GLOSS Station Handbook

Station information sheet

GLOSS number18
Station name

Port Louis Harbour

Time zone060E, GMT + 4hrs
Latitude (+ve N)-20.15
Longitude (+ve E)57.5
Observation period(s)August 1986-
Responsible countryMauritius
Authority responsible
for tide gauge
Meteorological Service, St Paul Road, Vacoas, Mauritius
GLOSS contactMauritius
Committed to GLOSSYes
Location mapView location map for GLOSS station Port Louis Harbour
Digital dataYes
Additional parametersMean Sea Level Pressure
Data acquisition rateContinuous analogue record, but hourly values computed. Handar encoder 4 minute interval
Fast delivery data at UHSLCDownload h103.dat from UHSLC   Format documentation for UHSLC data
High frequency data at BODCDownload from BODC  Download from BODC  Download from BODC   View Port Louis Harbour site history   View BODC document #57546   View BODC document #57563  
Real-time data availableYes
Real-time data transmitted
to GLOSS Fast Centre
Real-time data plots from UHSLC
Additional parameters (real-time)Mean Sea Level Pressure
Tide gauge benchmarks1. 3m mark on tide staff 2. One brass bolt at edge of wharf of tide gauge 3. A bolt on the gauge
Benchmark relationships3m mark tied to the National Primary Levelling Network and Fundamental benchmark TTP30. The 3m mark is 1.6788m above Admiralty Chart Datum. The bolt on the gauge is 3.0488m above Admiralty Chart Datum. (February 1987 onwards)
Auxiliary benchmarksOne bolt flush with wall located about 7.5m west of station.
Data at PSMSL 
Annual MSL (RLR) dataDownload annual MSL (RLR) data for Port Louis Harbour   Download annual MSL (RLR) data for Port Louis Harbour
Annual MSL (RLR) plotView annual MSL (RLR) plot for Port Louis Harbour   View annual MSL (RLR) plot for Port Louis Harbour
MSL methodaverage of daily values
PSMSL code1673
Other relevant codesUHSLC 103
Additional information 
Other relevant informationMunro tide gauge in a stone building, corner of Quay D, dismantled in early 1970s. Zero of recorder corresponds to a marked level situated seven feet below the level of the Quay. This datum point denotes the level of the mean low water at spring tides and was selected in 1929 after taking the average of the low water spring tide levels over a 48 month period. Local levellings are undertaken at intervals of 6 months.
Nearest Met. stationMeteorological station, Vacoas
Last updated1997-12-20

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)