Diego Garcia-D (UK) Site History
History Summary
| Station | Diego Garcia-D |
|---|---|
| Country | United Kingdom |
| Latitude | 07° 17.4' S |
| Longitude | 072° 23.6' E |
| GLOSS No | 026 |
| Time Reference | GMT (hours 00-23) |
| Contributor | 1992-present NOAA/NOS |
| Instrument Type | (1992-present) Next Generation Water Level Measurement System - acoustic sensor |
| Site of Gauge | The gauge is situated next to the deep draft wharf. |
| Observational Period | 1992-present |
Reference Level
For the NGWLMS, all heights are referred to a datum zero which is linked to fixed benchmarks.
Benchmarks
| Benchmark | Description |
|---|---|
| BM-D (TGBM) | This is a NOS bench mark stamped "1000 D 1990", set in a concrete pad supporting ten electrical switch panels.It is 180 feet southwest of the wharf face (established 1990). |
| BM-A (Auxiliary) | established 1990 |
| BM-B (Auxiliary) | established 1990 |
| BM-C (Auxiliary) | established 1990 |
| BM-H (Auxiliary) | established 1991 |
| BM-J (Auxiliary) | established 1991 |
Quality Assessment
Comments
Data from Diego Garcia-C are maintained in a separate record because these series are not linked to the same tide staff zero.
Timing errors are evident in the hourly data.
| Year | CI(%) | QI(%) | Missing Data | Replaced Gaps or Bad Data | Questionable Fluctuations |
|---|---|---|---|---|---|
| 1992 | 81 | 81 | none | none | none |
| 1993 | 100 | 100 | none | none | none |
| 1994 | 79 | 79 | 033-108 | none | none |
| 1995 | 88 | 88 | 023-030,131-140,254-260,274-292 | none | none |
| 1996 | 21 | 21 | 001-015,028-098,138-141,162-366 | none | none |
| 1997 | 87 | 87 | 1,11-18,180-182,225-231,299-307,320-335,349-363 | none | none |
| 1998 | 29 | 29 | 019-025,039-060,075-083,102-115,130-173,195-365 | none | none |
