QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL Station : Pohnpei-A Latitude: 06 59.0N Country : Fed. States Micronesia Longitude: 158 14.0E JASL # : 001A Time Meridian: 165E (GMT + 11 hr) GLOSS # : 115 TOGA #: P039 NODC #: 10156801 Contributor : Scripps Institute of Oceanography University of California at San Diego La Jolla, California Originator : unconfirmed Original Data: unconfirmed Instrmnt Type: unconfirmed Digitzd Intvl: unconfirmed Present Data : Hourly, daily, and monthly values obtained by: Hourly : unconfirmed 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 : 08 May 1969 - 28 Feb 1971 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 : 1969-1971 Refernce Levl: All heights have been referred to the station tide staff zero which is linked to fixed bench marks Comment : The tidal analysis was unable to resolve all the harmonic constituents in the data thus the hourly residuals contain uncertain periodic signatures. The daily and monthly means reveal no apparent changes in the reference level. This series is distinguished from Pohnpei-B because the two series are not linked to the same tide staff zero. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1969 65 none none see comment above 1970 100 none none see comment above 1971 16 none none see comment above