Experiment' around Tristan da Cunha which consisted of a series of Bottom Pressure Recorder measurements made in a 'triangle' (sites A, B and C) around the island between 1985-88 (Spencer et al.). Bottom pressure at all three sites was found to be coherent (Hughes and Smithson, 1996)
Quality Assessment
Mean and Long-term drift has been removed from the data. Depths given are approximate.
| Period | Comments |
|---|---|
| Nov 1985 - Sep 1986 | Contributor recommends use of either pressure
channel 1 or pressure channel 3. |
| Oct 1986 - Sep 1987 | Contributor recommend use of either prssure channel 2
or pressure channel 3. Pressure channel 2 marked: (1986)294-(1987)100 Pressure channel 3 marked: (1986)294-297 |
References
Spencer, R. et al.
The ACCLAIM programme in the South Atlantic and Southern Oceans. International Hydrographic Review, 70, 7-21.
Hughes, C.W. and Smithson, M.J. 1996.
Bottom pressure correlations in the South Atlantic. Geophysical Research Letters, 23(17), 2243-2246.
