Honiara (Solomon Islands) Site History

Site

StationHoniara, Guadalcanal
CountrySolomon Islands
Latitude09° 25.5' S
Longitude159° 57.4' E
GLOSS No066
Time ReferenceGMT (hours 00-23)
Contributor
(1974-1994)
UH Sea Level Center
Contributor
(1995 - present)
The National Tidal Facility (NTF)
Flinders University of South Australia
GPO Box 2100
Adelaide, 5001,
South Australia.
Instrument Type1. (1974-present) Leupold and Stevens Analog-to-Digital Recorder (ADR)
2. (11/1984-present) Handar Encoder (ENC)
3. NTF: Aquatrak acoustic gauge (SEAFRAME)
Primary GaugeADR:1974-90
ENC 1991-94
SEAFRAME 4/Jan/1995 onward
Site of Gauge 
Observational periods1974 - 2001

Reference Level

All heights have been referred to the station tide staff zero which is linked to fixed bench marks.

Tide Gauge Benchmark (TGBM) Description

BenchmarkDescription
MBM 001This consists of a brass hexagonal bolt surmounted by a copper plate inscribed 'MBM 001 1981', set in concrete, at the north east corner of the fuel compound of the Marine Division Building.
MBM 003This consists of a brass hexagonal bolt surmounted by a copper plate inscribed 'MBM 003 1981', set in concrete, at the north west corner of the Watchkeeper's Hut (Hut reported to of been removed in 1990).
MBM 004This consists of a stainless hexagonal bolt set in squared concrete platform, situated at the west side of the Marine Divison flagpole.

Datum Levels

Datum of data is tide gauge zero.

Tide Gauge Zero (TGZ)2.168m below TGBM
TGZ0.294m below Chart Datum

Quality Assessment by the UH Sea Level Centre

Comment

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

YearCI(%)Missing DataReplaced Gaps or Bad DataQuestionable Fluctuations
19759233-52,167-174nonenone
197699265-267nonenone
1977100nonenonenone
19789988-89,177-178nonenone
197974139-140,146-147,151-152,162-163,168-256(13)144-(05)145 (15)148-(05)149none
1980100nonenonenone
1981972-4,126-127,182-186nonenone
1982100nonenonenone
198399345-347none210-211
1984100nonenonenone
198599215-218nonenone
1986100nonenonenone
1987100nonenonenone
1988100nonenonenone
1989100nonenonenone
1990100nonenonenone
1991100nonenonenone
1992100nonenone211-216,240-247
1993100nonenonenone
19949891-94,151-152,177-180(00)122-(23)122none
1995100nonenonenone
1996100nonenonenone
199781181-250nonenone
199895207-209,210-214,250-252,272-280,362-363nonenone
199999159-160,180-181nonenone
2000100nonenonenone
200199189-193nonenone