{"castcheck_version":"0.1.0","schema_version":"0.1","methodology_version":"0.2","generated_at":"2026-08-31T03:51:00+00:00","computed_at":"2026-08-31T03:51:00+00:00","data_through":"2026-08-30","next_update":"2026-08-31T11:00:00+00:00","window":{"type":"multiple","days":null,"start":"2024-01-02","end":"2026-08-30"},"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","hit1f":"fraction","hit2f":"fraction","hit3f":"fraction","skill_persistence":"fraction","init_hour":"UTC hour","lead_day":"days"},"method":{"ci":"circular moving-block bootstrap over climatological days","resamples":1000,"level":0.95,"block":"7 days","min_n":30,"ref":"https://castcheck.zifanzhang.com/methodology/"},"truth":{"source":"NWS Daily Climate Report (CLI), first final issuance after local midnight","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","station_id":"ALL","model_id":"ifs_hres","lead_day":8,"model_version":"ifs-gpid161","segment_start":"2026-08-01","permalink":"/station/ALL/model/ifs_hres/lead/8/","scores":{"columns":["init_hour","variable","method","window","n","n_stations","n_flagged","mae","bias","rmse","hit1f","hit2f","hit3f","mae_debiased","skill_persistence","skill_persistence_debiased","mae_ci_low","mae_ci_high","bias_ci_low","bias_ci_high","rmse_ci_low","rmse_ci_high","hit1f_ci_low","hit1f_ci_high","period_start","period_end"],"rows":[[0,"tmax","bilinear","30d",17,22.941,2,2.393,-1.451,3.032,0.146,0.279,0.413,0.405,0.03,0.443,2.103,2.624,-1.644,-1.109,2.671,3.345,0.125,0.185,"2026-08-09","2026-08-30"],[0,"tmax","nearest","30d",17,22.941,2,2.512,-1.448,3.207,0.138,0.272,0.405,0.411,-0.018,0.434,2.227,2.741,-1.628,-1.078,2.838,3.505,0.125,0.168,"2026-08-09","2026-08-30"],[12,"tmax","bilinear","30d",17,22.941,2,2.34,-1.678,2.894,0.123,0.259,0.403,0.632,0.052,0.129,2.115,2.531,-1.96,-1.327,2.616,3.096,0.096,0.17,"2026-08-09","2026-08-30"],[12,"tmax","nearest","30d",17,22.941,2,2.458,-1.71,3.039,0.113,0.249,0.39,0.634,0.004,0.127,2.245,2.62,-1.99,-1.356,2.759,3.227,0.094,0.148,"2026-08-09","2026-08-30"],[0,"tmax","bilinear","365d",17,22.941,2,2.393,-1.451,3.032,0.146,0.279,0.413,0.405,0.03,0.443,1.901,2.652,-1.672,-1.005,2.565,3.393,0.124,0.196,"2026-08-09","2026-08-30"],[0,"tmax","nearest","365d",17,22.941,2,2.512,-1.448,3.207,0.138,0.272,0.405,0.411,-0.018,0.434,2.095,2.763,-1.649,-0.956,2.704,3.543,0.124,0.201,"2026-08-09","2026-08-30"],[12,"tmax","bilinear","365d",17,22.941,2,2.34,-1.678,2.894,0.123,0.259,0.403,0.632,0.052,0.129,2.071,2.548,-1.993,-1.274,2.497,3.129,0.093,0.217,"2026-08-09","2026-08-30"],[12,"tmax","nearest","365d",17,22.941,2,2.458,-1.71,3.039,0.113,0.249,0.39,0.634,0.004,0.127,