{"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":6,"model_version":"ifs-gpid161","segment_start":"2026-08-01","permalink":"/station/ALL/model/ifs_hres/lead/6/","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",19,22.947,2,2.241,-1.228,2.752,0.134,0.273,0.429,0.464,-0.009,0.434,2.061,2.406,-1.474,-0.901,2.502,2.966,0.109,0.158,"2026-08-07","2026-08-30"],[0,"tmax","nearest","30d",19,22.947,2,2.371,-1.254,2.913,0.12,0.245,0.385,0.476,-0.068,0.419,2.203,2.532,-1.537,-0.874,2.675,3.121,0.096,0.148,"2026-08-07","2026-08-30"],[12,"tmax","bilinear","30d",19,22.947,2,2.103,-1.415,2.603,0.131,0.298,0.456,0.43,0.053,0.475,2.033,2.19,-1.672,-1.128,2.477,2.725,0.111,0.157,"2026-08-07","2026-08-30"],[12,"tmax","nearest","30d",19,22.947,2,2.198,-1.433,2.752,0.128,0.296,0.456,0.433,0.01,0.471,2.127,2.307,-1.687,-1.113,2.638,2.866,0.112,0.149,"2026-08-07","2026-08-30"],[0,"tmax","bilinear","365d",19,22.947,2,2.241,-1.228,2.752,0.134,0.273,0.429,0.464,-0.009,0.434,2.042,2.42,-1.483,-0.884,2.486,2.99,0.107,0.161,"2026-08-07","2026-08-30"],[0,"tmax","nearest","365d",19,22.947,2,2.371,-1.254,2.913,0.12,0.245,0.385,0.476,-0.068,0.419,2.189,2.541,-1.548,-0.839,2.647,3.14,0.092,0.15,"2026-08-07","2026-08-30"],[12,"tmax","bilinear","365d",19,22.947,2,2.103,-1.415,2.603,0.131,0.298,0.456,0.43,0.053,0.475,2.02,2.236,-1.736,-1.101,2.437,2.796,0.107,0.174,"2026-08-07","2026-08-30"],[12,"tmax","nearest","365d",19,22.947,2,2.198,-1.433,2.752,0.128,0.296,0.456,0.433,0.01,0.471,2.108,2.377,-1.722,-1.065,2.61,2.931,0.11,0.152,"2026-08-07","2026-08-30"],[0,"tmax","bilinear","90d",19,22.947,2,2.241,-1.228,2.752,0.134,0.273,0.429,0.464,-0.009,0.434,2.047,2.411,-1.496,-0.906,2.489,2.973,0.111,0.158,"2026-08-07","2026-08-30"],[0,"tmax","nearest","90d",19,22.947,2,2.371,-1.254,2.913,0.12,0.245,0.385,0.476,-0.068,0.419,2.196,2.537,-1.551,-0.868,2.657,3.131,0.095,0.15,"2026-08-07","2026-08-30"],[12,"tmax","bilinear","90d",19,22.947,2,2.103,-1.415,2.603,0.131,0.298,0.456,0.43,0.053,0.475,2.028,2.234,-1.705,-1.13,2.458,2.807,0.107,0.174,"2026-08-07","2026-08-30"],[12,"tmax","nearest","90d",19,22.947,2,2.198,-1.433,2.752,0.128,0.296,0.456,0.433,0.01,0.471,2.117,2.379,-1.718,-1.098,2.619,2.945,0.111,0.152,"2026-08-07","2026-08-30"],[0,"tmax","bilinear","all",19,22.947,2,2.241,-1.228,2.752,0.134,0.273,0.429,0.464,-0.009,0.434,2.043,2.403,-1.492,-0.859,2.488,2.977,0.104,0.158,"2026-08-07","2026-08-30"],[0,"tmax","nearest","all",19,22.947,2,2.371,-1.254,2.913,0.12,0.245,0.385,0.476,-0.068,0.419,2.187,2.531,-1.551,-0.818,2.65,3.126,0.096,0.15,"2026-08-07","2026-08-30"],[12,"tmax","bilinear","all",19,22.947,2,2.103,-1.415,2.603,0.131,0.298,0.456,0.43,0.053,0.475,2.022,2.22,-1.779,-1.096,2.438,2.787,0.107,0.174,"2026-08-07","2026-08-30"],[12,"tmax","nearest","all",19,22.947,2,2.198,-1.433,2.752,0.128,0.296,0.456,0.433,0.01,0.471,2.11,2.35,-1.722,-1.056,2.601,2.924,0.111,0.152,"2026-08-07","2026-08-30"],[0,"tmin","bilinear","30d",19,22.947,2,1.657,0.965,2.2,0.243,0.47,0.61,0.404,0.146,0.285,1.508,1.772,0.748,1.162,1.991,2.348,0.223,0.264,"2026-08-07","2026-08-30"],[0,"tmin","nearest","30d",19,22.947,2,1.737,0.992,2.33,0.222,0.452,0.603,0.423,0.105,0.251