Sealevel Station Catalog (SSC)
Station catalog metadata [edit][station overview]
Station NameJohnston Island
CountryUnited States
DateLastModified2015-10-22 19:02:29
Linked codes
IOC: johnJohnston_US16.739-169.5233prs, rad, enc, bat, sw1, sw2
GLOSS: 109Johnston Is., Hawaiian Is.16.73333-169.53333Float, Bubbler, Acoustic
UHSLC: 52Australia113.652001984-04-08N/A
PTWC: johnJohnston_US16.7363-169.5283prs, rad
PSMSL: 598JOHNSTON ISLAND16.738333-169.53N/A
SONEL_TG: 2908JOHNSTON ISLAND16.73629000-169.52823100N/A
Distributed metadata source: IOC Sea Level Station Monitoring Facility john
GTS station code15D142A4
GTS message typeSXHW11
Transmit interval (min)5
Local ContactUniversity of Hawaii Sea Level Center ( USA )
Added to the system2008-06-19 13:14:00
ConnectionGTS message
Sensor 1
  Type of sensorprs
  Sampling rate (min)1
  Units of measurem
  First value5
  Reversed orderyes
Sensor 2
  Type of sensorrad
  Sampling rate (min)1
  Units of measurem
  First value18
  Reversed orderyes
Sensor 3
  Type of sensorenc
  Sampling rate (min)5
  Units of measurem
  First value31
  Reversed orderyes
Sensor 4
  Type of sensorsw1
  Sampling rate (min)60
  Units of measuremin
  First value38
  Reversed orderno
Sensor 5
  Type of sensorsw2
  Sampling rate (min)60
  Units of measuremin
  First value42
  Reversed orderno
Sensor 6
  Type of sensorbat
  Sampling rate (min)5
  Units of measureV
  First value46
  Reversed orderno
Distributed metadata source: GLOSS Station Handbook
Time Zone165W, GMT - 11hrs
Additional parametersSurface temperature, density
Tide gauge benchmarksBenchmark 13(1955) is the primary benchmark (PBM) stamped 'NO 13 1955' set in a concrete bulkhead cap at the inshore end of the small boat pier
Benchmark relationshipsTGBM is 9.35ft above Tide Gauge Zero (Station Datum) NOAA Chart Datum (MLLW) is 1.74ft above Station Datum Mean Sea Level (1960-1978) is 2.81ft above Station Datum
Auxiliary benchmarks10 additional benchmarks are levelled to the TGBM and the Tide Station on a yearly basis (BM 21, BM 28, BM 22, BM 19, BM L, BM 6, BM 12, BM 14, BM MON JOHN, BM NO 1 JOE)
Other relevant informationNOAA can no longer travel to the gauge
Other relevant codesUHSLC 052
Distributed metadata source: PTWC COMP META file
DCP ID15D142A4
Samp Rate1
Num# Samp10
Xmt Int.005
Fst Min.0002
Data availability
IOC Sea Level Station Monitoring Facility - realtime graph for 'john'
PSMSL Annual Mean Sea Level for '598'