Meters above the Mediterranean

Meters above the Mediterranean (Dutch: Normaal Mediterraans Pijl) is the vertical datum used in Brunant to measure elevation, referring to the average water level of the Mediterranean Sea at The Port in Koningstad.

Meters above the Mediterranean is abbreviated to m MB in English and NMP in Dutch.

Gauging station
The gauging station in Koningstad was founded in 1926 by the military geographical section of the Armed Forces, which established an observatory in The Port. Previous measures of elevation took place at Adriankastel on the south bank of Dortmund River.

The average water surface elevation at Koningstad became the datum valid for the whole of Brunant. Prior to 1926, Brunant used to the Marseille Gauge in France.