{ "model": { "rank": 3018, "code": "thing-q47053", "model_id": "vr.tr.estuary", "name": "estuary", "purpose": "Let an agent explain estuaries, relay classification, ecology, human uses and threats from coastal science and conservation sources, describe mangrove estuaries, route tidal hazards, and distinguish estuaries from deltas, lagoons, bays, river mouths as points and fjords as a subtype.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.TME", "industry": "", "version": "", "url": "/models/thing/q47053/", "tier": 2, "score": 92, "payload": { "layer": "wikidata", "aliases": [ "mangrove estuary" ], "aliasCount": 1, "merged": 1, "knownIn": 92, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.estuary", "source": { "dataset": "wikidata", "item": "Q47053", "url": "https://www.wikidata.org/wiki/Q47053", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-14T01:27:58Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 4, "engine": "claude" }, "metaModel": { "id": "THING-Q47053", "registryId": "vr.tr.estuary", "name": "estuary", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.TME" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q47053/", "model": { "registry_id": "vr.tr.estuary", "name": "estuary", "purpose": "Let an agent explain estuaries, relay classification, ecology, human uses and threats from coastal science and conservation sources, describe mangrove estuaries, route tidal hazards, and distinguish estuaries from deltas, lagoons, bays, river mouths as points and fjords as a subtype.", "definition": "A partially enclosed coastal body of water where fresh water from rivers mixes with seawater, influenced by tides, waves and river flow, classified by mixing as salt-wedge, partially mixed or well-mixed and by geomorphology as drowned river valleys, bar-built, fjords and tectonic estuaries, and including mangrove estuaries, named in a registry alias, in tropical regions; estuaries are highly productive nursery habitats for fish and birds and support ports and cities, but face pollution, dredging, habitat loss and sea level rise. Tidal currents and mudflats can be dangerous to visitors.", "what_it_is_for": "Coastal habitat where rivers meet the sea.", "affordances": [ "explain classification", "relay ecology", "relay human uses and threats", "route tidal hazards" ], "distinguishing_features": [ "Brackish water", "Tidal influence", "High productivity", "Human pressure" ], "appearance": "Broad tidal waters with mudflats, salt marshes or mangroves where a river reaches the sea.", "visual_identification": [ "Mixing zone of river water and seawater", "Mangrove estuary", "Deltas build land from sediment; lagoons are separated by barriers; bays are coastal indentations; river mouths are points; fjords are glacial estuaries" ], "physical_properties": [ { "quantity": "Pritchard definition", "typical_range": "1967", "unit": "year", "note": "widely cited" }, { "quantity": "salinity range", "typical_range": "from near 0 to about 35", "unit": "psu", "note": "along the estuary" }, { "quantity": "registry parents", "typical_range": "river mouth, body of water, ecoregion", "unit": "note", "note": "" } ], "families_and_kinds": [ "drowned river valley estuaries", "bar-built estuaries", "fjords", "tectonic estuaries", "mangrove estuaries" ], "related_models": [ { "relation": "is a kind of", "target": "body of water", "why": "in registry terms" }, { "relation": "includes", "target": "salt marsh", "why": "habitat" }, { "relation": "is contrasted with", "target": "river delta", "why": "" }, { "relation": "is contrasted with", "target": "lagoon", "why": "" } ], "identifiers": [], "standards_and_regulation": [ "Ramsar Convention", "EU Water Framework Directive transitional waters", "US National Estuary Program" ], "failure_modes_and_hazards": [ "Being cut off by tides on mudflats", "Pollution and eutrophication", "Habitat loss from development" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What an estuary is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "Is someone stuck in mud or cut off by a rising tide, in which case call emergency services or the coastguard and do not try to wade out?", "kind": "boundary" }, { "text": "What is an estuary, and how does it differ from deltas, lagoons, bays, river mouths and fjords?", "kind": "definition" } ] } ] }, { "id": "mangrove", "name": "Mangrove estuaries", "description": "Mangrove estuaries.", "findings": [ { "id": "mangrove-finding", "name": "Mangrove estuaries", "description": "Mangrove estuaries.", "questions": [ { "text": "What are mangrove estuaries?", "kind": "definition" }, { "text": "Which entry fits the specific estuary?", "kind": "action" } ] } ] } ] }, { "id": "science", "name": "Science", "description": "Classification.", "rationale": "Science.", "layers": [ { "id": "mixing", "name": "Mixing", "description": "Mixing types.", "findings": [ { "id": "mixing-finding", "name": "Mixing", "description": "Mixing.", "questions": [ { "text": "How do salt-wedge, partially mixed and well-mixed estuaries differ?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "geomorphology", "name": "Geomorphology", "description": "Geomorphic types.", "findings": [ { "id": "geomorphology-finding", "name": "Geomorphology", "description": "Geomorphology.", "questions": [ { "text": "How do drowned valleys, bar-built estuaries and fjords form?