QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 20 Nov 2019 Station : San Andres Latitude: 12 34.2N Country : Colombia Longitude: 081 42.1W JASL # : 737A Time Meridian: 075W (GMT - 5 hr) GLOSS # : none Originator #: NODC #: 71082101 Contributor : Instituto de Hidrologia, Meteorologia Y Estudios Ambientales Ministerio de Medio Ambiente Bogota, D.E., Republica de Colombia and for 25 Sep 2012 - 2015 University of Hawaii Sea Level Center (UHSLC) 1000 Pope Rd. MSB 317 Honolulu, Hawaii 96822 Originator : same Original Data: digital Instrmnt Type: 1) 1997- Leupold Stevens punch gauge with float/well (LS) 2) 9/2012- radar (RAD) gauge (Vega Vegapuls 62) 3) 9/2012- pressure transducer (PRS) 4) 9/2012- Bubbler (BUB) primary: 1997-25 Sep 2012: LS 25 Sep 2012-: BUB Digitzd Intvl: LS:6 min, RAD:2 min, PRS:2 min, BUB:10 min Present Data : Hourly, daily, and monthly values obtained by: Hourly : spot read on hour (LS); Hanning filter centered on the hour (UHSLC) 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 1997 - 31 Dec 2018 Gaps > 1 mon : 11 Jun 1999 - 20 Jul 1999;24 Nov 1999 - 03 Nov 2000 22 Dec 2000 - 04 Feb 2001;16 Oct 2001 - 04 Dec 2001 01 Aug 2002 - 01 Dec 2002;29 Dec 2002 - 11 May 2003 29 Sep 2003 - 24 Mar 2004;29 May 2004 - 29 Aug 2004 28 Sep 2004 - 02 Mar 2005;19 Sep 2006 - 04 Nov 2006 01 Sep 2007 - 02 Oct 2008;01 Jan 2009 - 02 Oct 2009 29 Mar 2010 - 16 Oct 2010;02 May 2011 - 14 Jun 2011 17 Apr 2017 - 24 May 2017 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 1997-2018 Refernce Levl: The reference level zero is linked to fixed benchmarks. 2000 mm was added to the 1997-2009 data to match the new reference level associated with the new tide staff zero, which is -0.372m relative to the primary bench mark, NP-SA-1. The UHSLC data were linked to NP-SA-1 by adding 2000 mm. Comment : The data contain numerous gaps and timing is poor 2001-2009, 2012. The comparison of daily values with AVISO alimeter data suggests the reference level is stable for most periods. Difference with Limon Costa Rica and AVISO show some 10 cm offset 2009-2011 at times, use this period with caution. JASL Nov 2019 update replaces 2016- 05 Sep 2017. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1997 89 3-25,32-38,45-48, (10)041-(17)041 none 151-154,206-209,346- (14)125-(09)126 349, (18)146-(09)147 (18)160-(13)161 (02)201-(09)201 (02)204-(11)204 (14)220-(04)221 (14)284-(01)285 (02)286-(13)286 (06)288-(13)288 (14)295-(21)295 (14)298-(21)298 (14)350-(21)350 (18)351-(04)352 1998 93 86-112 (22)016-(09)017 none (18)028-(09)029 (14)040-(09)041 (14)068-(21)068 (06)300-(17)300 1999 76 162-201,251-262, none none 328-365 2000 13 1-308,318-320, none 322 357-366 2001 72 1-35,116-126,229- (16)041-(13)042 71-288 231,259-260,276-280, (21)157-(04)158 289-338,344-346 (15)273-(22)273 (06)346-(13)346 2002 65 213-335,341-343, (05)181-(04)182 335-363 363-365 2003 39 1-131,272-365 (14)140-(05)141 131-272 (18)145-(05)146 (10)153-(21)153 (10)207-(04)208 (14)252-(21)252 (14)261-(21)261 (10)270-(21)270 2004 26 1-84,150-242,272-366 (17)129-(04)130 84-272 (09)245-(16)245 (17)267-(08)268 2005 78 1-61,298-317 (20)074-(15)075 61-365 (03)078-(02)079 (08)145-(15)145 (16)157-(23)157 (20)173-(07)174 (16)180-(14)181 (12)183-(19)183 (12)193-(23)193 (16)199-(23)199 (08)200-(02)201 (16)201-(23)201 (08)214-(07)215 (12)218-(19)218 (16)230-(23)230 (16)232-(23)232 (12)233-(23)233 (16)234-(07)235 (16)235-(23)235 (12)244-(19)244 (12)255-(23)255 (12)258-(23)258 (16)260-(07)261 (12)261-(03)262 (16)262-(03)263 (15)263-(22)263 (16)266-(00)267 (04)270-(02)271 (12)290-(19)290 (20)335-(06)336 2006 80 14-29,77-79,106-108, (08)056-(03)057 1-365 198-199,213-218,262- (13)098-(12)099 308 (16)108-(03)109 (07)166-(21)166 (08)220-(04)221 2007 58 65-92,138-140, (01)107-(09)107 1-244 244-365 2008 24 1-176,291-293 (11)341-(10)342 none (23)342-(06)343 (19)343-(06)344 (19)348-(10)349 (19)349-(06)350 2009 2 1-275,290-292 (10)340-(09)341 275-365 (22)341-(05)342 (18)342-(05)343 (18)347-(09)348 (18)348-(05)349 2010 45 88-289 none none 2011 83 122-165,241-251, (14)014-(07)015 none 357-365 2012 95 33-35,65-67,98-101, none 8-15,21-26,67-269 132-134,165-168,198- 201,232-235 2013 100 none (13)174-(00)175 none (00)235-(08)235 2014 100 none none none 2015 100 none none none 2016 100 none none none 2017 90 107-144 none none 2018 100 none (21)233-(13)234 none