Mareographer

The mareograph (mareograph; literally "sea recorder") is a self-registering instrument for the continuous measurement of the sea ​​level at an oceanographic gauge station .

It belongs to the group of writing levels and was developed in the 19th century to automate the periodic reading on the traditional level staff .

With long-term registration, the mean water can be specified to the centimeter and serve as a reference level for the national survey . The level of this mean sea level corresponds approximately to the geoid .

See also

• Amsterdam level
• Kronstadt level
• Molo Sartorio
• Genoa level
• Marseille level

• Gerd Morgenschweis: Hydrometry: Theory and practice of flow measurement in open channels . Springer-Verlag, 2010, ISBN 978-3-642-05390-0 .

Web links

Commons : Mareographers  - collection of images, videos and audio files