Maputo - MN1 Benchmark destroyed 1999 during harbour works, and replaced by MN23 nearby. No direct relationship between the two as they didn't exist at the same time. Continuance of same datum of observations assumed to link the data together for RLR purposes. Data 19th September 1999 onwards measured by Aanderaa equipment. Maputo is now an historic station. Last data 2001.
Instituto Nacional de Hidrographia e Navegacao Av. Karl Marx No. 153 Maputo