Data for Shannon - water level

Sensor no. 0001

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Only data for the past 5 weeks are shown.

Times are always shown in GMT. Levels are relative to the bottom of the staff gauge at each station, not to a common datum. Actual levels to Ordnance datum may be checked for individual stations, however users should note that two datums are in use. Malin Head datum is a mean sea level datum, Poolbeg datum is a low water datum. An approximate correction is Malin + 2.7m ~ Poolbeg.

To use the graph:
Zoom in: click and drag a horizontal or vertical box.
Zoom full: double click.
Smooth data: change roll period (text box bottom left of chart), from 1 to e.g. 24.

Graph by: Dygraphs