Valparaiso-A (Chile) Site History

History Summary

Station Valparaiso-A
Country Chile
Latitude 33° 02.0' S
Longitude 071° 38.0' W
GLOSS No 175
Time Reference GMT (hours 00-23)
Contributor Servicio Hidrografico y Oceanografico de la Armada (SHOA)
Instrument Type Standard mechanical
Site of Gauge  
Observational periods 1944 - 1978

Reference Level

The originators have related the data to tide staff zero which is linked to a fixed set of bench marks.

Several segments with obvious shifts have warranted adjustment based on comparisons with Antofagasta and analysis of residuals (observed data minus predicted tides). These adjustments contain uncertainty of a few cm.

Period ((hour)day/month/year) Value Added to Original(mm)
(12)03/04/50 - (18)08/04/50 -140
(22)04/05/58 - (23)14/05/58 -200
(18)28/03/67 - (18)01/04/68 -140
(06)10/07/71 - (23)31/12/78 100

Benchmarks

Benchmark Description
BM Control
(TGBM)
This benchmark is a 6 cm bronze disk stamped 'Cota Control' set in cement at the north side in the base of the tide house.
BM No. 7
(Auxiliary)
This benchmark is a 6 cm bronze disk stamped CF 7, is set in cement at the west side of the building, located 60 m east of the tide house.
BM No. 2
(Auxiliary)
CF 3 1941

Benchmark Relationships

BM Control - 1985-1990.

BM No. 7 - 1950-1990.

Quality Assessment by the UH Sea Level Center

Comment

The differences of the daily and monthly values with Antofagasta appear reasonable, except for level uncertainty in Valparaiso during June - December, 1972. The hourly residuals show a very noisy signal during 1972 that is probably associated with mechanical problems.

