Shortfall day
The undershoot day call in the inland waterways , the number of days in the year in which the minimum fairway depth has fallen below the river bed due to water shortage.
Days below the limit are read in diagrams on the defined duration line .
Web links
- Table of days below the Elbe's 1998 - 2002 (PDF; 7.6 MB) BUND Elbe project.
- Days below Rhine and Moselle 2011 (PDF; 232 kB) Federal Institute for Hydrology