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "ecology", "name": "Ecology", "description": "Ecology.", "rationale": "Science.", "layers": [ { "id": "nursery", "name": "Nursery", "description": "Nursery habitat.", "findings": [ { "id": "nursery-finding", "name": "Nursery", "description": "Nursery.", "questions": [ { "text": "Why are estuaries important nurseries for fish?", "kind": "provenance" }, { "text": "Which entry fits salt marsh?", "kind": "action" } ] } ] }, { "id": "birds", "name": "Birds", "description": "Waterbirds.", "findings": [ { "id": "birds-finding", "name": "Birds", "description": "Birds.", "questions": [ { "text": "Why do migratory waders depend on estuarine mudflats?", "kind": "provenance" }, { "text": "Is the information accurate?", "kind": "boundary" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Threats.", "rationale": "Attribution.", "layers": [ { "id": "pollution", "name": "Pollution", "description": "Pollution and development.", "findings": [ { "id": "pollution-finding", "name": "Pollution", "description": "Pollution.", "questions": [ { "text": "What do agencies report about estuary water quality, with findings attributed?", "kind": "provenance" }, { "text": "Is the information current?", "kind": "boundary" } ] } ] }, { "id": "sealevel", "name": "Sea level", "description": "Sea level rise.", "findings": [ { "id": "sealevel-finding", "name": "Sea level", "description": "Sea level.", "questions": [ { "text": "What do studies project about sea level rise and estuaries, and what adaptation debates exist, with positions attributed?", "kind": "provenance" }, { "text": "Is the presentation neutral and attributed?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should mangrove estuaries be a separate entry?", "How should estuary monitoring data be linked?", "Is the registry time domain classification appropriate?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "abstract concept", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a estuary, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain estuaries, relay classification, ecology, human uses and threats from coastal science and conservation sources, describe mangrove estuaries, route tidal hazards, and distinguish estuaries from deltas, lagoons, bays, river mouths as points and fjords as a subtype.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: mangrove estuary.", "1 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 92 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a estuary, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "mangrove estuary" ] } ], "standing": "Described in 92 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 1 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one estuary from another, and a estuary from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a estuary sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a estuary from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a estuary passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a estuary between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a estuary, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a estuary is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "definitions-in-contest", "name": "Definitions and who holds them", "description": "What estuary is taken to mean, and by whom.", "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.", "layers": [ { "id": "competing-definitions", "name": "Competing definitions", "description": "The main readings and the traditions behind them.", "findings": [ { "id": "definition-map", "name": "Definitions and their holders", "description": "Each definition with the school or body that holds it.", "questions": [ { "id": "definition-map-q01", "text": "Which definitions of estuary are in use, and which tradition or body holds each?", "kind": "definition" }, { "id": "definition-map-q02", "text": "What turns on the difference between them in practice?", "kind": "boundary" } ] } ] }, { "id": "operationalisation", "name": "Operationalisation", "description": "How it is measured or applied when it has to be.", "findings": [ { "id": "operational-record", "name": "Measures and proxies", "description": "Instruments and indicators used to stand in for it.", "questions": [ { "id": "operational-record-q01", "text": "How is estuary operationalised or measured in practice, and by what instrument?", "kind": "measurement" }, { "id": "operational-record-q02", "text": "What does that operationalisation leave out, and when does that matter?", "kind": "boundary" } ] } ] } ] }, { "id": "instances-and-use", "name": "Instances, use and consequence", "description": "What counts as an instance of estuary and what follows from calling something that.", "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.", "layers": [ { "id": "instances", "name": "What counts as an instance", "description": "Clear cases, borderline cases and non-cases.", "findings": [ { "id": "instance-tests", "name": "Tests for an instance", "description": "What would settle whether something falls under it.", "questions": [ { "id": "instance-tests-q01", "text": "What would settle whether something is an instance of estuary?", "kind": "boundary" }, { "id": "instance-tests-q02", "text": "Which borderline cases are argued about, and on what grounds?", "kind": "definition" } ] } ] }, { "id": "consequence", "name": "Consequence of application", "description": "Rights, duties or decisions that follow from the label.", "findings": [ { "id": "consequence-record", "name": "What the label licenses", "description": "What an agent may do once something is classified this way.", "questions": [ { "id": "consequence-record-q01", "text": "What follows practically once something is treated as estuary?", "kind": "action" }, { "id": "consequence-record-q02", "text": "What must an agent not infer from the label alone?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a estuary came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a estuary and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a estuary is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a estuary, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a estuary, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a estuary is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }