Metric data for 1942 supplied by B.O.D.C.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Dieppe              190/031 RLR(1977) is 12.4m below BM NGFNCP3.2
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jul-1994
Informal information suggests local sinking near gauge.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Aug-2010
Tide gauge re-instated 2009 TGBM and Chart Datum remain the same see email from Ronan Creach 19.08.10. Therefore the RLR factor remains 2.070m.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 27-Mar-2012
The data following the gauges re-installation in 2009 appears to be slightly higher than previous. However, when the data for Dieppe is buddy checked with both Le Havre and Boulogne the data following the gap appears to be in better agreement.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 24-Sep-2014
Using values from the SONEL website the latitude and longitude values for Dieppe have been revised.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 29-Sep-2014
New data points have been added to the data for Dieppe in particular data has been added for the period 1993-2007. Because of this the whole dataset has been re-loaded.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 15-Jul-2025
Updated the whole dataset to ensure they include all the historical data recovered recently by SHOM and the calculated monthly and annual means match those distributed by SONEL.

