{"castcheck_version":"0.3.3","schema_version":"0.3","methodology_version":"0.3.1","generated_at":"2026-10-28T17:03:06+00:00","computed_at":"2026-10-28T17:03:06+00:00","data_through":"2026-10-28","next_update":"2026-10-29T11:00:00+00:00","window":{"type":"multiple","days":null,"start":"2026-01-01","end":"2026-10-28"},"units":{"mae":"degC","bias":"degC","rmse":"degC","mae_ci_low":"degC","mae_ci_high":"degC","bias_ci_low":"degC","bias_ci_high":"degC","mae_diff":"degC","ci_low":"degC","ci_high":"degC","n":"days","n_common":"days","n_debiased":"days","hit1f":"fraction","hit2f":"fraction","hit3f":"fraction","hit1f_ci_low":"fraction","hit1f_ci_high":"fraction","skill_persistence":"fraction","skill_persistence_debiased":"fraction","skill_ci_low":"fraction","skill_ci_high":"fraction","mae_persistence_common":"degC","mae_debiased":"degC","p_boot":"probability","init_hour":"UTC hour","lead_day":"days"},"method":{"ci":"circular moving-block bootstrap on each group's own realized date axis","resamples":1000,"level":0.95,"block":"7 days","min_n":30,"ci_min_n":28,"ci_min_blocks":4,"ci_absent":"null when n < ci_min_n or fewer than ci_min_blocks blocks","proportions":"Wilson score intervals (hit rates), not bootstrapped","skill_denominator":"mae_persistence_common on n_common days","debiasing":"out-of-sample: bias of the trailing 30 scored days before each day, min 15","multiplicity":"pairwise carries distinguishable_uncorrected, p_boot and distinguishable_holm; only the Holm flag is marked on the site","skill_min_n_common":10,"skill_reliable":"false when n_common < 10; the value is still published, but the site shows an em dash for it","ref":"https://castcheck.zifanzhang.com/methodology/"},"truth":{"source":"observed 2 m temperature at 00/06/12/18 UTC (routine METAR within +/-35 min) for t2* and for tmax_s/tmin_s; NWS Daily Climate Report (CLI), first final issuance after local midnight, for tmax_cli/tmin_cli","fallback":["CF6 monthly summary","hourly station observations (flagged)"],"policy":"first-final; later corrections are stored but never change a published score"},"license":"CC-BY-4.0 (CastCheck derived data); see /data/ for upstream licences","site":"https://castcheck.zifanzhang.com","scope":"station_id=ALL","station_id":"ALL","moved_to":"/station/ALL/cards.json","note":"the per-station scores now live in the station's card bundle, together with the pairwise comparisons and daily error series that used to duplicate them; read `scores` in that document.","columns":["model_id","init_hour","lead_day","variable","method","window","n","n_stations","n_flagged","mae","bias","rmse","hit1f","hit2f","hit3f","mae_debiased","n_debiased","n_common","mae_persistence_common","skill_persistence","skill_persistence_debiased","skill_ci_low","skill_ci_high","mae_ci_low","mae_ci_high","bias_ci_low","bias_ci_high","rmse_ci_low","rmse_ci_high","hit1f_ci_low","hit1f_ci_high","model_version","segment_start","period_start","period_end","skill_reliable"],"rows":[],"n_rows":17208}