| IT {Tides} | R Documentation |
Inundation time
Description
Calculate inundation times, i.e. time intervals for which water level h > h0. Care must be taken when there are gaps (long time periods for which there is no data )in the time series. Either the erroneous values have to removed manually, or a wrapper making use of the function gapsts can be used.
Usage
IT(h, h0, hoffset = 0, dtMax = 15, unit = "mins")
Arguments
h |
Water level time series. data frame with time and h column |
h0 |
Reference level, either single valued or vector with same length as h |
hoffset |
Offset level to cope with small fluctuations due to rain, ripples. h <= h0 + hoffset is considered dry; h> h0+hoffset is considered wet |
dtMax |
Maximum time interval in continuous water level series. Larger time intervals are considered gaps |
unit |
Unit of dtMax. |
Value
a list containing:
IT Data frame with start time (t1), end time (t2) and duration (dt, unit = unit) of inundation
DT Data frame with start time (t1), end time (t2) and duration (dt, unit = unit) of dry time
Author(s)
Tom Cox <tom.cox@uantwerp.be>