Walvis Bay (Namibia) Site History

History Summary

Station Walvis Bay
Country Namibia
Gloss No 314
Latitude 022° 57.0' S
Longitude 014° 30.0' E
Time Meridian 030° E (GMT +2 hr)
Contributor University of Cape town,
Department of Oceanography,
Rondebosch 7701, RSA.
Originator Hydrographic Office,
South African Navy,
Private Bag X1,
Tokai 7966, RSA.
Instrument Type OTT float-type gauge
EMATEK acoustic Automatic Water Level Recorder (AWLR)
Observational Periods 19 August 1991 - 31 December 1995 OTT float-type
10 January 1995 - 31 December 1998 AWLR

Tide Gauge Benchmark (TGBM) Description

Unavailable at present

Quality Assessment

Comments

Years marked with '*' listed below refer to data from the AWLR, else data recorded by the OTT float gauge.

Possible datum shift - 1993 05 10 +70cm
Possible datum shift - 1993 12 02 -30cm

Most questionable fluctuations are related to timing errors of the gauge.

Year Completeness
Index (%)
Questionable Fluctuations (In day Nos) and
Missing Data (Gaps >6 hours)
1991 36 None
Gap From 1991/09/21 at 02.00 to 1991/09/21 at 12.00
Gap From 1991/10/23 at 22.00 to 1991/10/24 at 07.00
Gap From 1991/11/21 at 13.00 to 1991/11/22 at 17.00
1992 88 127-135,183-188
Gap From 1992/01/17 at 03.00 to 1992/01/19 at 15.00
Gap From 1992/02/15 at 08.00 to 1992/02/15 at 21.00
Gap From 1992/03/13 at 17.00 to 1992/04/09 at 11.00
Gap From 1992/05/06 at 05.00 to 1992/05/06 at 15.00
Gap From 1992/06/03 at 05.00 to 1992/06/03 at 21.00
Gap From 1992/07/27 at 02.00 to 1992/07/27 at 16.00
Gap From 1992/08/23 at 09.00 to 1992/08/23 at 15.00
Gap From 1992/09/18 at 11.00 to 1992/09/18 at 17.00
Gap From 1992/12/06 at 15.00 to 1992/12/06 at 21.00
Gap From 1992/12/20 at 22.00 to 1992/12/31 at 21.00
1993 52 035,078-092,139-140,316-319
Gap From 1993/02/04 at 07.00 to 1993/02/04 at 18.00
Gap From 1993/03/04 at 03.00 to 1993/03/05 at 17.00
Gap From 1993/04/11 at 18.00 to 1993/05/10 at 07.00
Gap From 1993/05/18 at 22.00 to 1993/05/19 at 10.00
Gap From 1993/05/20 at 18.00 to 1993/05/21 at 10.00
Gap From 1993/06/17 at 22.00 to 1993/06/22 at 04.00
Gap From 1993/06/24 at 15.00 to 1993/06/25 at 04.00
Gap From 1993/07/04 at 22.00 to 1993/07/05 at 08.00
Gap From 1993/07/25 at 18.00 to 1993/07/26 at 06.00
Gap From 1993/08/01 at 18.00 to 1993/11/12 at 06.00
Gap From 1993/11/15 at 14.00 to 1993/11/15 at 21.00
Gap From 1993/12/07 at 22.00 to 1993/12/08 at 13.00
1994 25 209-236
Gap From 1994/01/04 at 17.00 to 1994/07/27 at 21.00
Gap From 1994/08/24 at 09.00 to 1994/09/05 at 12.00
Gap From 1994/09/30 at 22.00 to 1994/11/14 at 12.00
Gap From 1994/12/12 at 22.00 to 1994/12/22 at 13.00
Gap From 1994/12/31 at 15.00 to 1994/12/31 at 21.00
