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List of snow DA changes


IMS mask


IMS mask based on altitude (>1500m)IMS mask based on SDFOR (>200)

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IMS thinning


Simple thinning (select 1 from every 36 observation)Updated thinning (select nearest IMS on a gaussian grid of 31km)

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Cap value for snow depth analysis

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Suspicious increments accumulated on IMS mask


controlbefore modificationsafter modifications

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Experiment list


Results

Results for winter 2020/21 and summer 2020 (against Andrew's control)


control (hut8)test (hybs)hybs - hut8

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RMSE for 2m temperature against analysis in the NHRMSE for 2m temperature against observations in the NH

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Scorecard for winterScorecard for summer

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Results of 9-month experiments from Dec 2020 to Aug 2021