QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 18 Aug 2020 Station : Napier Latitude: 39 29.0S Country : New Zealand Longitude: 176 55.0E JASL # : 668A Time Meridian: 180E (GMT + 12 hr) GLOSS # : none Originator #: 097 NODC #: 33179601 Contributor : Land Information New Zealand Lambton House 160 Lambton Quay PO Box 5501 Wellington, New Zealand Originator : local port authority Original Data: digital Instrmnt Type: unconfirmed Digitzd Intvl: operator selective, normally 5 minutes Present Data : Hourly, daily, and monthly values obtained by: Hourly : manual extraction of hourlies from digital record 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 1989 - 31 Dec 2019 Gaps > 1 mon : 31 Dec 1994 - 31 Oct 1998 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1989-2019 Refernce Levl: The sea level heights are referred to the Tide Gauge Zero (TGZ): TGZ is 4.837 m below B.M. H 40 (LINZ code B3XM), a stainless steel pin set in concrete block under iron cover near the SW corner of Port of Napier Ltd office at railway crossing. Comment : The daily and monthly values do not show any obvious shifts or trends. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1989 96 41-43,196-197,220- (20)045-(04)046 none 223,290-291,334-341 (12)047-(11)048 (05)073-(20)073 (12)086-(21)086 (12)150-(11)151 (12)233-(04)234 (12)234-(20)234 (12)235-(20)235 (12)236-(20)236 (12)239-(20)239 (12)263-(01)264 (13)310-(20)310 (12)354-(20)354 1990 95 89-91,112-119,159- (12)097-(11)098 none 161,178-179,231-232, (05)136-(03)137 287-288 (12)148-(03)149 (12)158-(20)158 (21)182-(20)183 (05)248-(23)248 (05)253-(22)253 1991 94 4-7,36-37,97-99,123- (12)209-(20)209 none 125,153-154,167-168, (12)223-(20)223 192-193,233-241 (12)225-(20)225 (13)246-(20)246 (13)248-(21)248 (12)251-(00)252 (12)266-(20)266 (12)267-(20)267 (12)268-(20)268 (12)304-(19)304 1992 95 25-26,43-44,58-61, (12)056-(11)057 none 84-86,123-124,262- (13)202-(20)202 264,269-271,353-355 (12)207-(11)208 (05)219-(01)220 (12)243-(20)243 (12)268-(20)268 (12)280-(19)280 (12)350-(21)350 1993 95 31-32,86-87,112-116, (10)035-(19)035 none 183-185,290-298, (20)041-(03)042 363-364 (13)079-(21)079 (11)080-(20)080 (14)224-(04)225 (12)259-(03)260 (19)265-(10)266 (12)276-(11)277 (23)001-(09)002 1994 94 21-25,30-38,116-117, (00)004-(09)004 none 125-128,148-149,210- (03)005-(15)005 212,245-247,365 (22)007-(13)008 (19)010-(08)011 (07)014-(00)015 (01)018-(14)018 (01)019-(23)019 (12)020-(11)021 (00)029-(14)029 (19)029-(02)030 (02)039-(12)039 (00)040-(12)040 (00)041-(15)041 (12)208-(20)208 (12)265-(11)266 1995 0 1-365 none none 1996 0 1-366 none none 1997 0 1-365 none none 1998 16 1-304,320-321 none none 1999 99 16-17,25-27,317-318 (07)007-(19)007 none (01)009-(13)009 (03)068-(13)068 (12)208-(00)209 (00)220-(20)220 (22)278-(07)279 2000 95 47-49,98-100,201- (19)034-(03)035 none 202,269-270,307-308, (05)107-(00)108 321-324,330-331,337- (03)137-(01)138 338,344-346,358-360, (10)138-(21)138 363-364 (01)139-(22)139 (03)188-(21)188 (11)202-(19)202 (06)228-(03)229 (06)244-(23)244 (04)282-(20)282 (23)288-(20)289 (03)296-(02)297 (03)303-(19)303 (09)312-(21)312 (19)316-(18)317 (01)341-(19)341 (05)366-(04)001 2001 97 6-7,9-10,12-14,19- (03)015-(20)015 none 21,27-28,46-49 (20)041-(19)042 (23)055-(18)056 (19)081-(17)082 (01)227-(15)227 2002 98 92-94,184-186, (12)037-(23)037 none 310-313 (00)126-(10)126 (04)260-(23)260 2003 98 228-230,276-281 (02)023-(11)023 none 2004 100 none none none 2005 99 75-77,116-117, (23)049-(06)050 none 323-325 (06)166-(01)167 (03)292-(19)292 2006 99 51-54,184-185 none none 2007 100 none (03)336-(22)336 none 2008 100 none none none 2009 100 none none none 2010 100 none none none 2011 99 309-310 (10)101-(21)101 none 2012 100 none none none 2013 99 347-348 none none 2014 100 none none none 2015 100 none (02)308-(18)308 none 2016 99 305-306 none none 2017 99 133-135 (12)285-(19)285 none 2018 100 none none none 2019 99 365 none none