QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 28 Dec 2017 Station : Hiva Oa-B Latitude: 09 48.3S Country : French Polynesia Longitude: 139 02.1W JASL # : 017B Time Meridian: 142.5W (GMT - 9.5) GLOSS # : none Originator #: 017 NODC #: 50139901 Contributor : UH Sea Level Center 1000 Pope Rd. MSB 317 Honolulu, Hawaii 96822 Originator : Dept. of Oceanography University of Hawaii 1000 Pope Rd. MSB 317 Honolulu, Hawaii 96822 Original Data: digital Instrmnt Type: Pressure transducer (PR2) Digitzd Intvl: 3 second samples averaged every 2 min Present Data : Hourly, daily, and monthly values obtained by: Hourly : 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 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 Sep 2010 - 05 Sep 2017 Gaps > 1 mon : none Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : No Operational : No Sat. Trans. : No Distribution : 2010-2017 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. There are no tide staff readings or switch data to calibrate the data to tide staff zero. The comparison with AVISO altimetry suggests a stable reference level. Comment : Timing quality is good. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 2010 32 none (13)332-(00)333 none 2011 100 none (11)181-(18)181 none (15)239-(02)240 (10)240-(18)240 2012 100 none none none 2013 100 none (00)065-(07)065 none (12)174-(00)175 (00)235-(08)235 2014 100 none none none 2015 84 291-292,294-295,297- (10)196-(17)196 none 299,302-304,308-309, (08)208-(17)208 312-314,319-344, (09)209-(17)209 346-365 (08)210-(17)210 (07)211-(17)211 (08)215-(17)215 (09)216-(17)216 (08)217-(17)217 (06)218-(17)218 (07)219-(18)219 (07)220-(17)220 (08)221-(17)221 (09)224-(17)224 (10)225-(17)225 (06)226-(17)226 (06)227-(17)227 (08)228-(16)228 (08)230-(18)230 (06)231-(17)231 (06)232-(17)232 (06)233-(17)233 (05)234-(17)234 (10)235-(18)235 (07)236-(18)236 (06)237-(18)237 (04)238-(18)238 (05)239-(17)239 (07)240-(17)240 (06)241-(17)241 (05)242-(17)242 (05)243-(17)243 (04)244-(17)244 (05)245-(17)245 (05)246-(18)246 (04)247-(17)247 (05)248-(19)248 (05)249-(17)249 (05)250-(17)250 (05)251-(17)251 (05)252-(17)252 (05)253-(17)253 (04)254-(17)254 (05)255-(17)255 (04)256-(17)256 (04)257-(17)257 (04)258-(17)258 (04)259-(18)259 (04)260-(18)260 (03)261-(17)261 (04)262-(17)262 (03)263-(17)263 (04)264-(17)264 (02)265-(17)265 (03)266-(17)266 (01)267-(18)267 (02)268-(17)268 (02)269-(17)269 (03)270-(17)270 (03)271-(17)271 (21)271-(18)272 (02)273-(18)273 (02)274-(18)274 (02)275-(19)275 (02)276-(18)276 (01)277-(19)277 (02)278-(17)278 (02)279-(19)279 (02)280-(17)280 (02)281-(18)281 (02)282-(19)282 (01)283-(17)283 (01)284-(18)284 (02)285-(18)285 (02)286-(17)286 (02)287-(17)287 (01)288-(22)288 (01)289-(18)289 (00)290-(18)290 (01)293-(18)293 (01)296-(18)296 (01)300-(18)300 (01)301-(18)301 (22)301-(19)302 (02)304-(18)304 (02)305-(18)305 (01)306-(21)306 (02)307-(18)307 (02)310-(18)310 (02)311-(18)311 (02)315-(22)315 (02)316-(18)316 (02)317-(18)317 (20)317-(18)318 (01)345-(22)345 2016 99 1-6 (05)058-(15)058 none 2017 68 none none none