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RhoHV unavailable in the Puyang files. Timeline length is not tornado duration.", "method": "Authentic CINRAD standard-format radar volumes from the linked research deposit, rendered as lowest available approximately 0.5\u00b0 PPI sweeps. Separate reflectivity and Doppler cuts retain native ray times and moment-specific range spacing. Header scale and offset applied; reserved and range-folded codes masked. No spatial or temporal resampling, velocity dealiasing, or model simulation. Town labels are geographic references, not tornado locations or tracks. Renderings are adaptations under CC BY 4.0. Puyang and Jining radar observations; Zhang, Jiang & Chen / Zenodo.", "built_utc": "2026-10-15T15:16:06.563438+00:00", "tornado_track": null }