{"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":9,"model_version":"ifs-gpid161","segment_start":"2026-08-01","permalink":"/station/ALL/model/ifs_hres/lead/9/","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",16,15.938,2,2.361,-0.783,3.112,0.149,0.299,0.451,0.921,0.048,-0.463,2.018,2.766,-1.555,-0.274,2.601,3.549,0.083,0.21,"2026-08-10","2026-08-30"],[0,"tmax","nearest","30d",16,15.938,2,2.376,-0.704,3.143,0.154,0.307,0.467,0.929,0.042,-0.476,1.994,2.792,-1.477,-0.19,2.571,3.623,0.102,0.202,"2026-08-10","2026-08-30"],[12,"tmax","bilinear","30d",15,22.467,2,2.679,-1.985,3.344,0.137,0.239,0.36,0.955,-0.078,-0.449,2.349,2.885,-2.36,-1.411,2.937,3.587,0.117,0.159,"2026-08-10","2026-08-30"],[12,"tmax","nearest","30d",15,22.467,2,2.687,-1.996,3.411,0.164,0.281,0.368,0.983,-0.081,-0.492,2.271,2.919,-2.393,-1.394,2.907,3.668,0.139,0.21,"2026-08-10","2026-08-30"],[0,"tmax","bilinear","365d",16,15.938,2,2.361,-0.783,3.112,0.149,0.299,0.451,0.921,0.048,-0.463,1.996,2.809,-1.845,-0.182,2.608,3.609,0.039,0.225,"2026-08-10","2026-08-30"],[0,"tmax","nearest","365d",16,15.938,2,2.376,-0.704,3.143,0.154,0.307,0.467,0.929,0.042,-0.476,1.98,2.835,-1.772,-0.108,2.583,3.668,0.062,0.209,"2026-08-10","2026-08-30"],[12,"tmax","bilinear","365d",15,22.467,2,2.679,-1.985,3.344,0.137,0.239,0.36,0.955,-0.078,-0.449,2.104,2.887,-2.401,-1.351,2.586,3.608,0.116,0.16,"2026-08-10","2026-08-30"],[12,"tmax","nearest","365d",15,22.467,2,2.687,-1.996,3.411,0.164,0.281,0.368,0.983,-0.081,-0.492,1.89,2.929,-2.419,-1.267,2.469,3.695,0.137,0.239,"2026-08-10","2026-08-30"],[0,"tmax","bilinear","90d",16,15.938,2,2.361,-0.783,3.112,0.149,0.299,0.451,0.921,0.048,-0.463,1.99,2.775,-1.99,-0.223,2.577,3.572,0.021,0.226,"2026-08-10","2026-08-30"],[0,"tmax","nearest","90d",16,15.938,2,2.376,-0.704,3.143,0.154,0.307,0.467,0.929,0.042,-0.476,1.972,2.801,-1.919,-0.143,2.55,3.637,0.062,0.209,"2026-08-10","2026-08-30"],[12,"tmax","bilinear","90d",15,22.467,2,2.679,-1.985,3.344,0.137,0.239,0.36,0.955,-0.078,-0.449,2.097,2.883,-2.371,-1.34,2.565,3.579,0.119,0.16,"2026-08-10","2026-08-30"],[12,"tmax","nearest","90d",15,22.467,2,2.687,-1.996,3.411,0.164,0.281,0.368,0.983,-0.081,-0.492,1.84,2.925,-2.402,-1.267,2.413,3.68,0.138,0.251,"2026-08-10","2026-08-30"],[0,"tmax","bilinear","all",16,15.938,2,2.361,-0.783,3.112,0.149,0.299,0.451,0.921,0.048,-0.463,1.979,2.797,-1.778,-0.164,2.606,3.558,0.038,0.239,"2026-08-10","2026-08-30"],[0,"tmax","nearest","all",16,15.938,2,2.376,-0.704,3.143,0.154,0.307,0.467,0.929,0.042,-0.476,1.955,2.809,-1.71,-0.075,2.572,3.631,0.062,0.217,"2026-08-10","2026-08-30"],[12,"tmax","bilinear","all",15,22.467,2,2.679,-1.985,3.344,0.137,0.239,0.36,0.955,-0.078,-0.449,2.103,2.882,-2.408,-1.333,2.585,3.591,0.113,0.161,"2026-08-10","2026-08-30"],[12,"tmax","nearest","all",15,22.467,2,2.687,-1.996,3.411,0.164,0.281,0.368,0.983,-0.081,-0.492,1.887,2.925,-2.424,-1.267,2.466,3.684,0.136,0.241,"2026-08-10","2026-08-30"],[0,"tmin","bilinear","30d",16,15.938,2,2.354,1.627,3.027,0.165,0.341,0.459,0.729,-0.137,-0.439,2.082,2.566,1.06,1.947,2.683,3.288,0.126,0.188,"2026-08-10","2026-08-30"],[0,"tmin","nearest","30d",16,15.938,2,2.445,1.69,3.136,0.161,0.306,0.428,0.74,-0.181,-0.462,2