QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 14 Jul 2015 Station : San Juan-B Latitude: 15 22.0S Country : Peru Longitude: 075 12.0W JASL # : 096B Time Meridian: 075W (GMT - 5 hr) GLOSS # : none TOGA #: none NODC #: 51075501 Contributor : Direccion Hidrografia y Navegacion de la Marina Camarra 500 Chuculto Casilla Postal 80 Callao, Peru Originator : same Original Data: analog (ANA), digital (RGE) Instrmnt Type: 1. 2003-2010:standard mechanical tide gauge (ANA) 2. 2010- radar Geonica (RGE) Digitzd Intvl: one hour (ANA); unconfirmed (RGE) Present Data : Hourly, daily, and monthly values obtained by: Hourly : The original digitizing interval was hourly (ANA); unconfirmed (RGE) 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 : 12 Jul 2003 - 31 Dec 2014 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. : No Distribution : 2003-2014 Refernce Levl: All heights have been referred to the station tide staff zero which is linked to fixed bench marks. In comparison of the daily means with adjacent stations (Callao, Pisco, and Matarani), and with inspection of the plots of hourly residuals, the following obvious level shifts were adjusted: (hh)ddmmyyyy - (hh)ddmmyyyy added to original (mm) --------------------------- ---------------------- (00)23082006 - (13)25102006 -300 These adjustments are uncertain to several cm. Comment : The series was broken into segments San Juan-A and San Juan-B due to a large reference level shift on 12 July 2003. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 2003 47 267-270 none none 2004 96 167-168,185-189,215- (15)088-(04)089 44 216,227-229,268-270, (05)153-(12)153 291-293,340-341 (23)241-(17)242 (08)280-(15)280 (05)306-(12)306 (05)336-(13)336 2005 93 63-66,109-110,130- (17)002-(14)003 174-177,323 131,171-172,231-234, (01)080-(15)080 242-255,264-266,302- (03)253-(13)253 304,337-339 (01)305-(20)305 (14)318-(23)318 (05)335-(15)335 2006 94 119-121,141-142,161- (20)056-(18)057 322-328 163,186-187,214-215, (05)060-(22)060 232-235,246-248,278- (00)073-(13)073 280,306-310,335-338 (21)338-(14)339 (00)342-(10)342 (14)342-(13)343 (17)351-(15)352 2007 92 38-43,126-129,166- (20)002-(03)003 228 169,176-178,217-218, (05)060-(14)060 255-260,285-288,305- (16)266-(14)267 307,323-324,328-330 (19)308-(18)309 (02)327-(14)327 (19)330-(14)331 (05)332-(04)333 (00)335-(14)335 2008 90 13-15,19-21,40-42, (22)024-(13)025 66-69,80-85,95-99, 47-49,55-56,161-162, (19)030-(13)031 127-128,182,184, 171-172,207-210,212- (00)038-(14)038 186,197,201-202, 217,256-259,285-287, (02)046-(15)046 212,224,227,321, 289-295,301-303,316- (11)050-(19)050 324 318,326-327 (01)051-(17)051 (08)058-(16)058 (09)088-(19)088 (05)092-(14)092 (08)129-(18)129 (02)145-(16)145 (22)145-(13)146 (05)152-(13)152 (21)227-(14)228 (08)250-(16)250 (21)252-(14)253 (15)255-(12)256 (17)263-(14)264 (03)288-(12)288 (00)296-(14)296 (23)300-(06)301 (18)303-(13)304 (15)310-(13)311 (04)313-(13)313 (15)314-(12)315 (02)319-(12)319 (21)321-(05)322 (18)322-(12)323 (17)325-(12)326 (18)327-(13)328 (16)328-(12)329 (18)329-(12)330 (21)332-(12)333 (05)334-(14)334 (20)335-(07)336 (03)339-(12)339 (04)357-(12)357 2009 95 100-103,129-134,138- (05)010-(13)010 none 140,170-173,206-207, (15)017-(13)018 245-247,265-267,341- (23)030-(14)031 343 (18)091-(14)092 (05)136-(13)136 (07)141-(14)141 (00)146-(12)146 (19)160-(12)161 (17)166-(14)167 (20)200-(17)201 (14)204-(13)205 (17)211-(01)212 (05)223-(23)223 (22)244-(13)245 (00)248-(13)248 (17)259-(13)260 (00)274-(21)274 2010 97 38-39,50-53,66-67, (05)026-(12)026 60,93,112,178 85-88,126-127,132- (05)043-(12)043 134 (22)061-(13)062 (15)067-(23)067 (18)069-(14)070 (19)073-(13)074 (17)082-(13)083 (21)083-(12)084 (17)084-(00)085 (21)089-(04)090 (06)163-(13)163 (04)167-(13)167 (15)266-(04)267 2011 95 119-121,350-365 (16)031-(04)032 71-73,89-90,171, (12)090-(04)091 207-208 (14)151-(04)152 (13)243-(04)244 (13)278-(21)278 2012 97 1,90-92,242-245,304- (14)031-(04)032 none 306,334-336 (18)060-(04)061 (16)121-(04)122 (14)152-(04)153 (14)213-(04)214 2013 100 none none 143,187,196 2014 100 none none 276