Year CI (%) Missing Data Replaced Gaps or Bad Data Questionable Fluctuations
1944 84 308-366 none none
1945 99 1 (12)049-(05)050 (05)247-(23)247 (12)267-(03)268 (00)289-(20)289 (00)320-(22)320 (00)345-(22)345 (04)346-(23)346 (00)351-(21)351 none
1946 100 none (09)075-(21)075 (20)082-(05)083 (08)092-(04)093 (04)124-(16)124 (17)153-(06)154 (20)181-(23)181 (12)224-(23)224 (05)235-(23)235 (00)237-(22)237 (08)255-(18)255 (17)284-(02)285 (12)286-(23)286 (12)349-(23)349 (18)355-(08)356 none
1947 100 none (00)139-(20)139 (00)142-(22)142 (12)229-(04)230 (19)230-(04)231 (18)256-(07)257 (01)335-(19)335 (18)364-(05)365 none
1948 100 none (07)001-(23)001 (07)021-(23)021 (18)073-(16)074 (21)082-(09)083 (21)083-(18)084 (16)087-(11)088 (15)089-(23)089 (14)090-(23)090 (12)104-(23)104 (12)106-(23)106 (07)116-(04)117 (09)157-(16)157 (09)175-(16)175 (12)200-(23)200 (05)220-(02)221 (09)221-(23)221 (09)222-(16)222 (12)241-(05)242 (12)242-(09)243 (11)243-(21)243 (12)344-(10)345 (00)348-(21)348 (15)350-(07)351 (00)353-(22)353 (17)363-(15)364 none
1949 100 none (05)053-(18)053 (02)133-(12)133 (02)152-(10)152 (05)190-(15)190 (09)194-(18)194 (05)195-(20)195 (06)204-(23)204 (18)236-(04)237 (16)237-(03)238 (20)238-(05)239 (18)240-(11)241 (19)251-(04)252 (16)264-(11)265 (06)266-(14)266 (19)267-(05)268 (18)294-(05)295 (18)295-(03)296 (22)311-(06)312 (13)335-(23)335 none
1950 100 none (12)021-(20)021 (19)091-(06)092 (18)097-(04)098 (12)139-(22)139 (08)140-(20)140 (06)284-(15)284 (07)325-(23)325 225-242
1951 100 none (16)115-(23)115 (00)183-(09)183 (19)242-(02)243 (18)256-(11)257 (00)307-(20)307 (07)336-(23)336 none
1952 100 none (12)310-(21)310 (20)134-(14)135 (17)262-(07)263 (19)263-(03)264 (22)307-(08)308 none
1953 100 none (12)047-(21)047 (12)075-(23)075 (06)076-(15)076 (12)088-(07)089 (20)089-(08)090 (20)209-(05)210 (00)220-(20)220 (02)233-(23)233 (02)234-(23)234 (19)245-(05)246 (10)246-(22)246 (20)276-(18)277 (12)326-(06)327 none
1954 100 none (02)120-(23)120 (02)137-(11)137 (01)138-(23)138 (00)164-(18)164 (09)229-(04)230 (08)239-(19)239 none
1955 100 none (03)020-(23)020 (22)098-(06)099 (09)101-(23)101 (01)213-(22)213 (22)276-(17)277 (12)335-(04)336 (11)336-(23)336 (18)338-(11)339 none
1956 100 none (08)012-(19)012 (08)014-(04)015 (16)066-(11)067 (13)067-(04)068 (00)209-(08)209 (00)229-(21)229 (01)275-(21)275 none
1957 72 138-213,220-244 (07)096-(05)097 (07)097-(19)097 (00)098-(11)098 (01)120-(23)120 (19)214-(15)215 244-288
1958 99 135-138,152-154 none 94-97
1959 100 none (04)040-(21)040 (20)043-(03)044 (00)225-(20)225 (00)249-(11)249 (04)296-(23)296 none
1960 97 140-153 (00)040-(11)040 (20)082-(03)083 (20)082-(03)083 (00)099-(22)099 (20)191-(18)192 (13)201-(11)202 (21)275-(04)276 none
1961 100 none (22)040-(16)041 (12)115-(23)115 (01)132-(23)132 (00)151-(22)151 (02)181-(23)181 (16)274-(08)275 none
1962 100 none (14)146-(22)146 (16)147-(23)147 (18)157-(11)158 (01)176-(09)176 (14)222-(23)222 (21)238-(04)239 (01)348-(23)348 (22)356-(11)357 none
1963 100 none (03)036-(11)036 (20)082-(11)083 (12)120-(23)120 (19)121-(11)122 (00)223-(19)223 (12)224-(23)224 (00)325-(10)325 none
1964 100 none (00)062-(09)062 (17)079-(11)080 (20)088-(10)089 (04)120-(11)120 (07)123-(22)123 (03)359-(23)359 none
1965 100 none (10)183-(18)183 (09)184-(19)184 (00)222-(21)222 none
1966 99 209-213 (16)001-(23)001 (03)216-(23)216 none
1967 100 none none none
1968 100 none (15)067-(08)068 (00)137-(10)137 (17)181-(04)182 (12)196-(23)196 (12)198-(23)198 (00)246-(19)246 (13)137-(11)138 (12)196-(20)196 none
1969 100 none (12)132-(20)132 (00)345-(21)345 none
1970 100 none (20)036-(18)037 (19)046-(16)047 (08)069-(21)069 (04)097-(20)097 (00)145-(09)145 (00)197-(07)197 (00)205-(20)205 (21)208-(19)209 none
1971 99 285-286 (04)084-(03)085 (01)091-(22)091 (15)123-(09)124 (12)185-(07)186 (18)189-(11)190 (04)198-(23)198 (19)248-(03)249 (20)249-(03)250 (20)288-(11)289 (18)318-(11)319 none
1972 98 198-200,265-267 (22)127-(20)128 (20)188-(11)189 (04)206-(03)207 (12)207-(10)208 (00)252-(21)252 (04)311-(03)312 (05)350-(18)350 none
1973 93 72-81,107-114,118-122,307-313 (00)002-(22)002 (00)036-(11)036 (00)046-(11)046 (02)104-(09)104 (06)117-(17)117 (15)181-(23)181 (12)218-(23)218 (16)242-(06)243 (00)263-(22)263 (06)262-(23)262 none
1974 24 26-28,91-365 (18)010-(02)011 (19)011-(04)012 (19)012-(04)013 (15)021-(06)022 (18)022-(09)023 (13)025-(22)025 (18)028-(16)029 (17)067-(14)068 (00)069-(22)069 (13)012-(23)012 (00)070-(21)070 none
1975 0 1-365 none none
1976 0 1-366 none none
1977 96 253-258,302-312 (10)013-(18)013 (21)014-(05)015 (12)016-(20)016 (03)017-(23)017 (09)023-(19)023 (02)208-(23)208 (12)217-(23)217 none
1978 15 none (08)040-(21)040 (04)046-(23)046 none