{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.cyclone","code":"thing-q79602","url":"https://ver.cy/models/thing/q79602/","name":"cyclone","alternateNames":["Pineapple Express","extratropical cyclone","polar vortex","subtropical cyclone","North Atlantic subtropical cyclone","extraterrestrial vortex","cold-core low","post-tropical cyclone","Labrador Low","European windstorm","Australian east coast low","Pacific Northwest windstorm"],"kind":"thing","status":"published","version":"0.2.0-wave.3","language":"en","classifiers":{"family":"Thing Registry","category":"Activities and processes","entryKind":"thing","plane":"ACT","domain":["ACT.ACT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A large-scale rotating air mass around a centre of low atmospheric pressure, spinning counterclockwise in the northern hemisphere and clockwise in the southern, including tropical cyclones known as hurricanes and typhoons, extratropical cyclones of the mid-latitudes that bring most temperate weather, subtropical cyclones, polar lows and the polar vortex, and related phenomena such as the Pineapple Express atmospheric river; cyclones drive storms, rain and wind and are tracked and forecast by meteorological services, and vortices are also observed on other planets.","purpose":"Let an agent explain cyclones and their kinds, relay formation, forecasting and hazards from meteorological sources, distinguish tropical from extratropical cyclones and from tornadoes, and route warnings to official services.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Low pressure rotation","Coriolis-determined spin","Tropical and extratropical types","Major weather driver"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a cyclone is.","layers":[{"id":"definition","name":"Definition","description":"Definition and kinds.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a cyclone, and how do tropical, extratropical and subtropical cyclones differ?","kind":"definition"},{"text":"Is the system a cyclone, a tornado or an anticyclone?","kind":"boundary"}]}]},{"id":"formation","name":"Formation","description":"Formation and structure.","findings":[{"id":"formation-finding","name":"Formation","description":"Formation.","questions":[{"text":"How do cyclones form and evolve, including fronts, eyes and rainbands?","kind":"definition"},{"text":"Which entry fits the specific type?","kind":"action"}]}]}]},{"id":"forecast","name":"Forecast","description":"Forecasting and warnings.","layers":[{"id":"forecasting","name":"Forecasting","description":"Forecasting.","findings":[{"id":"forecasting-finding","name":"Forecasting","description":"Forecasting.","questions":[{"text":"How are cyclones tracked and forecast, and how accurate are forecasts, as services report?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"warnings","name":"Warnings","description":"Warnings and safety.","findings":[{"id":"warnings-finding","name":"Warnings","description":"Warnings.","questions":[{"text":"Where are official warnings issued, and what safety advice applies?","kind":"action"},{"text":"Is the user in an area under warning, who should follow official instructions?","kind":"boundary"}]}]}]},{"id":"impact","name":"Impact","description":"Hazards and climate.","layers":[{"id":"hazards","name":"Hazards","description":"Hazards.","findings":[{"id":"hazards-finding","name":"Hazards","description":"Hazards.","questions":[{"text":"What hazards do cyclones bring, and which events were most damaging, with sources?","kind":"provenance"},{"text":"Which entry fits the specific storm?","kind":"action"}]}]},{"id":"climate","name":"Climate","description":"Climate change.","findings":[{"id":"climate-finding","name":"Climate","description":"Climate.","questions":[{"text":"How is climate change affecting cyclones, as the IPCC and studies find?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"context","name":"Context","description":"Related phenomena and history.","layers":[{"id":"related","name":"Related","description":"Polar vortex, atmospheric rivers and other planets.","findings":[{"id":"related-finding","name":"Related","description":"Related.","questions":[{"text":"What are the polar vortex, atmospheric rivers such as the Pineapple Express and extraterrestrial vortices?","kind":"provenance"},{"text":"Which entry fits the specific phenomenon?","kind":"action"}]}]},{"id":"history","name":"History","description":"History of understanding.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How did meteorologists come to understand cyclones, from Redfield to the Norwegian school?","kind":"provenance"},{"text":"Which entry fits the history of meteorology?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Report forecasts, tracks and warnings issued by official meteorological services.","Help people find shelters, evacuation routes and preparation advice from authorities."],"mustNot":["Issue its own cyclone warnings or all-clear signals that contradict official services.","Spread unverified forecasts or rumours that cause panic or complacency.","Advise people to stay in an evacuation zone against official orders.","Misrepresent the link between climate change and cyclones beyond what evidence supports."],"requiresHuman":["Ordering or lifting evacuations.","Directing emergency resources."]},"ethics":{"considerations":["Cyclones kill most where warnings fail to reach poor and remote communities.","Recovery aid must reach all affected people fairly."],"affectedParties":["Coastal residents","Emergency responders","Fishers and sailors"]},"owners":{"steward":"Nobody owns the weather; national meteorological services issue the authoritative warnings.","roles":[],"masterSystems":["Official meteorological warning systems","Tropical cyclone best track archives"]},"relations":[{"target":"Q1277161","type":"parent","note":"registry parent class"},{"target":"Q209190","type":"parent","note":"registry parent class"},{"target":"Q732722","type":"parent","note":"registry parent class"},{"target":"Q81054","type":"parent","note":"registry parent class"},{"target":"low pressure area","type":"related","note":"in registry terms"},{"target":"vortex","type":"related","note":"in registry terms"},{"target":"extreme weather event","type":"related","note":"in registry terms, when severe"},{"target":"anticyclone","type":"related","note":"the high pressure counterpart"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.cyclone","Wikidata: Q79602 (https://www.wikidata.org/wiki/Q79602)"]},"properties":{"applicability":"not-applicable","items":["extratropical cyclone diameter: about 1000-4000 km","tropical cyclone wind threshold: 119 km/h - hurricane strength"]},"recognition":{"applicability":"optional","items":["Rotating low pressure system","Tropical, extratropical, subtropical, polar lows, polar vortex","A tornado is a small violent vortex; an anticyclone is a high pressure system","A spiral of cloud around a low pressure centre on satellite imagery."]},"capabilities":{"applicability":"required","items":["explain kinds and formation","relay forecasting and warnings","describe hazards","distinguish from tornadoes and anticyclones"]},"hazards":{"applicability":"required","items":["Wind, storm surge and flooding","Confusing cyclone types and terms","Stale forecasts","Presenting climate attribution as settled without sources"]},"interfaces":{"applicability":"required","items":["WMO tropical cyclone classification and naming","National warning systems and scales such as Saffir-Simpson","Building codes for cyclone-prone regions"]},"context":{"applicability":"required","items":["Not applicable; a weather system.","tropical cyclones: hurricanes, typhoons, cyclones","extratropical cyclones and frontal systems","subtropical cyclones such as in the North Atlantic","polar lows and the polar vortex","mesocyclones within thunderstorms","atmospheric rivers such as the Pineapple Express as associated phenomena","extraterrestrial vortices such as Jupiter Great Red Spot"]}},"sources":[{"title":"Wikidata item Q79602: cyclone","url":"https://www.wikidata.org/wiki/Q79602","note":"identity and sense of the item"},{"title":"Wikipedia: Cyclone","url":"https://en.wikipedia.org/wiki/Cyclone","note":"general description of the item"}],"openQuestions":["Should tropical cyclone and extratropical cyclone be separate primary entries?","How should meteorological services be linked?","The registry entry has merged aliases naming distinct phenomena; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q79602/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q79602/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T01:30:35Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:52:02+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane ACT: no invented physical properties."},"score":1.0}}