2.137,2.633,-2.028,-1.282,2.616,3.267,0.094,0.174,"2026-08-09","2026-08-30"],[0,"tmax","bilinear","90d",17,22.941,2,2.393,-1.451,3.032,0.146,0.279,0.413,0.405,0.03,0.443,1.967,2.632,-1.666,-1.019,2.577,3.362,0.126,0.196,"2026-08-09","2026-08-30"],[0,"tmax","nearest","90d",17,22.941,2,2.512,-1.448,3.207,0.138,0.272,0.405,0.411,-0.018,0.434,2.105,2.746,-1.651,-0.97,2.72,3.52,0.126,0.185,"2026-08-09","2026-08-30"],[12,"tmax","bilinear","90d",17,22.941,2,2.34,-1.678,2.894,0.123,0.259,0.403,0.632,0.052,0.129,2.077,2.524,-1.986,-1.276,2.497,3.092,0.096,0.217,"2026-08-09","2026-08-30"],[12,"tmax","nearest","90d",17,22.941,2,2.458,-1.71,3.039,0.113,0.249,0.39,0.634,0.004,0.127,2.137,2.614,-2.013,-1.306,2.616,3.224,0.095,0.174,"2026-08-09","2026-08-30"],[0,"tmax","bilinear","all",17,22.941,2,2.393,-1.451,3.032,0.146,0.279,0.413,0.405,0.03,0.443,2.033,2.628,-1.665,-1.017,2.617,3.354,0.123,0.194,"2026-08-09","2026-08-30"],[0,"tmax","nearest","all",17,22.941,2,2.512,-1.448,3.207,0.138,0.272,0.405,0.411,-0.018,0.434,2.141,2.739,-1.648,-0.96,2.735,3.508,0.125,0.196,"2026-08-09","2026-08-30"],[12,"tmax","bilinear","all",17,22.941,2,2.34,-1.678,2.894,0.123,0.259,0.403,0.632,0.052,0.129,2.072,2.541,-1.994,-1.277,2.497,3.11,0.09,0.209,"2026-08-09","2026-08-30"],[12,"tmax","nearest","all",17,22.941,2,2.458,-1.71,3.039,0.113,0.249,0.39,0.634,0.004,0.127,2.159,2.628,-2.02,-1.298,2.616,3.237,0.093,0.174,"2026-08-09","2026-08-30"],[0,"tmin","bilinear","30d",17,22.941,2,1.926,1.03,2.506,0.195,0.38,0.531,0.489,0.074,0.057,1.734,2.082,0.883,1.19,2.284,2.68,0.158,0.224,"2026-08-09","2026-08-30"],[0,"tmin","nearest","30d",17,22.941,2,2.032,1.034,2.635,0.2,0.346,0.52,0.482,0.024,0.07,1.805,2.2,0.887,1.201,2.389,2.815,0.139,0.277,"2026-08-09","2026-08-30"],[12,"tmin","bilinear","30d",17,22.941,2,1.837,0.973,2.394,0.236,0.405,0.559,0.546,0.117,-0.054,1.646,1.999,0.768,1.229,2.171,2.588,0.201,0.261,"2026-08-09","2026-08-30"],[12,"tmin","nearest","30d",17,22.941,2,1.929,0.98,2.52,0.2,0.395,0.544,0.563,0.073,-0.087,1.711,2.095,0.766,1.234,2.269,2.727,0.177,0.235,"2026-08-09","2026-08-30"],[0,"tmin","bilinear","365d",17,22.941,2,1.926,1.03,2.506,0.195,0.38,0.531,0.489,0.074,0.057,1.688,2.089,0.863,1.225,2.245,2.678,0.149,0.226,"2026-08-09","2026-08-30"],[0,"tmin","nearest","365d",17,22.941,2,2.032,1.034,2.635,0.2,0.346,0.52,0.482,0.024,0.07,1.742,2.223,0.875,1.249,2.336,2.82,0.125,0.304,"2026-08-09","2026-08-30"],[12,"tmin","bilinear","365d",17,22.941,2,1.837,0.973,2.394,0.236,0.405,0.559,0.546,0.117,-0.054,1.59,2.006,0.769,1.433,2.105,2.612,0.196,0.262,"2026-08-09","2026-08-30"],[12,"tmin","nearest","365d",17,22.941,2,1.929,0.