Prudhoe Bay (Alaska, USA) Site History
History Summary
| Station Name | Prudhoe Bay, Alaska |
|---|---|
| Country | U.S.A. |
| Latitude | 70° 24.0' N |
| Longitude | 148° 31.6' W |
| GLOSS No. | |
| Time Reference | GMT (00-23 hours) |
| Contributor | 1992-2000 NOAA/NOS, USA |
| Instrument Type | (1992-2000) Next Generation Water Level Measurement System - acoustic sensor |
| Site of Gauge | The tide gauge is located in the west reservoir room of the seawater treatment plant operated by ARCO at the end of the causeway. |
| Observational Periods | 1992-1993, 1995-2000 |
Please note that the position information has been altered in this document - see document 83916
Reference Level
All data are referred to Tide Gauge Zero and are linked into historic fixed benchmarks.
Tide Gauge Benchmark (TGBM) Description
BM Cell 4B is the center point of a triangular shaped steel connecting pin of circular sheet pile at southwest corner of ARCO's seawater treatment plant. It is 36.7' southwest of BM Cell 5B.
Auxiliary Benchmarks
BM Cell 5B
BM Cell 6B
BM TMB Deadman
BM Steel Pin
BM SW Rail (1990)
BM Bridge (1993)
Quality Assessment
Comments
The daily or monthly means do not reveal any obvious reference level shifts.
The data for 1995-2000 were supplied with heights relative to MLLW. Consequently 10918mm was added to refer the data to tide gauge zero.
The data for 1998-2000 were supplied in non-GMT format and had to be shifted into GMT.
| Year | Completeness Index (%) | Questionable Fluctuations (in day Nos.) and Missing Data (Gaps > 6 hours) |
|---|---|---|
| 1992 | 91 | None Gap From 1992/06/13 at 22.00 to 1992/06/25 at 09.00 Gap From 1992/10/13 at 00.00 to 1992/10/29 at 15.00 Gap From 1992/11/07 at 18.00 to 1992/11/09 at 17.00 |
| 1993 | 96 | None Gap From 1993/06/13 at 00.00 to 1993/06/27 at 13.00 |
| 1995 | 100 | None |
| 1996 | 100 | None |
| 1997 | 100 | None |
| 1998 | 100 | 212,226-229,244,258-259,273-274,286-288,302-303 |
| 1999 | 100 | 229-233,246-249 |
| 2000 | 100 | 223-225,267 |
