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- Change the frequency of nudging tendencies from the default value of every hour, to every half an hour (
model_times_per_day = 48
) for the 1 degree simulations. (This is a higher number in MUSICAv0 regionally refined simulations). - Update the number of nudge times (i.e. how often the model reads the meteorology files) to every 3 hours (
nudge_times_per_day = 8
) to match the maximum available meteorology. - Use an intermediate to long nudging strength defined by the nudging coefficient.A reference that investigates nudging strength is here: The impact of nudging strength on simulation results has been evaluated in several papers: Gaubert et al. ACP, 2020 (https://acpdoi.copernicus.org/articles10.5194/acp-20/14617/2020-14617-2020), Davis et al., ACP, 2022 (https://doi.org/10.5194/acp-2022-14617-2020-discussion.html197-2022).
To define the meteorology check and adjust the following in user_nl_cam
:
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