St Helena (Atlantic Ocean) Phase 1 Site History

History Summary

Station Name St Helena Phase 1
Latitude 15° 58.0' S
Longitude 005° 42.0' W
Country U.K.
Gloss No 264
Time Reference GMT(00-23 hours)
Contributor Proudman Oceanographic Laboratory,
Joseph Proudman Building,
6 Brownlow Street,
Liverpool,
L3 5DA. U.K.
Observation Period Aug 1986 - Oct 1992
Instrument Type Digiquartz pressure sensor and barometer transmitting by satellite.
Site of Gauge Jamestown Harbour steps, St Helena.
Please Note: These data should not be confused with the St Helena Phase 2 data.
There are no links between these two data sets.

Datum information is not available.

PLEASE NOTE: Datum can drift WITHIN AND BETWEEN files.

Parameters Recorded

Period CI(%) Parameters Sample Interval
08 1986 - 11 1987 99.4 AP,SP,SSP 60 mins
11 1987 - 02 1988 100 SSP 60 mins
05 1988 - 02 1989 99.9 SP,SSP 60 mins
02 1989 - 01 1990 100 SSP 60 mins
02 1990 - 09 1990 100 SSP 60 mins
09 1990 - 02 1992 100 AP,SSP 60 mins
02 1992 - 10 1992 100 AP,SP,SSP 60 mins

where:

Quality Assessment

All data have been tidally analysed and constants and residuals checked. Records have been visually inspected for spikes and timing shifts.

Period Parameters Comments
08 1986 - 11 1987 SP Gap: (1986) 328-329, (1987) 148-149,244-245
AP Gap: (1986) 328-329, (1987) 148-149,244-245
Questionable Fluctuations: None
11 1987 - 02 1988 SSP None
05 1988 - 02 1989 SP Gap: (1988) 151
SSP Marked: (1988) 151
Questionable Fluctuations: None
02 1989 - 01 1990 SSP None
02 1990 - 09 1990 SSP None
09 1990 - 02 1992 AP Gap: (1991) 033-036,091-092,344-345
02 1992 - 10 1992 All None