Data up to 1984 were high and low waters (mean tide level). MSL thereafter.
Documentation added 2001-05-10
All Cuxhaven 2 data converted to RLR May 2001.
Documentation added 2001-06-04
Cuxhaven 2 140/012 RLR(2000) is 10.487m below TGBM
Documentation added 2010-08-09
The data for Cuxhaven was measured to Normal Null which is a German datum related to levels at Potsdam near Berlin. It is similar to ODN in the UK and NAP in Holland. It is unusual therefore that the German stations have been made RLR as this 'breaks the rules' of RLR. Data 2000 onwards is refered to TGZ.
Documentation added 2016-01-26
A value of MTL-MSL=-88 mm has been applied to the RLR data for the period 1843-1984. This value was derived from harmonic constants using the GESLA2 (high-frequency tide gauge) dataset. This value agrees well with that published by Wahl et al., NHSS, 10, 171–179, 2010, of about -9 cm.
Documentation added 2017-11-15
Data for 2011 onwards has been supplied using RLR as the datum. Therefore no adjustment needs to be applied to the data.
Documentation added 2019-09-11
The complete dataset for this station has been supplied by the Federal Waterways and Shipping Administration, provided by the Federal Institute of Hydrology.
Bundesamt fur Seeschifffahrt und Hydrographie Hamburg Bernhard-Nocht-Strasse 78 20359 Hamburg