QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 30 Oct 2000 Station : Esperance Latitude: 33 52.0S Country : Australia Longitude: 121 54.0E JASL # : 176A Time Meridian: 120E (GMT + 8 hr) GLOSS # : 054 TOGA #: none NODC #: 33123101 Contributor : The National Tidal Facility Flinders University of South Australia GPO Box 2100 Adelaide, 5001, South Australia AUSTRALIA Originator : same Original Data: Digital Instrmnt Type: Aquatrak acoustic gauge with SUTRON data logger Digitzd Intvl: 6 minute Present Data : Hourly, daily, and monthly values obtained by: Hourly : low-passed filtered with a cut-off of 2 hr Daily : 119-point convolution filter (Bloomfield, 1976) centered on noon applied to the hourly data with respective periods of the 95, 50, and 5% amplitude points at 124.0, 60.2, and 40.2 hours Monthly: Simple average of all daily values; calculated if 7 or fewer days are missing Span of data : 01 Jan 1985 - 31 Dec 1999 Gaps > 1 mon : none Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 1985-1999 Refernce Levl: The sea level heights are referred to the zero point assigned to the tide staff. Bench mark information is available upon request from the contributors. The primary Tide Gauge Benchmark is a PWD brass plaque stamped 'TIDAL BM 1972', set in concrete deck at the NW end of No. 1 Berth. Comment : The data are of good quality. SPECIAL NOTE FROM THE DATA CONTRIBUTORS: Supply of sea level data subject to the following conditions: i) When any data supplied by the National Tidal Facility is used in any publication or report, the origin of such data shall be acknowledged in that publication or report in the following approved form:-- "Tidal {predictions) for {port} {are} supplied {constants} {station} {is} {material} {...} by the National Tidal Facility, The Flinders University of South Australia, Copyright reserved." ii) All material is supplied in good faith and is believed to be correct. It is supplied on the condition that no warranty is given in relation thereto, that no responsibility or liability for errors or omissions is, or will be, accepted and that the recipient will hold the Flinders Univer- sity of South Australia and the National Tidal Facility free from all such responsibility or liability and from all loss or damage incurred as a consequence of any error or omission. iii) The acceptance of material and computations from the National Tidal Facility of the Flinders University of South Australia will be deemed to include acceptance of the conditions of supply. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1985 100 none (01)128-(23)128 none (02)301-(23)301 1986 98 178-181,318-321 none none 1987 100 none none none 1988 99 80-82 (00)068-(23)068 none 1989 100 none none none 1990 99 159-162 none none 1991 99 211-214 none none 1992 100 none none none 1993 100 none none none 1994 100 none none none 1995 100 none none none 1996 100 none none none 1997 99 281-282 none none 1998 92 47-51,251-274, (00)073-(23)073 none 313-315 1999 100 none none none