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No independently validated within-parent claimant distribution is available. Centroid best-fit and population-proportional splits are not substituted for observed local counts.","National and geographically stratified coverage fall short of the frozen F1 band-release thresholds.","National or subgroup numeric-coverage gate failed.","Source measurement/comparability gate unresolved."]},{"phase":"F3","feature":"claimant_change","label":"Annual Claimant Count rate change, ages 16-64 (2021 minus 2020)","decision":"diagnostic_only","valid":33766,"banded":0,"coveragePct":94.65687373850639,"coverageGate":false,"measurementGate":false,"missingSensitivity":{"missing":1906,"observed":33766,"atMostOneBand":33766,"atMostOneBandPct":100.0,"maxBandShift":1,"passed":true,"method":"All unknown ranks below or above observed ranks; fixed zero-band policy; zero observations retain Z0."},"zeroPolicyUncertain":false,"failedGroups":[{"geographyType":"combined","geography":"England and Wales","total":35672,"valid":33766,"missing":1906,"validPct":94.65687373850639},{"geographyType":"country","geography":"England","total":33755,"valid":31907,"missing":1848,"validPct":94.52525551770108},{"geographyType":"region","geography":"East Midlands","total":2847,"valid":2694,"missing":153,"validPct":94.6259220231823},{"geographyType":"region","geography":"East of England","total":3758,"valid":3485,"missing":273,"validPct":92.7354976051091},{"geographyType":"region","geography":"London","total":4994,"valid":4681,"missing":313,"validPct":93.73247897476972},{"geographyType":"region","geography":"South East","total":5571,"valid":5216,"missing":355,"validPct":93.62771495243224},{"geographyType":"region","geography":"South West","total":3407,"valid":3168,"missing":239,"validPct":92.98503081890226},{"geographyType":"urbanRural","geography":"Urban","total":29557,"valid":27914,"missing":1643,"validPct":94.44124911188551}],"blockers":["1,906 LSOA2021 areas require split/complex disaggregation; the ONS exact-fit lookup provides correspondence, not claimant allocation weights. No independently validated within-parent claimant distribution is available. Centroid best-fit and population-proportional splits are not substituted for observed local counts.","National and geographically stratified coverage fall short of the frozen F1 band-release thresholds.","National or subgroup numeric-coverage gate failed.","Source measurement/comparability gate unresolved."]},{"phase":"F4","feature":"road_gradient","label":"Road-weighted terrain-gradient proxy","decision":"diagnostic_only","valid":35672,"banded":0,"coveragePct":100.0,"coverageGate":true,"measurementGate":false,"missingSensitivity":{"missing":0,"observed":35672,"atMostOneBand":35672,"atMostOneBandPct":100.0,"maxBandShift":0,"passed":true,"method":"All unknown ranks below or above observed ranks; fixed zero-band policy; zero observations retain Z0."},"zeroPolicyUncertain":false,"failedGroups":[],"blockers":["Independent road-surface grade validation absent, including bridges, tunnels, urban cuttings and upland minor roads.","Structure tags do not establish complete bridge identification; untagged roads cannot be assumed to be ground-level.","Source measurement/comparability gate unresolved."]},{"phase":"F4","feature":"steep_road_share","label":"Road-length share above 8% terrain-gradient proxy","decision":"diagnostic_only","valid":35672,"banded":0,"coveragePct":100.0,"coverageGate":true,"measurementGate":false,"missingSensitivity":{"missing":0,"observed":35672,"atMostOneBand":35672,"atMostOneBandPct":100.0,"maxBandShift":0,"passed":true,"method":"All unknown ranks below or above observed ranks; fixed zero-band policy; zero observations retain Z0."},"zeroPolicyUncertain":false,"failedGroups":[],"blockers":["Independent road-surface grade validation absent, including bridges, tunnels, urban cuttings and upland minor roads.","Structure tags do not establish complete bridge identification; untagged roads cannot be assumed to be ground-level.","Source measurement/comparability gate unresolved."]},{"phase":"F5","feature":"heat_days_25","label":"Road-weighted heat days >=25C","decision":"deferred","valid":0,"banded":0,"coveragePct":0.0,"coverageGate":false,"measurementGate":false,"missingSensitivity":{"missing":35672,"observed":0,"atMostOneBand":0,"atMostOneBandPct":0,"maxBandShift":null,"passed":false,"method":"All unknown ranks below or above observed ranks; 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registered-user authentication required.","New 1km road/grid intersections required before optional NetCDF grid outputs can enter LSOA lookup.","National or subgroup numeric-coverage gate failed.","Missing-value rank sensitivity failed or no numeric values.","Source measurement/comparability gate unresolved."]},{"phase":"F5","feature":"heat_days_30","label":"Road-weighted heat days >=30C","decision":"deferred","valid":0,"banded":0,"coveragePct":0.0,"coverageGate":false,"measurementGate":false,"missingSensitivity":{"missing":35672,"observed":0,"atMostOneBand":0,"atMostOneBandPct":0,"maxBandShift":null,"passed":false,"method":"All unknown ranks below or above observed ranks; fixed zero-band policy; zero observations retain Z0."