R: Smooth temperature time series using a Kalman filter/...
temp.kalman
R Documentation
Smooth temperature time series using a Kalman filter/ smoother
Description
Smoothes a temperature time series uses a Kalman filter/ smoother.
Usage
temp.kalman(wtr, watts, ampH=1, ...)
Arguments
wtr
Vector (regular time series) of water temperature in degrees C
watts
estimate of watts entering the layer at each time step, from watts.in
ampH
factor by which to artificially amplify the observation error variance, H
...
parameters to be passed to optim
Details
basic model process is x[t] = beta*x[t-1] + c1*watts[t-1]
Value
a smoothed temperature time series
Author(s)
Ryan Batt
References
Batt, Ryan D. and Stephen R. Carpenter. 2012. Free-water lake metabolism:
addressing noisy time series with a Kalman filter. Limnology and
Oceanography: Methods 10: 20-30. doi: 10.4319/lom.2012.10.20