Port Louis-A (Mauritius) Site History

History Summary

Station Port Louis-A
Country Mauritius
Latitude 20° 09.2' S
Longitude 057° 29.4' E
GLOSS No 018
Time Reference GMT (hours 00-23)
Contributor Proudman Oceanographic Laboratory, UK and Scripps Institute of Oceanography
Instrument Type Munroe, float and stilling well
Site of Gauge The gauge is in a stone building, at the corner of Quay D.
Observational periods 1942 - 1947

Reference Level

The sea level heights are referred to the zero point assigned to the tide gauge.

Additional Information

The Munro tide gauge in a stone building, at the corner of the Quay D, was dismantled in the early 1970's. The Zero of the 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. It was selected in 1929 after taking the average of the low water spring tide levels over a 48 month period.

Quality Assessment by the UH Sea Level Center


The daily or monthly means do not reveal any obvious reference level changes or trends.

Data for 1942-1947 were received from two originators. The difference in daily values between the series was steady with a mean value of 3040 mm. Thus 3040 mm was added to each value of the Proudman data and then the data sets were merged.

Year CI(%) Missing Data Replaced Gaps or Bad Data Questionable Fluctuations
1942 95 1,14-16,109-113,122-127,146-153 none 120-121,145-146
1943 96 352-365 none 154-156
1944 87 1-19,338-365 (13)075-(08)076 (07)188-(19)188 23-30,36-40,95-98,191,272-278,301,314-316,321-322,327-338
1945 62 14-24,32-38,48-50,90-156,166-167,172-174,304-307,316-365 (08)190-(14)190 68-72,264
1946 100 none (15)083-(21)083 (19)348-(08)349 98-100,105-106
1947 100 none (09)057-(16)057 (09)058-(17)058 (09)132-(19)132 (11)243-(19)243 39-42,45,96-99,365