GLOSS Station Handbook

Station information sheet

GLOSS number8
Station name


Time zone045E, GMT + 3hrs
Latitude (+ve N)-4.05
Longitude (+ve E)39.66666
Observation period(s)float 1986-unknown, pressure and radar installed 2006
Responsible countryKenya
Authority responsible
for tide gauge
Dr. M. Merrifield, University of Hawaii, Dept. of Oceanography, Hawaii 96822, U.S.A. and: Kenya Marine and Fisheries Research Inst.
GLOSS contactKenya
Committed to GLOSSYes
Digital dataYes
Data acquisition rateHourly intervals
Fast delivery data at UHSLCDownload h101.dat from UHSLC   Format documentation for UHSLC data
High frequency data at BODCDownload from BODC   View Mombasa site history  
High frequency data at UHSLCDownload from UHSLC   Download documentation qa101a.dmt from UHSLC   Format documentation for UHSLC data
Real-time data availableNo
Tide gauge benchmarksBM@ is a bolt fixed on the tide staff at 3.8m above tide staff zero.
Benchmark relationshipsTide gauge zero (TGZ) = Admiralty Chart Datum - 0.942m TGZ = East African Railways Datum - 0.912m TGZ = Survey of Kenya Datum - 2.790m (from 1989) TGZ = 3.800m below BM@
Auxiliary benchmarksBM1 (TGZ is 5.683m below BM1 - June 1989) BM2 (TGZ is 5.850m below BM2 - June 1989) BM3 (TGZ is 13.883m below BM3 - April 1987) BM N-3 (TGZ is 6.226m below TGZ - June 1989)
Data at PSMSL 
Annual MSL (RLR) dataDownload annual MSL (RLR) data for Mombasa
Annual MSL (RLR) plotView annual MSL (RLR) plot for Mombasa
MSL methodaverage of hourly heights
PSMSL code370
Other relevant codesUHSLC 101
Additional information 
Other relevant informationMunro gauge was located at different place in the same port until 1976. Valeport pneumatic gauge situated 350km to the north of Lamu since December 1988.
Nearest Met. stationMombasa International Airport
Last updated1993-12-05

Related BODC pages

Sea level portal      World Ocean Circulation Experiment (WOCE) — Sea  level
UK Tide Gauge Network     Climate Variability and Predictability (CLIVAR)
GLOSS project page  


Related external links

Global Sea Level Observing System (GLOSS)     Permanent Service for Mean Sea Level (PSMSL)
University of Hawai`i Sea Level Centre (UHSLC)  World Ocean Circulation Experiment (WOCE)


Permanent Service for Mean Sea Level (PSMSL) Global Sea Level Observing System (GLOSS) Station Handbook Intergovernmental Oceanographic Commission (IOC)