Little Cornwallis Island (Canada) Site History
History Summary
| Station | Little Cornwallis Island |
|---|---|
| Country | Canada |
| GLOSS No | 153 |
| Latitude | 75° 23.0' N |
| Longitude | 096° 57.0' W |
| Time Meridian | 090° W (GMT -6 hr) |
| Contributor | Marine Environmental Data Service, Dept. of Fisheries and Oceans, S12082-200 Kent St. Ottawa, Ontario, Canada K1A-0E6 |
| Originator | Canadian Hydrographic Service, 876 Lakeshore Road, Burlington, Ontario, Canada L7R-4A6 |
| Instrument Type | Pneumatic bubbler |
| Original Data | Digital |
| Observational Period | 06 November 1986 - 28 September 1994 |
Tide Gauge Benchmark (TGBM) Description
The primary benchmark is BM1 which is the top of a steel bolt holding the NW leg of a skeleton tower to the concrete footing and is located 3m south of the mine entrance and on the north side of a steel storage shed. The data are relative to the chart datum, which is 4.305m below BM1.
Quality Assessment
Comment
With the exception of 1986 (see note below) the data are of good quality.
| Year | Completeness Index (%) | Questionable Fluctuations (In day Nos.) and Missing Data (Gaps >6 hours) |
|---|---|---|
| 1986 | 99.6 | Large periods of timing errors throughout the year. Gap From 1986/12/23 at 2300 to 1986/12/24 at 0800 Gap From 1986/12/24 at 1000 to 1986/12/25 at 0300 Missing data- 1986/12/31 at 1400 to 1987/01/01 at 0500 |
| 1987 | 99 | Gap From 1987/03/30 at 1300 to 1987/03/30 at 2100 Gap From 1987/06/05 at 0200 to 1987/06/05 at 0900 Gap From 1987/07/24 at 0900 to 1987/07/24 at 1700 Gap From 1987/07/25 at 0400 to 1987/07/27 at 0500 Gap From 1987/12/17 at 0200 to 1987/12/17 at 2100 Gap From 1987/12/31 at 0000 to 1987/12/31 at 2100 |
| 1988 | 99 | Gap From 1988/04/16 at 0100 to 1988/04/16 at 2200 Gap From 1988/04/29 at 0000 to 1988/05/01 at 0500 Gap From 1988/11/15 at 2100 to 1988/11/16 at 2100 |
| 1989 | 99 | Gap From 1989/04/06 at 0900 to 1989/04/06 at 1600 Gap From 1989/05/16 at 0500 to 1989/05/16 at 2200 Gap From 1989/08/16 at 1600 to 1989/08/16 at 2200 Gap From 1989/10/13 at 2100 to 1989/10/14 at 2200 |
| 1990 | 99.6 | Gap From 1990/04/30 at 0100 to 1990/04/30 at 2200 Gap From 1990/05/09 at 2300 to 1990/05/10 at 0500 Gap From 1990/06/02 at 0900 to 1990/06/02 at 2100 |
| 1991 | 99.8 | Gap From 1991/09/19 at 1200 to 1991/09/19 at 0400 |
| 1992 | 100 | None |
| 1993 | 100 | None |
| 1994 | 100 | None |
