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