Description
After the SMC and STC increments are added some checks are applied to ensure that the resulting values are not unphysical. These checks re-calculate the frozen soil amount ( = function of STC) in case the STC has been changed by the increments to a value below freezing.
The value used to determine freezing is 273.15 (ufs parameter con_t0c). However the NoahMP model uses 273.16 (tfreez, defined in the noahmp code). This is resulting in the post-IAU checks repeatedly melting the frozen soils for 273.15 <= STC <=273.16, which occurs relatively often as STC often sits right at freezing.
Steps to Reproduce
Run the model with land-IAU turne don.
Additional Context
N/A
Output
Description
After the SMC and STC increments are added some checks are applied to ensure that the resulting values are not unphysical. These checks re-calculate the frozen soil amount ( = function of STC) in case the STC has been changed by the increments to a value below freezing.
The value used to determine freezing is 273.15 (ufs parameter con_t0c). However the NoahMP model uses 273.16 (tfreez, defined in the noahmp code). This is resulting in the post-IAU checks repeatedly melting the frozen soils for 273.15 <= STC <=273.16, which occurs relatively often as STC often sits right at freezing.
Steps to Reproduce
Run the model with land-IAU turne don.
Additional Context
N/A
Output