{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.channel","code":"thing-q1210950","url":"https://ver.cy/models/thing/q1210950/","name":"channel","alternateNames":[],"kind":"thing","status":"research-draft","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"","entryKind":"","plane":"","domain":["PHY.PLC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A landform or water feature that forms a confined course for water, either natural or artificial, such as river and tidal channels, shipping channels dredged and marked for navigation, sloughs, which are backwater or side channels in wetlands and floodplains, rills, small channels cut by runoff on slopes, abyssal channels on the deep ocean floor, lake channels, and lades, a Scottish term for a channel carrying water to a mill; channels shift with erosion and deposition, and fast-flowing or tidal channels can be dangerous to swimmers and small boats.","purpose":"Let an agent explain channels, relay geomorphology, hydraulics and navigation uses from geoscience and maritime sources, describe the named channel types, warn about water hazards, and distinguish channels from straits, canals, rivers as whole systems and the non-water senses of channel.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Confined flow","Natural or artificial","Dynamic form","Navigation role"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What a channel is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is a channel, and how does it differ from straits, canals, rivers and other senses of channel?","kind":"definition"},{"text":"Is someone in difficulty in the water, in which case call emergency services and do not enter the water?","kind":"boundary"}]}]},{"id":"types","name":"Types","description":"Named types.","findings":[{"id":"types-finding","name":"Types","description":"Types.","questions":[{"text":"What are shipping channels, sloughs, rills, abyssal channels, lake channels and lades?","kind":"definition"},{"text":"Which entry fits the specific type?","kind":"action"}]}]}]},{"id":"geomorphology","name":"Geomorphology","description":"Geomorphology.","layers":[{"id":"forms","name":"Forms","description":"Channel forms.","findings":[{"id":"forms-finding","name":"Forms","description":"Forms.","questions":[{"text":"Why do channels meander or braid?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"ocean","name":"Ocean","description":"Submarine channels.","findings":[{"id":"ocean-finding","name":"Ocean","description":"Ocean.","questions":[{"text":"How do turbidity currents carve abyssal channels?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"navigation","name":"Navigation","description":"Navigation.","layers":[{"id":"marking","name":"Marking","description":"Buoyage.","findings":[{"id":"marking-finding","name":"Marking","description":"Marking.","questions":[{"text":"How are shipping channels marked and maintained?","kind":"provenance"},{"text":"Which entry fits IALA buoyage system?","kind":"action"}]}]},{"id":"dredging","name":"Dredging","description":"Dredging.","findings":[{"id":"dredging-finding","name":"Dredging","description":"Dredging.","questions":[{"text":"What environmental effects does channel dredging have?","kind":"provenance"},{"text":"Which entry fits dredging?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Human uses.","layers":[{"id":"mills","name":"Mills","description":"Mill lades.","findings":[{"id":"mills-finding","name":"Mills","description":"Mills.","questions":[{"text":"How did lades and millraces power mills?","kind":"provenance"},{"text":"Which entry fits millrace?","kind":"action"}]}]},{"id":"wetlands","name":"Wetlands","description":"Sloughs and wetlands.","findings":[{"id":"wetlands-finding","name":"Wetlands","description":"Wetlands.","questions":[{"text":"What ecological role do sloughs play?","kind":"provenance"},{"text":"Which entry fits wetland?","kind":"action"}]}]}]}]},"agentConduct":{"may":["explain formation and hydraulics","relay navigation uses","describe named channel types","relay water safety"],"mustNot":[],"requiresHuman":[]},"ethics":{"considerations":[],"affectedParties":[]},"owners":{"steward":"","roles":[],"masterSystems":[]},"relations":[{"target":"watercourse","type":"related","note":"in registry terms"},{"target":"fluvial geomorphology","type":"related"},{"target":"strait","type":"related"},{"target":"canal","type":"related"}],"interaction":{"identity":{"applicability":"required","items":[]},"properties":{"applicability":"required","items":["channel forms: straight, meandering, braided, anastomosing list","Manning equation: common flow formula note","registry parents: water area, landform, watercourse note"]},"recognition":{"applicability":"required","items":["Confined course of water","Shipping channel, slough, rill, abyssal channel, lake channel, lade","Straits connect seas; canals are built waterways; rivers include whole systems; TV or communication channels are other senses","A linear depression or course carrying or shaped by water, sometimes marked by buoys."]},"capabilities":{"applicability":"required","items":["explain formation and hydraulics","relay navigation uses","describe named channel types","relay water safety"]},"hazards":{"applicability":"required","items":["Strong currents and cold water","Shifting channels stranding boats","Confusing channel senses"]},"interfaces":{"applicability":"required","items":["Navigation marking systems such as IALA buoyage","Dredging and environmental permits"]},"context":{"applicability":"required","items":["Conveying water and navigation.","river channels","tidal channels","shipping channels","side channels and sloughs","rills and gullies","submarine and abyssal channels","mill lades"]}},"sources":[],"openQuestions":["Should slough and rill be separate entries?","How should geomorphology sources be linked?","Should the Scottish lade be moved to millrace?","Which entry fits the specific type?","Which entry fits IALA buoyage system?","Which entry fits dredging?"],"resources":{"spec":"/models/things/publications/thing-q1210950/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1210950/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T20:39:27Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"derived","ethics":"missing","owners":"missing","relations":"filled","interaction.identity":"missing","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"missing"},"notes":{"agentConduct":"Affordances listed as what may be done; prohibitions collected from the text.","sources":"Written from model knowledge without web access; claims are unverified."},"score":0.735}}