.172,2.657,1.108,2.013,2.799,3.393,0.12,0.205,"2026-08-10","2026-08-30"],[12,"tmin","bilinear","30d",15,22.467,2,1.877,0.646,2.353,0.161,0.37,0.532,0.592,0.076,-0.153,1.666,2.029,0.429,0.966,2.088,2.512,0.135,0.195,"2026-08-10","2026-08-30"],[12,"tmin","nearest","30d",15,22.467,2,1.954,0.656,2.482,0.192,0.353,0.501,0.612,0.038,-0.191,1.726,2.113,0.426,0.995,2.183,2.648,0.149,0.237,"2026-08-10","2026-08-30"],[0,"tmin","bilinear","365d",16,15.938,2,2.354,1.627,3.027,0.165,0.341,0.459,0.729,-0.137,-0.439,1.945,2.568,0.892,1.951,2.587,3.3,0.112,0.188,"2026-08-10","2026-08-30"],[0,"tmin","nearest","365d",16,15.938,2,2.445,1.69,3.136,0.161,0.306,0.428,0.74,-0.181,-0.462,2.056,2.658,0.958,2.025,2.715,3.412,0.111,0.226,"2026-08-10","2026-08-30"],[12,"tmin","bilinear","365d",15,22.467,2,1.877,0.646,2.353,0.161,0.37,0.532,0.592,0.076,-0.153,1.584,2.039,0.415,1.109,1.976,2.52,0.13,0.203,"2026-08-10","2026-08-30"],[12,"tmin","nearest","365d",15,22.467,2,1.954,0.656,2.482,0.192,0.353,0.501,0.612,0.038,-0.191,1.664,2.129,0.405,1.132,2.098,2.653,0.148,0.243,"2026-08-10","2026-08-30"],[0,"tmin","bilinear","90d",16,15.938,2,2.354,1.627,3.027,0.165,0.341,0.459,0.729,-0.137,-0.439,1.914,2.56,0.852,1.94,2.493,3.288,0.115,0.188,"2026-08-10","2026-08-30"],[0,"tmin","nearest","90d",16,15.938,2,2.445,1.69,3.136,0.161,0.306,0.428,0.74,-0.181,-0.462,1.99,2.648,0.915,2.012,2.575,3.396,0.114,0.236,"2026-08-10","2026-08-30"],[12,"tmin","bilinear","90d",15,22.467,2,1.877,0.646,2.353,0.161,0.37,0.532,0.592,0.076,-0.153,1.643,2.033,0.415,1.145,2.047,2.516,0.13,0.195,"2026-08-10","2026-08-30"],[12,"tmin","nearest","90d",15,22.467,2,1.954,0.656,2.482,0.192,0.353,0.501,0.612,0.038,-0.191,1.711,2.113,0.408,1.181,2.148,2.652,0.146,0.238,"2026-08-10","2026-08-30"],[0,"tmin","bilinear","all",16,15.938,2,2.354,1.627,3.027,0.165,0.341,0.459,0.729,-0.137,-0.439,1.95,2.577,0.893,2.003,2.565,3.306,0.11,0.188,"2026-08-10","2026-08-30"],[0,"tmin","nearest","all",16,15.938,2,2.445,1.69,3.136,0.161,0.306,0.428,0.74,-0.181,-0.462,2.045,2.662,0.957,2.086,2.699,3.41,0.107,0.227,"2026-08-10","2026-08-30"],[12,"tmin","bilinear","all",15,22.467,2,1.877,0.646,2.353,0.161,0.37,0.532,0.592,0.076,-0.153,1.584,2.054,0.409,1.112,1.986,2.535,0.126,0.2,"2026-08-10","2026-08-30"],[12,"tmin","nearest","all",15,22.467,2,1.954,0.656,2.482,0.192,0.353,0.501,0.612,0.038,-0.191,1.661,2.139,0.403,1.149,2.098,2.675,0.141,0.244,"2026-08-10","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",0,9,"tmax","90d","aifs_single","ifs_hres",16,0.332,-0.334,0.66,false,"bilinear"],["ALL",0,9,"tmax","90d","gfs","ifs_hres",16,0.205,-0.435,0.709,false,"bilinear"],["ALL",0,9,"tmax","90d","graphcast_ifs","ifs_hres",16,1.043,-0.018,1.55,false,"bilinear"],["ALL",0,9,"tmax","90d","ifs_hres","persistence",16,-0.119,-0.402,0.5,false,"bilinear"],["ALL",0,9,"tmin","90d","aifs_single","ifs_hres",16,-0.358,-0.703,-0.135,true,"bilinear"],["ALL",0,9,"tmin","90d","gfs","ifs_hres",16,0.052,-0.237,0.56,false,"bilinear"],["ALL",0,9,"tmin","90d","graphcast_ifs","ifs_hres",16,-0.369,-0.623,0.191,false,"bilinear"],["ALL",0,9,"tmin","90d","ifs_hres","persistence",16,0.283,0.064,0.605,true,"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":[]}