Crozet Islands (France) Site History
History Summary
| Station name | Crozet Is. |
|---|---|
| Country | France |
| Latitude | 46° 25.5' S |
| Longitude | 051° 52.2' E |
| GLOSS No. | 21 |
| Time Reference | GMT (00-23 hours) |
| Contributor | Institute Mechanique de Grenoble
Domaine Universitaire B.P. No.53X 38041 Grenoble Cedex FRANCE |
| Originator | Same |
| Instrument Type | MORS Bottom mounted pressure sensor |
| Site of Gauge | The tide gauge is installed in the Baie du Navire,
Possession Island, in the Crozet archipielago, nearby the Alfred Faure French scientific base. |
| Observational Periods | 1993 - 1994
18 November 1995 - present |
Datum of the pressure measurements is not maintained from one deployment to the next.
Quality Assessment
Comment
Pressure transducers typically have long-term tendencies to drift. However, the originators have calibrated the instrument before deployment and due to the shallow resting level of about 2.3 m at high tide, the potential drift would be very small. Post-retrieval calibrations have not been performed. Please refer to the originators for the up-to-date status. For this data set, no explicit correction has been applied in this regards.
The plot of the hourly data minus the predicted tides reveals data with excellent timing characteristics and no obviously erroneous data.
| Period | Comments |
|---|---|
| June 93 - October 94 | None |
| Year | Completeness
Index (%) |
Questionable Fluctuations(in day Nos.)
and Missing Data (Gaps > 6 hours) |
|---|---|---|
| 1995 | 12 | None |
| 1996 | 95 | None |
| Gap from 1996/08/06 at 07.00 to 1996/08/20 at 12.00 | ||
| Gap from 1996/11/10 at 00.00 to 1996/11/12 at 09.00 | ||
| 1997 | 13 | None |
| Gap from 1997/02/18 at 10.00 to 1997/12/31 at 23.00 |
