QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 30 Nov 2005 Station : Saipan-A Latitude: 15 13.0N Country : N. Mariana Islands Longitude: 145 44.0E JASL # : 028A Time Meridian: 150E (GMT + 10 hr) GLOSS # : 118 TOGA #: P015 NODC #: 11145501 Contributor : Japan Oceanographic Data Center 5-3-1 Tukiji, Chuo-ku Tokyo, Japan Originator : Meteorological Observatory South Sea Bureau West Caroline Island, Japan Original Data: analog Instrmnt Type: float/well gauge, Old Lord Kelvin type self-registering mechanism (scale 1:20) Digitzd Intvl: hourly Present Data : Hourly, daily, and monthly values obtained by: Hourly : spot 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 : 02 Mar 1938 - 20 Mar 1940 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 : 1938-1940 Refernce Levl: All heights have been referred to the station tide staff zero which is linked to fixed bench marks. Series 028A is separate from 028B since they have not been linked to the same datum. Comment : The daily and monthly means reveal no apparent changes in the reference level. The location of the gauge was on the North Garapan Wharf. The timing is off by roughly 30 minutes in 1940. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1938 81 73-74,100-102,152- (06)062-(02)063 none 153,299-300,314-316 (16)082-(03)083 (07)250-(01)251 (05)251-(02)252 (03)268-(12)268 (07)279-(18)279 (03)285-(22)285 (09)286-(18)286 (21)286-(10)287 (17)287-(02)288 (06)298-(21)298 (07)306-(20)306 (08)318-(05)319 (16)319-(04)320 (20)320-(04)321 (17)322-(04)323 (19)323-(03)324 1939 97 26-28,60-62,94-96, (17)028-(00)029 none 103-104,365 (12)048-(20)048 (16)119-(06)120 (10)120-(21)120 (08)126-(05)127 1940 21 26-28,61-63 (15)028-(22)028 1-80 (10)048-(18)048 (14)059-(13)060