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 : El Porvenir Latitude: 09 33.5N Country : Panama Longitude: 078 56.9W JASL # : 739A Time Meridian: 075W (GMT - 5 hr) GLOSS # : none Originator #: 739 NODC #: 71079801 Contributor : University of Hawaii Sea Level Center (UHSLC) 1000 Pope Rd. MSB 317 Honolulu, Hawaii 96822 Originator : same Original Data: digital Instrmnt Type: 1) 9/2012- radar (RAD) gauge (Vega Vegapuls 62) 2) 9/2012- pressure transducer (PRS) 3) 9/2012- Bubbler (BUB) primary: RAD Digitzd Intvl: 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 : 22 Aug 2012 - 31 Dec 2018 Gaps > 1 mon : none Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : Yes Distribution : 2012-2018 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. Comment : Daily data agree with AVISO altimeter. JASL Nov 2019 update replaces 2016- 05 Sep 2017. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 2012 36 none none none 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 100 none none none 2018 95 58-76 (21)233-(13)234 none