,1.55,1.869,0.761,1.202,2.099,2.5,0.206,0.247,"2026-08-07","2026-08-30"],[12,"tmin","bilinear","30d",19,22.947,2,1.574,0.861,2.087,0.264,0.466,0.624,0.413,0.189,0.269,1.436,1.675,0.602,1.072,1.901,2.243,0.238,0.298,"2026-08-07","2026-08-30"],[12,"tmin","nearest","30d",19,22.947,2,1.655,0.893,2.203,0.234,0.468,0.619,0.425,0.147,0.247,1.485,1.772,0.622,1.118,1.975,2.379,0.199,0.287,"2026-08-07","2026-08-30"],[0,"tmin","bilinear","365d",19,22.947,2,1.657,0.965,2.2,0.243,0.47,0.61,0.404,0.146,0.285,1.479,1.777,0.727,1.189,1.945,2.37,0.217,0.268,"2026-08-07","2026-08-30"],[0,"tmin","nearest","365d",19,22.947,2,1.737,0.992,2.33,0.222,0.452,0.603,0.423,0.105,0.251,1.516,1.878,0.742,1.242,2.038,2.586,0.204,0.272,"2026-08-07","2026-08-30"],[12,"tmin","bilinear","365d",19,22.947,2,1.574,0.861,2.087,0.264,0.466,0.624,0.413,0.189,0.269,1.403,1.681,0.529,1.104,1.849,2.244,0.235,0.311,"2026-08-07","2026-08-30"],[12,"tmin","nearest","365d",19,22.947,2,1.655,0.893,2.203,0.234,0.468,0.619,0.425,0.147,0.247,1.438,1.791,0.556,1.15,1.906,2.395,0.189,0.34,"2026-08-07","2026-08-30"],[0,"tmin","bilinear","90d",19,22.947,2,1.657,0.965,2.2,0.243,0.47,0.61,0.404,0.146,0.285,1.48,1.793,0.725,1.183,1.953,2.37,0.219,0.266,"2026-08-07","2026-08-30"],[0,"tmin","nearest","90d",19,22.947,2,1.737,0.992,2.33,0.222,0.452,0.603,0.423,0.105,0.251,1.518,1.9,0.74,1.237,2.045,2.586,0.205,0.27,"2026-08-07","2026-08-30"],[12,"tmin","bilinear","90d",19,22.947,2,1.574,0.861,2.087,0.264,0.466,0.624,0.413,0.189,0.269,1.407,1.692,0.541,1.085,1.869,2.264,0.236,0.307,"2026-08-07","2026-08-30"],[12,"tmin","nearest","90d",19,22.947,2,1.655,0.893,2.203,0.234,0.468,0.619,0.425,0.147,0.247,1.444,1.794,0.57,1.132,1.939,2.415,0.191,0.339,"2026-08-07","2026-08-30"],[0,"tmin","bilinear","all",19,22.947,2,1.657,0.965,2.2,0.243,0.47,0.61,0.404,0.146,0.285,1.483,1.776,0.713,1.183,1.94,2.37,0.219,0.268,"2026-08-07","2026-08-30"],[0,"tmin","nearest","all",19,22.947,2,1.737,0.992,2.33,0.222,0.452,0.603,0.423,0.105,0.251,1.519,1.88,0.731,1.231,2.034,2.586,0.205,0.261,"2026-08-07","2026-08-30"],[12,"tmin","bilinear","all",19,22.947,2,1.574,0.861,2.087,0.264,0.466,0.624,0.413,0.189,0.269,1.415,1.688,0.559,1.102,1.851,2.26,0.236,0.309,"2026-08-07","2026-08-30"],[12,"tmin","nearest","all",19,22.947,2,1.655,0.893,2.203,0.234,0.468,0.619,0.425,0.147,0.247,1.448,1.791,0.577,1.15,1.904,2.415,0.192,0.326,"2026-08-07","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",0,6,"tmax","90d","aifs_single","ifs_hres",19,0.062,-0.281,0.328,false,"bilinear"],["ALL",0,6,"tmax","90d","gfs","ifs_hres",19,-0.175,-0.462,0.074,false,"bilinear"],["ALL",0,6,"tmax","90d","graphcast_ifs","ifs_hres",19,0.965,0.531,1.315,true,"bilinear"],["ALL",0,6,"tmax","90d","ifs_hres","persistence",19,0.02,-0.447,0.307,false,"bilinear"],["ALL",0,6,"tmin","90d","aifs_single","ifs_hres",19,-0.153,-0.277,-0.036,true,"bilinear"],["ALL",0,6,"tmin","90d","gfs","ifs_hres",19,0.317,0.082,0.527,true,"bilinear"],["ALL",0,6,"tmin","90d","graphcast_ifs","ifs_hres",19,-0.193,-0.267,-0.029,true,"bilinear"],["ALL",0,6,"tmin","90d","ifs_hres","persistence",19,-0.284,-0.54,0.198,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":[]}