QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL Updated: 07 Nov 2019 Station : Sibolga-B Latitude: 01 45.0N Country : Indonesia Longitude: 098 46.0E JASL # : 122B Time Meridian: 105E (GMT + 7 hr) GLOSS # : none Originator #: 122 NODC #: 10091801 Contributor : University of Hawaii Sea Level Center (UHSLC) 1000 Pope Rd. MSB 317 Honolulu, HI 96822 Originator : UHSLC in collaboration with BAKOSURTANAL J1. Raya Jakarta Bogar Km 46 P. O. Box 46 Cibinong, Indonesia Original Data: digital Instrmnt Type: 1) radar (RAD) gauge (Vega Vegapuls 62) 2) Handar Encoder 436-A (ENC), float/well 3) pressure transducer (PRS) primary channel: ENC 2005-2018 Digitzd Intvl: 3 min (RAD); 2 min (PRS); 15 min (ENC) Present Data : Hourly, daily, and monthly values obtained by: Hourly : 3-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 : 25 Apr 2005 - 31 Dec 2018 Gaps > 1 mon : 20 May 2010 - 20 Dec 2010 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 2005-2018 Refernce Levl: The sea level heights are referred to the zero point assigned to the tide staff Comment : The series is separate from 122A until a link can be established between the reference levels. The daily values agree well with AVISO altimeter and daily tide gauge data of Sabang, Indonesia. Timing is suspected to be off on order of 15 min 15 May 2016 - 21 Dec 2016. JASL Nov 2019 update replaces 2016- 04 Sep 2017. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 2005 68 175-177,345-347, (18)167-(05)168 none 348-349 (18)196-(12)197 (13)202-(00)203 (20)355-(19)356 2006 100 none (12)023-(03)024 none (12)089-(23)089 (18)288-(08)289 2007 99 43-44 none none 2008 100 none none none 2009 100 none (07)123-(23)123 none 2010 40 133-354 (12)089-(03)090 none (16)112-(00)113 (15)115-(00)116 (16)116-(02)117 (14)117-(00)118 (14)118-(00)119 (13)119-(00)120 (12)120-(01)121 (11)121-(01)122 (13)122-(00)123 (12)123-(01)124 (12)124-(01)125 (11)125-(01)126 (08)126-(03)127 (10)127-(02)128 (07)128-(04)129 (09)129-(05)130 (09)130-(05)131 (07)131-(05)132 (08)132-(06)133 (09)135-(06)136 (09)139-(04)140 2011 99 288-289 (08)181-(18)181 none (21)285-(18)286 (02)288-(10)288 (12)288-(19)288 (01)290-(09)290 (12)290-(05)291 (23)307-(06)308 (20)309-(05)310 (20)340-(04)341 (20)354-(03)355 2012 100 none (03)006-(11)006 none (13)083-(20)083 (21)331-(04)332 (20)350-(03)351 (18)363-(03)364 (16)364-(03)365 (18)365-(01)366 (19)366-(02)001 (17)001-(01)002 2013 100 none (18)002-(03)003 none (19)003-(02)004 (17)004-(03)005 (19)005-(02)006 (18)006-(02)007 (17)007-(01)008 (17)008-(02)009 (18)009-(02)010 (18)010-(01)011 (17)011-(02)012 (18)012-(02)013 (18)013-(01)014 (17)014-(01)015 (18)015-(02)016 (17)016-(00)017 (17)017-(02)018 (17)018-(02)019 (18)019-(01)020 (14)021-(02)022 (14)048-(22)048 (11)072-(23)072 (12)174-(23)174 2014 100 none (11)030-(02)031 none 2015 100 none none none 2016 100 none none 135-355 2017 83 230-234,239-241,245- (10)151-(01)152 none 254,257-268,274-315, (16)152-(02)153 319-322 (15)153-(02)154 (16)154-(02)155 (14)155-(02)156 (17)156-(01)157 (17)157-(01)158 (18)160-(01)161 (15)161-(01)162 (17)162-(01)163 (11)163-(02)164 (15)164-(01)165 (16)165-(02)166 (16)166-(01)167 (17)167-(01)168 (11)168-(01)169 (12)169-(02)170 (15)170-(01)171 (16)171-(01)172 (17)172-(01)173 (16)173-(01)174 (13)174-(01)175 (16)175-(02)176 (15)176-(02)177 (16)177-(01)178 (17)178-(01)179 (17)179-(02)180 (15)180-(01)181 (18)183-(01)184 (18)186-(01)187 (16)187-(03)188 (11)188-(02)189 (14)189-(01)190 (15)190-(02)191 (17)191-(01)192 (15)192-(01)193 (14)193-(03)194 (14)194-(02)195 (15)195-(02)196 (15)196-(02)197 (15)197-(02)198 (15)198-(01)199 (15)199-(01)200 (15)200-(01)201 (15)201-(02)202 (14)202-(02)203 (13)203-(02)204 (15)204-(02)205 (14)205-(01)206 (14)206-(01)207 (14)207-(02)208 (15)208-(02)209 (11)209-(02)210 (15)210-(02)211 (14)211-(01)212 (13)212-(02)213 (13)213-(01)214 (15)214-(01)215 (13)215-(02)216 (08)216-(02)217 (14)217-(01)218 (13)218-(03)219 (13)219-(03)220 (10)220-(02)221 (09)221-(02)222 (13)222-(02)223 (13)223-(03)224 (10)224-(01)225 (13)225-(01)226 (11)226-(02)227 (11)227-(02)228 (09)228-(02)229 (10)229-(04)230 (10)234-(04)235 (10)235-(04)236 (07)236-(04)237 (07)237-(04)238 (07)238-(04)239 (07)241-(04)242 (07)242-(04)243 (07)243-(03)244 (07)244-(04)245 (05)247-(03)248 (06)250-(04)251 (07)254-(04)255 (07)255-(03)256 (06)256-(05)257 (06)264-(04)265 (09)268-(03)269 (07)269-(05)270 (07)270-(03)271 (06)271-(04)272 (06)272-(03)273 (06)273-(03)274 (08)298-(04)299 (07)299-(03)300 (08)300-(04)301 (08)315-(07)316 (09)316-(06)317 (08)317-(05)318 (09)318-(03)319 (08)322-(03)323 2018 100 none none none