QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL Station : Bahia de Los Angeles Latitude: 28 57.5N Country : Mexico Longitude: 113 33.0W JASL # : 310A Time Meridian: 105W (GMT - 7 hr) GLOSS # : none TOGA #: none NODC #: 72118301 Contributor : Centro de Investigacion Cientifica y de Educacion Superior de Ensenada (CICESE) Av. Espinoza No. 843 APDO. Postal 2732 Ensenada, Baja California, Mexico Originator : same Original Data: analog, digital (LS) Instrmnt Type: 1) standard gauge (1973-1982) float and well 2) Leupold Stevens (LS) 7001 (1983-) Digitzd Intvl: hourly to tenths of feet; 15 minutes (LS) Present Data : Hourly, daily, and monthly values obtained by: Hourly : spot sample on the hour from the analog roll; running mean filter (LS) 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 Jan 1973 - 09 Sep 1994 Gaps > 1 mon : 31 Dec 1973 - 01 Jan 1975;23 Sep 1981 - 01 Feb 1982 14 May 1982 - 24 Aug 1982;19 Apr 1983 - 11 Oct 1983 02 Mar 1984 - 12 Mar 1986;11 Aug 1991 - 06 Nov 1991 19 Jun 1992 - 18 Aug 1992;26 Sep 1992 - 28 Dec 1992 04 Mar 1993 - 13 Apr 1993 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1973-1994 Refernce Levl: The data are referred to tide staff zero which is linked to fixed bench marks. Comment : The daily and monthly values do not reveal any obvious reference level shifts or trends and agree reasonably well with Cabo San Lucas. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1973 99 1,365 (02)006-(12)006 none (21)014-(04)015 (03)034-(00)035 (15)036-(22)036 (13)064-(20)064 (17)066-(00)067 (02)091-(18)091 (16)181-(23)181 (21)228-(14)229 (18)230-(08)231 (15)266-(23)266 (10)268-(17)268 (01)274-(20)274 (21)328-(12)329 (19)345-(05)346 1974 0 1-365 none none 1975 100 none (23)071-(16)072 191-192,221 (01)074-(19)074 (06)092-(14)092 (06)119-(17)119 (07)135-(22)135 1976 100 none (17)093-(00)094 none (07)107-(15)107 (16)108-(23)108 (10)177-(20)177 (13)205-(21)205 (13)206-(20)206 (15)245-(23)245 (15)254-(05)255 (06)277-(16)277 (01)308-(17)308 1977 100 none (13)002-(00)003 none (19)012-(02)013 (01)019-(09)019 (01)060-(11)060 (16)065-(02)066 (16)104-(06)105 (11)106-(20)106 (14)121-(03)122 (09)129-(23)129 (20)154-(03)155 (00)271-(08)271 1978 89 182-223 (12)002-(21)002 none (21)010-(09)011 (16)071-(23)071 (17)174-(02)175 1979 94 102-105,175-180, (21)021-(05)022 none 307-322 (22)024-(07)025 (07)044-(15)044 (01)054-(09)054 (00)056-(07)056 1980 93 29-30,203-214, (06)009-(14)009 none 298-305,308-310, 316-319 1981 67 44-45,172-177,184- (07)086-(14)086 none 185,187-189,200-209, (16)111-(06)112 235-237,266-365 (00)194-(16)194 (18)197-(09)198 (19)228-(17)229 (21)240-(09)241 1982 56 1-32,134-236,246-273 (08)132-(15)132 none (14)347-(06)348 1983 52 87-89,109-284, (17)292-(00)293 none 347-365 1984 10 1-24,62-366 none none 1985 0 1-365 none none 1986 81 1-71 (07)072-(14)072 none (19)091-(04)092 (17)117-(01)118 (04)156-(11)156 (01)168-(09)168 (21)233-(08)234 (19)241-(08)242 (14)327-(23)327 (14)344-(23)344 1987 100 none (00)021-(07)021 none (02)030-(09)030 (02)070-(09)070 (17)134-(03)135 (14)137-(23)137 (16)174-(01)175 (07)191-(14)191 (15)220-(23)220 (05)284-(18)284 (06)285-(14)285 (15)305-(22)305 (05)313-(13)313 (01)326-(11)326 (05)328-(13)328 (04)329-(13)329 (13)334-(20)334 (03)337-(10)337 (08)352-(16)352 1988 100 none (07)007-(16)007 none (02)020-(13)020 (03)021-(12)021 (21)082-(04)083 (14)103-(21)103 (09)246-(23)246 (18)287-(03)288 (12)307-(20)307 (16)325-(01)326 (17)326-(00)327 1989 94 147-169 (02)009-(09)009 none (13)229-(21)229 (12)231-(22)231 (20)245-(05)246 (04)259-(13)259 1990 98 104-105,141-143, (12)087-(20)087 55-73,83-88,115- 147-148,184-186 (13)089-(21)089 119,144-146,171- (12)117-(20)117 178,189-204 (05)130-(13)130 (06)132-(14)132 (05)160-(13)160 1991 76 223-310 none none 1992 58 171-232,270-363,366 none none 1993 68 1,7-27,36-47,51-55, none none 63-103,105-128,278- 292,350-351,361-363 1994 67 61-62,103-107,173- (08)097-(18)097 none 175 (08)233-(15)233