1995 75 016-027,043-057,076-079,104-113,148-252,280-285,338-350
Gap From 1995/01/27 at 17.00 to 1995/01/29 at 17.00
Gap From 1995/02/26 at 04.00 to 1995/03/03 at 11.00
Gap From 1995/03/06 at 22.00 to 1995/03/17 at 15.00
Gap From 1995/03/20 at 07.00 to 1995/04/14 at 08.00
Gap From 1995/04/18 at 00.00 to 1995/04/18 at 15.00
Gap From 1995/04/19 at 20.00 to 1995/04/20 at 14.00
Gap From 1995/04/21 at 17.00 to 1995/04/22 at 05.00
Gap From 1995/05/12 at 02.00 to 1995/05/28 at 11.00
Gap From 1995/06/10 at 16.00 to 1995/06/16 at 13.00
Gap From 1995/06/16 at 22.00 to 1995/06/17 at 21.00
Gap From 1995/07/15 at 07.00 to 1995/07/18 at 15.00
Gap From 1995/08/15 at 08.00 to 1995/08/17 at 04.00
Gap From 1995/08/28 at 18.00 to 1995/08/29 at 05.00
Gap From 1995/09/09 at 22.00 to 1995/09/10 at 21.00
Gap From 1995/09/13 at 12.00 to 1995/09/15 at 08.00
Gap From 1995/09/23 at 02.00 to 1995/09/23 at 15.00
Gap From 1995/10/12 at 22.00 to 1995/10/16 at 06.00
Gap From 1995/10/23 at 21.00 to 1995/10/28 at 05.00
Gap From 1995/11/17 at 05.00 to 1995/11/18 at 14.00
Gap From 1995/12/02 at 22.00 to 1995/12/04 at 08.00
Gap From 1995/12/16 at 16.00 to 1995/12/17 at 14.00
1995* 73 None
Gap From 1995/01/16 at 03.00 to 1995/03/01 at 07.00
Gap From 1995/03/26 at 14.00 to 1995/03/27 at 01.00
Gap From 1995/04/03 at 20.00 to 1995/04/04 at 07.00
Gap From 1995/06/01 at 02.00 to 1995/07/01 at 01.00
Gap From 1995/07/30 at 20.00 to 1995/08/01 at 01.00
Gap From 1995/10/16 at 02.00 to 1995/10/16 at 13.00
Gap From 1995/10/21 at 02.00 to 1995/10/21 at 12.00
Gap From 1995/12/18 at 07.00 to 1995/12/29 at 00.00
1996* 88 None
Gap From 1996/02/26 at 13.00 to 1996/02/27 at 00.00
Gap From 1996/04/09 at 19.00 to 1996/04/15 at 18.00
Gap From 1996/05/27 at 13.00 to 1996/05/28 at 00.00
Gap From 1996/06/06 at 13.00 to 1996/06/07 at 06.00
Gap From 1996/06/13 at 12.00 to 1996/06/20 at 09.00
Gap From 1996/06/20 at 11.00 to 1996/06/20 at 18.00
Gap From 1996/06/25 at 10.00 to 1996/06/27 at 17.00
Gap From 1996/07/07 at 06.00 to 1996/07/07 at 13.00
Gap From 1996/08/08 at 20.00 to 1996/09/03 at 13.00
Gap From 1996/09/16 at 02.00 to 1996/09/16 at 19.00
1997* 65 365
Gap From 1997/01/28 at 06.00 to 1997/01/29 at 13.00
Gap From 1997/07/09 at 20.00 to 1997/07/10 at 07.00
Gap From 1997/07/15 at 16.00 to 1997/11/17 at 12.00
1998* 68 26,207-208
Gap From 1998/02/02 at 07.00 to 1998/02/24 at 09.00
Gap From 1998/03/16 at 16.00 to 1998/03/17 at 03.00
Gap From 1998/04/16 at 04.00 to 1998/05/08 at 07.00
Gap From 1998/05/25 at 02.00 to 1998/05/27 at 07.00
Gap From 1998/08/03 at 02.00 to 1998/08/03 at 13.00
Gap From 1998/10/05 at 02.00 to 1998/10/07 at 16.00
Gap From 1998/11/09 at 05.00 to 1998/11/15 at 22.00
Gap From 1998/11/23 at 11.00 to 1998/12/31 at 21.00