},"zeroPolicyUncertain":false,"failedGroups":[{"geographyType":"combined","geography":"England and Wales","total":35672,"valid":0,"missing":35672,"validPct":0.0},{"geographyType":"country","geography":"England","total":33755,"valid":0,"missing":33755,"validPct":0.0},{"geographyType":"country","geography":"Wales","total":1917,"valid":0,"missing":1917,"validPct":0.0},{"geographyType":"region","geography":"East Midlands","total":2847,"valid":0,"missing":2847,"validPct":0.0},{"geographyType":"region","geography":"East of England","total":3758,"valid":0,"missing":3758,"validPct":0.0},{"geographyType":"region","geography":"London","total":4994,"valid":0,"missing":4994,"validPct":0.0},{"geographyType":"region","geography":"North East","total":1682,"valid":0,"missing":1682,"validPct":0.0},{"geographyType":"region","geography":"North West","total":4567,"valid":0,"missing":4567,"validPct":0.0},{"geographyType":"region","geography":"South East","total":5571,"valid":0,"missing":5571,"validPct":0.0},{"geographyType":"region","geography":"South West","total":3407,"valid":0,"missing":3407,"validPct":0.0},{"geographyType":"region","geography":"Wales","total":1917,"valid":0,"missing":1917,"validPct":0.0},{"geographyType":"region","geography":"West Midlands","total":3574,"valid":0,"missing":3574,"validPct":0.0},{"geographyType":"region","geography":"Yorkshire and The Humber","total":3355,"valid":0,"missing":3355,"validPct":0.0},{"geographyType":"urbanRural","geography":"Rural","total":6115,"valid":0,"missing":6115,"validPct":0.0},{"geographyType":"urbanRural","geography":"Urban","total":29557,"valid":0,"missing":29557,"validPct":0.0}],"blockers":["Exact authorised CEDA inputs not acquired; registered-user authentication required.","New 1km road/grid intersections required before optional NetCDF grid outputs can enter LSOA lookup.","National or subgroup numeric-coverage gate failed.","Missing-value rank sensitivity failed or no numeric values.","Source measurement/comparability gate unresolved."]},{"phase":"F5","feature":"heavy_rain","label":"Road-weighted heavy-rain days","decision":"banded","valid":35365,"banded":35365,"coveragePct":99.13938102713612,"coverageGate":true,"measurementGate":true,"missingSensitivity":{"missing":307,"observed":35365,"atMostOneBand":35365,"atMostOneBandPct":100.0,"maxBandShift":1,"passed":true,"method":"All unknown ranks below or above observed ranks; fixed zero-band policy; zero observations retain Z0."},"zeroPolicyUncertain":false,"failedGroups":[],"blockers":[]},{"phase":"F5","feature":"rain_intensity","label":"Road-weighted wet-day rainfall intensity","decision":"deferred","valid":0,"banded":0,"coveragePct":0.0,"coverageGate":false,"measurementGate":false,"missingSensitivity":{"missing":35672,"observed":0,"atMostOneBand":0,"atMostOneBandPct":0,"maxBandShift":null,"passed":false,"method":"All unknown ranks below or above observed ranks; 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registered-user authentication required.","New 1km road/grid intersections required before optional NetCDF grid outputs can enter LSOA lookup.","National or subgroup numeric-coverage gate failed.","Missing-value rank sensitivity failed or no numeric values.","Source measurement/comparability gate unresolved."]},{"phase":"F5","feature":"snow_lying","label":"Road-weighted snow-lying days","decision":"deferred","valid":0,"banded":0,"coveragePct":0.0,"coverageGate":false,"measurementGate":false,"missingSensitivity":{"missing":35672,"observed":0,"atMostOneBand":0,"atMostOneBandPct":0,"maxBandShift":null,"passed":false,"method":"All unknown ranks below or above observed ranks; fixed zero-band policy; zero observations retain Z0."},"zeroPolicyUncertain":false,"failedGroups":[{"geographyType":"combined","geography":"England and Wales","total":35672,"valid":0,"missing":35672,"validPct":0.0},{"geographyType":"country","geography":"England","total":33755,"valid":0,"missing":33755,"validPct":0.0},{"geographyType":"country","geography":"Wales","total":1917,"valid":0,"missing":1917,"validPct":0.0},{"geographyType":"region","geography":"East Midlands","total":2847,"valid":0,"missing":2847,"validPct":0.0},{"geographyType":"region","geography":"East of England","total":3758,"valid":0,"missing":3758,"validPct":0.0},{"geographyType":"region","geography":"London","total":4994,"valid":0,"missing":4994,"validPct":0.0},{"geographyType":"region","geography":"North East","total":1682,"valid":0,"missing":1682,"validPct":0.0},{"geographyType":"region","geography":"North West","total":4567,"valid":0,"missing":4567,"validPct":0.0},{"geographyType":"region","geography":"South East","total":5571,"valid":0,"missing":5571,"validPct":0.0},{"geographyType":"region","geography":"South West","total":3407,"valid":0,"missing":3407,"validPct":0.0},{"geographyType":"region","geography":"Wales","total":1917,"valid":0,"missing":1917,"validPct":0.0},{"geographyType":"region","geography":"West Midlands","total":3574,"valid":0,"missing":3574,"validPct":0.0},{"geographyType":"region","geography":"Yorkshire and The Humber","total":3355,"valid":0,"missing":3355,"validPct":0.0},{"geographyType":"urbanRural","geography":"Rural","total":6115,"valid":0,"missing":6115,"validPct":0.0},{"geographyType":"urbanRural","geography":"Urban","total":29557,"valid":0,"missing":29557,"validPct":0.0}],"blockers":["Exact authorised CEDA inputs not acquired; registered-user authentication required.","New 1km road/grid intersections required before optional NetCDF grid outputs can enter LSOA lookup.","National or subgroup numeric-coverage gate failed.","Missing-value rank sensitivity failed or no numeric values.","Source measurement/comparability gate unresolved."]}],"interpretation":"Current source snapshots are retrospective context. No historical forecast or claims validation is established."}