QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 10 Apr 2019 Station : Rikitea Latitude: 23 07.5S Country : French Polynesia Longitude: 134 57.2W JASL # : 016A Time Meridian: 135W (GMT - 9 hr) GLOSS # : 138 TOGA #: P068 NODC #: 52133401 Contributor : UH Sea Level Center 1000 Pope Rd. MSB 317 Honolulu, Hawaii 96822 Originator : 1) SHOM (FRANCE) (1969-6/1975) 2) Dept. of Oceanography (6/1975-end) University of Hawaii 1000 Pope Rd. MSB 317 Honolulu, Hawaii 96822 Original Data: analog (BUB), digital (ADR,RAD,PRS) Instrmnt Type: 1. Bristol Bubbler (BUB) (1969-6/1975); 2. Fischer and Porter Analog-to-Digital Recorder (ADR) (6/1975-9/2007) 3. (9/2007- ) Radar (RAD) gauge (Vega Vegapuls 62) 4. (9/2007- ) pressure transducer (PRS) Primary channel used in JASL set: 1969-6/1975: BUB 6/1975-9/2007: ADR (SDR, satellite-received) 9/2007-2018: RAD *short gaps in primary channel filled with other channels as available; see UHSLC for specific dates Digitzd Intvl: hourly (BUB), 15 minutes (ADR), 2 min (RAD and PRS) Present Data : Hourly, daily, and monthly values obtained by: Hourly : (pre-1987) Nine-point triangular filter centered on the hour with respective periods of the 95, 50, and 5% amplitude point of the filter response at 623.6, 177.0, and 103.7 minutes;(1987+) three-point Hanning filter centered on the hour 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 : 05 Oct 1969 - 31 Dec 2018 Gaps > 1 mon : 13 May - 26 Oct 1973;10 Jan - 10 May 1975; 25 Nov - 27 Dec 1980;02 Apr - 04 Jul 1996; 14 Sep 1996 - 23 Apr 1997;24 Dec 1999 - 28 Feb 2000 24 Nov 2000 - 08 Mar 2001 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1969-2018 Refernce Levl: Heights are referred to the station tide staff zero, which is linked to land-based benchmarks. This reference zero is unique to this station and is not an official datum (chart, national, etc.) and is not relative to local tidal parameters, such as mean lower low water. See the Originators for benchmark descriptions, maps, and the geodetic levelling history. The BUB data from 1969-6/1975 are linked to the ADR data (and the tide staff zero) using a month over- lap in the two series. Comment : The daily and monthly means reveal no apparent changes in the reference level. During 2003-9/2007, data were missing around the higher high tides. The missing data flags for the short gaps are left in the time series during this time span. The JASL update of 10 Apr 2019 replaces 01 Jan 2016 - 05 Sep 2017. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1969 24 none (09)312-(08)313 none 1970 99 55-56,81-82,155-156 (06)121-(16)121 56-74,205-206 1971 99 189-191,359-360 (09)244-(17)244 none (04)288-(14)288 1972 99 103-104,145-147, (17)058-(16)059 161-233,307,323 190-191 (23)276-(09)277 1973 55 133-299 (09)088-(08)089 163 1974 98 277-278,287-293, (20)102-(19)103 none 312-313 (21)146-(16)147 (23)268-(18)269 (20)355-(08)356 1975 67 10-130 (09)144-(16)144 none 1976 98 3-5,201-204 none none 1977 99 268-270 none none 1978 100 none none none 1979 92 35-36,39-41, none none 306-310,324-332, 344-349,357-360 1980 82 20-23,186-198, none none 242-256,330-362 1981 89 17-19,153-178, none none 353-365 1982 91 1-28,328-331 none none 1983 99 361-363 none none 1984 100 none none none 1985 100 none none none 1986 100 none none none 1987 100 none none none 1988 99 202-204 none none 1989 99 182-186 none none 1990 100 none none none 1991 100 none none none 1992 100 none none none 1993 100 none none none 1994 99 291-293 none none 1995 99 332-337 none none 1996 41 57-81,93-186,267-365 (02)003-(21)003 none (05)207-(17)207 (03)266-(17)266 1997 69 1-113 none none 1998 99 306-308 none none 1999 98 358-365 none none 2000 69 1-59,172-180,241-251 (02)165-(16)165 none 329-366 2001 80 1-67,145-149,213-215 (04)087-(17)087 none (01)177-(20)177 (06)239-(19)239 2002 98 169-170,244-245, none none 337-341 2003 98 see comment above none none 2004 99 see comment above none none 2005 93 see comment above none none 2006 96 see comment above none none 2007 98 see comment above none none 269-273 2008 100 none none none 2009 100 none none none 2010 100 none (01)252-(23)252 none (13)332-(23)332 2011 100 none (11)181-(18)181 none 2012 100 none none none 2013 100 none (13)174-(23)174 none 2014 100 none none none 2015 100 none (03)265-(15)265 none (02)288-(14)288 (03)289-(17)289 (01)290-(17)290 (05)291-(16)291 (06)292-(15)292 (08)346-(15)346 (08)359-(15)359 (05)001-(15)001 2016 99 67-69,72-73,83-84 (02)002-(16)002 none (02)003-(16)003 (03)004-(16)004 (02)005-(17)005 (03)006-(18)006 (02)007-(16)007 (03)008-(18)008 (00)009-(18)009 (03)010-(22)010 (03)011-(15)011 (03)012-(15)012 (03)013-(15)013 (02)014-(16)014 (03)015-(19)015 (00)016-(18)016 (03)017-(17)017 (03)018-(18)018 (02)019-(20)019 (02)020-(19)020 (03)021-(16)021 (02)022-(16)022 (02)023-(15)023 (03)024-(15)024 (03)025-(16)025 (02)026-(17)026 (03)027-(16)027 (03)028-(16)028 (23)028-(16)029 (03)030-(15)030 (02)031-(16)031 (02)032-(17)032 (02)033-(18)033 (02)034-(16)034 (02)035-(16)035 (02)036-(16)036 (02)037-(16)037 (02)038-(16)038 (02)039-(22)039 (02)040-(16)040 (02)041-(16)041 (01)042-(17)042 (01)043-(15)043 (02)044-(16)044 (00)045-(16)045 (01)046-(16)046 (01)047-(16)047 (01)048-(17)048 (01)049-(16)049 (01)050-(16)050 (22)050-(18)051 (01)052-(16)052 (23)052-(16)053 (01)054-(17)054 (01)055-(16)055 (00)056-(18)056 (22)056-(16)057 (22)057-(16)058 (23)058-(17)059 (00)060-(16)060 (00)061-(22)061 (00)062-(17)062 (00)063-(17)063 (22)063-(17)064 (00)065-(17)065 (00)066-(17)066 (00)067-(17)067 (00)070-(17)070 (00)071-(17)071 (20)071-(18)072 (23)073-(17)074 (00)075-(18)075 (23)075-(16)076 (23)076-(19)077 (23)077-(17)078 (00)079-(17)079 (23)079-(17)080 (01)081-(17)081 (00)082-(18)082 2017 100 none none none 2018 100 none (21)233-(13)234 none