QUALITY ASSESSMENT OF SEA LEVEL DATA by the UH SEA LEVEL CENTER/NATIONAL OCEANOGRAPHIC DATA CENTER JOINT ARCHIVE FOR SEA LEVEL updated: 16 Apr 2001 Station : Tumaco Latitude: 01 50.0N Country : Colombia Longitude: 078 44.0W JASL # : 303A Time Meridian: 075W (GMT - 5 hr) GLOSS # : 171 TOGA #: P096 NODC #: 70071801 Contributor : Instituto de Hidrologia, Meteorologia Y Estudios Ambientales Ministerio de Medio Ambiente Bogota, D.E., Republica de Colombia and for ADR data, assistance from Atlantic Oceanographic and Meteorological Lab. 4301 Rickenbacker Causeway Miami, Florida 33149 Originator : same Original Data: analog (STD), digital (ADR) Instrmnt Type: Standard (STD) analog with float and stilling well (1951-Oct/1989);Fisher and Porter analog- to-digital (ADR) recorder (Nov/1989-) Digitzd Intvl: hourly spot reading (STD); 6 min (ADR) Present Data : Hourly, daily, and monthly values obtained by: Hourly : Original data were hourly (STD); spot reading on the hour (ADR). 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 : 01 Nov 1951 - 31 Dec 2000 Gaps > 1 mon : 01 Jun 1952 - 02 Jul 1952;30 Sep 1952 - 01 Apr 1953 19 Jan 1958 - 21 Mar 1958;26 Apr 1958 - 01 Jun 1958 13 Jul 1970 - 14 Nov 1970;23 Jun 1977 - 19 Sep 1979 25 Feb 1983 - 07 Apr 1983;07 May 1983 - 23 Jun 1984 01 Nov 1987 - 07 Dec 1987;11 Oct 1989 - 02 Dec 1989 20 Nov 1990 - 12 Feb 1992;01 Mar 1992 - 10 Apr 1992 01 Jan 1995 - 19 May 1995 Time Refernce: GMT (hours 00-23) Space-filler Flag :-9999 Units : millimeters Missing Data Flag : 9999 Existing : Yes Operational : Yes Sat. Trans. : No Distribution : 1951-2000 Refernce Levl: The data have been linked to tide staff zero by the originators. The following segments were adjusted after analysis of hourly residuals and comparisons with neighboring sites: period value added ( (hour)day/month/year ) to original(mm) --------------------------- --------------- (00)01/01/51 - (15)06/10/62 750 (16)06/10/62 - (20)27/06/72 1850 (21)27/06/72 - (13)26/04/74 2000 (14)26/04/74 - (18)01/05/74 2150 (19)01/05/74 - (23)31/12/79 900 (14)12/05/88 - (02)13/05/88 305 (13)07/08/88 - (12)08/08/88 152 (13)25/08/88 - (09)26/08/88 91 (14)31/08/88 - (12)01/09/88 -152 (14)09/09/88 - (12)10/09/88 -61 (21)17/09/90 - (13)19/09/90 -600 (03)01/02/92 - (23)30/09/92 50 (00)10/11/92 - (19)23/11/92 250 (04)01/03/93 - (19)05/03/93 200 (18)11/11/95 - (12)15/11/95 200 (12)29/06/96 - (12)17/07/96 120 (03)08/08/96 - (12)01/10/96 150 (15)20/11/96 - (04)01/12/96 -180 The above adjustments are uncertain to a few cm. Independent of the above adjustments, the series from May 1995 - Dec 2000 was adjusted by 2.258m (information supplied by IDEAM). Comment : The daily and monthly means of Tumaco agree fairly well with adjacent stations. Timing drifts and data gaps occur throughout the record, especially poor in 1999-2000. CI MISSING REPLACED GAPS QUESTIONABLE YEAR (%) DATA OR BAD DATA FLUCTUATIONS ---- --- -------------------- --------------- -------------------- 1951 16 359-360 (20)334-(23)334 319-365 (00)337-(13)337 (21)351-(13)352 1952 55 139-140,153-184,192- (00)054-(12)054 1-274 197,199-200,211-225, (01)056-(14)056 229-232,237-244,249- (14)057-(12)058 255,257-261,274-366 (14)125-(12)126 (19)140-(12)141 (22)150-(13)151 (13)186-(12)187 (20)197-(12)198 (22)207-(12)208 (02)248-(12)248 (22)252-(14)253 (13)268-(12)269 (00)271-(12)271 1953 70 1-91,116-121,152-164 (04)105-(12)105 none (04)125-(15)125 (04)183-(12)183 1954 90 68-69,89-90,99-121, (02)133-(11)133 69-88 138-139,171-177,215- (01)148-(08)148 221 (03)342-(11)342 (05)347-(04)348 (17)364-(12)365 1955 99 262-264 (00)036-(12)036 199-204 (16)077-(12)078 (14)083-(12)084 (01)109-(11)109 (00)174-(13)174 (04)223-(12)223 (04)239-(12)239 (02)263-(13)263 (00)277-(13)277 (01)283-(12)283 (03)300-(12)300 (23)304-(23)304 (00)330-(13)330 (06)348-(13)348 1956 94 100-104,292-293,338- (22)065-(12)066 13,28-29 356 (05)075-(12)075 (20)083-(12)084 (22)113-(12)114 (13)134-(11)135 (03)138-(12)138 (03)147-(12)147 (18)152-(23)152 (01)153-(12)153 (14)176-(12)177 (19)194-(04)195 (14)217-(22)217 (16)218-(23)218 (00)307-(12)307 (18)309-(12)310 (13)328-(12)329 (02)331-(11)331 (17)335-(23)335 1957 100 none (05)017-(12)017 none (18)032-(12)033 (00)061-(11)061 (06)076-(14)076 (14)175-(22)175 (05)213-(04)214 (05)309-(04)310 (15)323-(23)323 1958 69 19-80,116-152,243- (05)093-(04)094 none 244,292-293,354-365 (18)180-(11)181 1959 99 1 none none 1960 100 none (01)061-(11)061 none (13)077-(23)077 1961 100 none none 241 1962 98 197-199,272-274,357- (13)308-(12)309 none 358 (22)024-(11)025 (15)073-(11)074 (12)102-(23)102 (18)154-(16)155 (21)222-(04)223 (00)272-(13)272 (12)335-(23)335 1963 98 83-84,89-91,223-224, (13)031-(23)031 none 342-343 (03)067-(12)067 (13)160-(11)161 (14)197-(12)198 (17)189-(01)190 (12)199-(23)199 1964 93 43-62,90-93,148-150, (13)113-(11)114 none 235-237 (05)214-(12)214 (15)234-(12)235 (05)275-(12)275 (01)336-(14)336 1965 88 118-134,152-156,158- (05)152-(13)152 none 159,163-165,172-190 (17)153-(03)154 (19)154-(12)155 (20)155-(04)156 (23)159-(07)160 (13)160-(20)160 (02)161-(10)161 (18)170-(04)171 (04)300-(12)300 (05)305-(12)305 (19)329-(02)330 (05)335-(12)335 (03)341-(10)341 (18)344-(02)345 (21)347-(04)348 (15)355-(23)355 (18)357-(01)358 (21)362-(05)363 1966 95 103-105,121-123,149- (05)001-(16)001 310-311 150,317-319,355-365 (14)004-(22)004 (00)016-(08)016 (17)020-(00)021 (21)027-(04)028 (20)069-(03)070 (16)078-(23)078 (17)079-(00)080 (20)221-(11)222 (12)223-(07)224 (00)248-(21)248 (18)298-(05)299 (07)316-(18)316 1967 86 1-13,17-18,85-87,99- (13)143-(12)144 343,351-352,358- 100,114-115,123-125, (16)147-(04)148 360 139-140,155-157,196- (15)151-(23)151 198,218-220,231-233, (03)161-(11)161 245-248,249-260,274- (21)164-(12)165 275,322-323,338-340, (14)169-(13)170 343-347 (05)182-(13)182 (23)186-(11)187 (16)194-(11)195 (19)195-(11)196 (18)201-(11)202 (17)202-(11)203 (01)213-(13)213 (17)220-(12)221 (18)228-(12)229 (18)233-(12)234 (17)235-(12)236 (13)237-(11)238 (16)240-(12)241 (23)241-(12)242 (05)244-(12)244 (05)249-(13)249 (05)305-(12)305 (05)335-(12)335 1968 94 14-17,44-47,51-52, (05)001-(12)001 7-8,29-30,35,70- 56-58,83-85,112-113, (13)053-(12)054 82 121-123,168-170,178- (02)070-(13)070 183,208-209,304-306 (13)093-(11)094 (10)122-(02)123 (19)245-(11)246 1969 98 151-152,236-237,274- (04)002-(12)002 182-365 275,295-298 (13)129-(12)130 (14)142-(12)143 (05)274-(12)274 (15)294-(11)295 (05)305-(13)305 (13)327-(11)328 1970 65 9-13,194-318 none 1-194 1971 100 none none 56-62 1972 99 33-34,115-117 (05)001-(12)001 none (16)033-(12)034 1973 99 95-98,130-131,140-141(01)213-(11)213 none 1974 98 159-160,174-181,199- (05)121-(15)121 none 201 (00)124-(15)124 (10)155-(17)155 (01)163-(12)163 (07)166-(16)166 (05)168-(16)168 (17)170-(13)171 (05)173-(16)173 (21)178-(12)179 (05)182-(14)182 (19)289-(14)290 (05)333-(16)333 1975 99 259-260 (18)064-(14)065 259-260 (05)225-(04)226 1976 99 19-20 none 240-243 1977 47 174-365 none 1978 28 1-262,314-316 (10)297-(19)297 none 1979 91 74-82,251-253,301- (10)037-(23)037 none 303,346-365 (09)198-(16)198 (08)278-(23)278 (19)296-(17)297 (03)320-(11)320 (07)340-(23)340 1980 60 1-148 none 157-161,178-183,187- 193,209-211,214-216, 239-245,249,252-254, 256-257,260-262,267- 269,296-298,300-303, 315-321,328-330,342- 346,348-349,353-362 1981 100 none none 10-13,18,20-21,50- 53,68-72,78-79,82- 84,170,173-174,176, 184-186,200-201,207- 213,228-230,243-246, 290,298-304,317-318, 345-347 1982 100 none (21)037-(14)038 26-27,54,64,66,99- 100,117-121,133-134, 141-152,154-161,180- 182,184-185,188-201, 204,339-342,344-346 1983 89 56-97 none 1-6,10,15,21-22,27- 28,45-48,51,120-121, 138-145,149-152,161, 165-166,182-185,191- 192,204-206,221,228, 241-247,251-253,257, 259-261,271-272,279, 283-285,295-300,310, 314-318,324-331,348- 350 1984 83 128-175,222-238 none 20,29,48-51,64,70- 72,91-92,98-101,104- 108,124-126,183-184, 186-189,192-193,196- 197,213,271-273,346- 349,353-361 1985 100 none (05)001-(15)001 229-231,269-270,309- (06)014-(18)014 310,312-319,341-346, (14)026-(20)026 360-361,364 (08)051-(14)051 (08)080-(18)080 (05)088-(16)088 (21)090-(23)090 (01)091-(12)091 (01)103-(19)103 (18)111-(11)112 (08)230-(17)230 (00)257-(15)257 (05)274-(20)274 1986 99 152-154 (12)339-(20)339 3-8,55-62,66-72,86- (05)354-(16)354 90,171-177,197,204- 205,221-223,231-238, 243,332-338,342-343, 348-349,354-357,360- 361,363-365 1987 88 150-152,219-220, (01)120-(14)120 2-4,6-7,16-19,28-34, 238-240,305-341, (03)166-(00)167 56-58,75,89-91,152, 343-345 (14)174-(01)175 159,188-189,197,200, (05)179-(14)179 204-205,208-211,213- (03)203-(09)203 215,217-218,220-228, (03)245-(18)245 231,234-236,238,240- (02)246-(14)246 243,345-346,360-361 (04)267-(15)267 1988 94 108-109,134-135, (13)066-(12)067 6,17-24,32,45-53,55- 140-153,163-166, (18)078-(01)079 56,76-78,80-81,83- 330-331 (13)118-(12)119 84,103,105,107-108, (02)123-(13)123 130-133,136-138,154, (17)137-(01)138 155,157-158,161,165- (22)153-(12)154 170,172,182-183,185- (02)157-(11)157 186,204-209,211-215, (01)163-(15)163 218,220,228,242-247, (13)209-(12)210 257-259,266-271,274- (01)243-(12)243 276,283,298-299,316- 317,343,346-347,353- 354,357,360-361 1989 84 39-41,52-53, (13)028-(12)029 7-9,26-28,42-45,57- 68-71,284-336 (02)030-(12)030 58,65,74-76,81,85- (21)033-(16)034 86,95,110-111,117, (13)035-(12)036 124,126-132,148-149, (16)041-(12)042 154-158,173-174,183- (05)050-(13)050 192,215-219,229-230, (21)071-(12)072 233-234,242,244-246, (22)096-(12)097 257-265,267-268,271- (23)097-(12)098 275,278-279 (00)099-(12)099 (01)101-(12)101 (02)123-(12)123 (13)139-(22)139 (13)158-(12)159 (18)243-(12)244 1990 79 84-86,113-138 (05)032-(19)032 142-146,248-249, 295-302,324-365 307-312,319-324 1991 0 1-365 none none 1992 63 1-44,61-101,170-171 (03)048-(12)048 171-172,182-183,232- 176-178,183-184,186- (10)049-(22)049 274,276-279,283-284, 189,198-199,213-218, (15)058-(03)059 290,296 238-239,241-243,244- (03)153-(12)153 251,262-265,270-272, (20)208-(05)209 275-276,278-280,285- 288,297-314 1993 94 21-23,43-46,113-119, none 32-43,46-59 180-181,203-213 1994 98 10-11,28-32,333-335 (20)046-(18)047 244-275 1995 56 1-139,223-228,235- (15)157-(22)157 none 240,306-311,329-335 (21)213-(05)214 (04)221-(11)221 (10)243-(17)243 1996 99 347-353 (11)314-(18)314 214-242 1997 98 88-92,175-176, (22)171-(15)172 65-88,97,101-102, 319-322 262-264,289-290 1998 98 335-343 (00)224-(20)224 28-36,87-89,100-116, 145-147,164-170,190- 198,222-223,261-268, 283-284,343-365 1999 95 30-36,225-229,270- (13)265-(04)266 1-359 273,330-335 2000 87 69-73,78-82,111-114, (10)177-(18)177 4-366 126-129,155-157,210- (07)359-(22)359 216,288-291,328-329, 331-332,335-356