98,2.52,0.2,0.395,0.544,0.563,0.073,-0.087,1.653,2.106,0.787,1.486,2.186,2.73,0.175,0.261,"2026-08-09","2026-08-30"],[0,"tmin","bilinear","90d",17,22.941,2,1.926,1.03,2.506,0.195,0.38,0.531,0.489,0.074,0.057,1.728,2.096,0.873,1.194,2.268,2.692,0.15,0.225,"2026-08-09","2026-08-30"],[0,"tmin","nearest","90d",17,22.941,2,2.032,1.034,2.635,0.2,0.346,0.52,0.482,0.024,0.07,1.788,2.224,0.879,1.235,2.374,2.826,0.123,0.304,"2026-08-09","2026-08-30"],[12,"tmin","bilinear","90d",17,22.941,2,1.837,0.973,2.394,0.236,0.405,0.559,0.546,0.117,-0.054,1.617,2.033,0.75,1.433,2.137,2.62,0.193,0.261,"2026-08-09","2026-08-30"],[12,"tmin","nearest","90d",17,22.941,2,1.929,0.98,2.52,0.2,0.395,0.544,0.563,0.073,-0.087,1.68,2.123,0.756,1.437,2.233,2.769,0.175,0.25,"2026-08-09","2026-08-30"],[0,"tmin","bilinear","all",17,22.941,2,1.926,1.03,2.506,0.195,0.38,0.531,0.489,0.074,0.057,1.691,2.12,0.858,1.206,2.255,2.703,0.146,0.226,"2026-08-09","2026-08-30"],[0,"tmin","nearest","all",17,22.941,2,2.032,1.034,2.635,0.2,0.346,0.52,0.482,0.024,0.07,1.738,2.255,0.877,1.234,2.344,2.837,0.111,0.304,"2026-08-09","2026-08-30"],[12,"tmin","bilinear","all",17,22.941,2,1.837,0.973,2.394,0.236,0.405,0.559,0.546,0.117,-0.054,1.597,2.032,0.742,1.368,2.103,2.627,0.192,0.261,"2026-08-09","2026-08-30"],[12,"tmin","nearest","all",17,22.941,2,1.929,0.98,2.52,0.2,0.395,0.544,0.563,0.073,-0.087,1.675,2.127,0.753,1.406,2.192,2.776,0.176,0.246,"2026-08-09","2026-08-30"]]},"pairwise_scope":{"window":"90d","init_hour":0,"method":"bilinear","note":"every window/init/method is in pairwise/latest.json"},"pairwise":{"columns":["station_id","init_hour","lead_day","variable","window","model_a","model_b","n_common","mae_diff","ci_low","ci_high","significant","method"],"rows":[["ALL",0,8,"tmax","90d","aifs_single","ifs_hres",17,0.203,-0.257,0.75,false,"bilinear"],["ALL",0,8,"tmax","90d","gfs","ifs_hres",17,0.028,-0.302,0.312,false,"bilinear"],["ALL",0,8,"tmax","90d","graphcast_ifs","ifs_hres",17,1.285,0.777,1.697,true,"bilinear"],["ALL",0,8,"tmax","90d","ifs_hres","persistence",17,-0.074,-0.516,0.146,false,"bilinear"],["ALL",0,8,"tmin","90d","aifs_single","ifs_hres",17,-0.247,-0.493,-0.118,true,"bilinear"],["ALL",0,8,"tmin","90d","gfs","ifs_hres",17,0.301,0.137,0.498,true,"bilinear"],["ALL",0,8,"tmin","90d","graphcast_ifs","ifs_hres",17,-0.108,-0.424,0.071,false,"bilinear"],["ALL",0,8,"tmin","90d","ifs_hres","persistence",17,-0.155,-0.396,0.264,false,"bilinear"]]},"series_days":90,"series_scope":{"init_hour":0,"method":"bilinear","note":"other init/method slices and the matching forecast and observation values are in /data/daily_errors.csv.gz"},"series":[]}