Description Usage Arguments Value
Calculate dates of stratification or ice on/off dates. Ice on/off calculation is based on Pierson et al. (2011) formula when the upper sensor records a temperature of at least -0.1C below that of the bottom sensor. Stratification is based on the opposite principle i.e when there is a difference of +0.1C between the top and bottom sensor.
1 |
data |
dataframe; Water temperature profile data in the long form as loaded in using load.obs |
type |
character; Which dates to caclulate, either ice or stratification on/off. Defaults to 'strat'. |
days |
numeric; no. of days of consecutive days before identifying a break. Defaults to 7. |
Tmin |
numeric; Minimum temperature as a cutoff point for identifying breaks. Defaults to 0.1 |
tz |
Timezone string to be supplied to as.POSIXct. Defaults to 'UTC'. This often can be left to the default unless timezone support is specifically required. |
vector with dates of stratification or ice on/off
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