Majuro (Marshall Islands) Site History

Site

Station Majuro
Country Republic of Marshall Islands
Latitude 07° 17.0'N (1968-1972)
07° 06.4' N (1973-1998)
Longitude 171° 08.3' E (1968-1972)
171° 22.4' E (1973-1998)
GLOSS No 112
Time Reference GMT (hours 00-23)
Contributor
(1968-1972)
Scripps Institute of Oceanography
Contributor
(1973-1998)
UH Sea Level Center
Contributor
(1999-)
The National Tidal Facility (NTF)
Flinders University of South Australia
GPO Box 2100
Adelaide, 5001,
South Australia.
Instrument Type 1968-72 unconfirmed
1. (Apr 1974-present) Leupold and Stevens Analog-to-Digital Recorder (ADR)
2. (Aug 1983-present) Handar Encoder (ENC)
NTF: Aquatrak acoustic gauge (SEAFRAME)
Primary gauge ADR: 1974-90
ENC: 1991-
Site of Gauge  
Observational periods 1968 - 2001

Reference Level

All heights have been referred to the station tide staff zero which is linked to fixed benchmarks. The 1968-72 data have not been linked to the remaining series with either geodetic leveling or data overlap. However the long term difference with Kwajalein suggests these two segments at Majuro are on the same level. Use discretion.

Tide Gauge Benchmark (TGBM) Description

Benchmark Description
BM1 The SS bolt has no stamp and is embedded in concrete on the roadway to the dock, next to the curb. It is about 2 ft south of tide station foundation.
BM2 The SS bolt is embedded in the corner of a concrete slab by the electrical vault, which is on the north west side of the freezer of fishery pier.
BM4 The SS bolt has no stamp and is embedded into the concrete curb of the copra dock road way. It is situated at the top of the incline just past the power station pump house.
BM3 This has been replaced by BM3A, and can be found on the rise near the guard rail in the south western corner of freezer plant, five feet from BM3.

Quality Assessment by the UH Sea Level Center

Comment

The daily and monthly means reveal no apparent changes in the reference level and agree with Ponape.

Timing accuracy was no better than plus or minus 7 minutes prior to 1983.

Year CI(%) Missing Data Replaced or Bad Data Questionable Fluctuations
1969 100 none (23)209-(11)210 (00)211-(10)211 none
1970 100 none none none
1971 100 none none none
1972 99 366 (03)356-(02)357 none
1973 0 1-365 none none
1974 37 251-365 none none
1975 72 1-81,105-120,126-129,258-259 none 84-85,88-89,98-99,102,145-146,175,188-192
1976 97 255-257,266-270, none 1-4,16-17,47-49,161-
1977 100 none none 18-23,32-40,79-85,89-90,121-126,136-142,147-151,179-181,
1978 97 60-69 none 8-12,21-24,35-40,52-302-305,315-323,329-
1979 86 75-117,262-269 none 1-3,9-11,56-63,142-145,172-178,229,365
1980 82 91-155 none 1-3,27-35,43-51,59- 68,73-80
1981 100 none none 64-70,75-84,179-183,
1982 99 166-167 none 7-11,25,37-41,66-71,317-319
1983 100 none none 1-5,25-34,43-49,55-61,84-89
1984 100 none none none
1985 100 none none none
1986 100 none none none
1987 100 none none none
1988 92 6-11,339-365 none 48-50,61-65,77-80,268-269,300-302
1989 100 none none none
1990 100 none none none
1991 100 none none none
1992 100 none none none
1993 100 none none none
1994 100 none none none
1995 100 none none none
1996 100 none none none
1997 100 none none none
1998 100 none none none
1999 90 213-240,257-264,335-337 none none
2000 94 7-13,16-32 none none
2001 99 289-290 none none