Updating states and parameters are sometimes at odds with each other

jzwart / delaware-water-temp

Data assimilation estimates of Delaware River Basin water temperature for both streams and lakes.

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Updating states and parameters are sometimes at odds with each other #22

Open jzwart opened 3 years ago

jzwart commented 3 years ago

Updating both gw_sum (state) and gw_tau (parameter) can cause unstable and/or unrealistic water temperature predictions. This is because gw_sum and gw_tau are used to estimate average inflowing groundwater temperature (code), and adjusting both at the same time can cause instability.

Recommend updating state and keeping parameter constant