Published

Water Body

vr.wm-plc-003 · wm-plc-003-water-body

Describe one identified body or reach of water and its time-qualified geometry, hydrological relationships, regime and quality evidence.

World Models Physical world and living systems PHY.PLC.WAT

Bundle → Layer → Finding → Questions Classifiers What it is Why it exists Distinguishing features What robots and AI may and may not do Moral aspects Owners Links to other meta-models Identity and identifiers Direct properties Recognition Capabilities and actions Hazards and failure modes Standards and interfaces Context of use Sources

Bundle → Layer → Finding → Questions Filled

6 bundles · 14 layers · 14 findings · 42 questions

Identity and continuity Persistent body identity and its classification through revision.

Body identity and reference frame context

One identified body or reach of surface water, or delineated groundwater volume. Names, map representations and regulatory reporting units are separately qualified; a dry interval need not terminate identity.

Body identity and reference frame

Which authoritative identifier, namespace and aliases identify this water body? identity
Which feature class and delineation purpose apply, including natural or artificial origin? classification
Does this record describe water, a channel or aquifer host, or a regulatory reporting unit? definition

Delineation and identity continuity context

Geometry correction, physical change, reclassification, split, merge and retirement have different meanings. Record explicit lineage without assuming that all course changes preserve identity.

Delineation and identity continuity

Geometry correction, physical change, reclassification, split, merge and retirement have different meanings. Record explicit lineage without assuming that all course changes preserve identity.

Is this change a representation correction, physical change, split, merge or retirement? lifecycle
When was the change effective, observed and entered into the register? temporal
Who approved the continuity decision and which contested interpretations remain? authority

Extent and hydrological relationships Spatial realizations, network context and subsurface boundaries.

Geometry and physical properties context

Geometry, area, depth, volume, section and stratum are time- and method-dependent assertions. Preserve horizontal and vertical reference systems, scale and uncertainty. Sea and wetland profiles need an explicit segmentation purpose.

Geometry and physical properties

Which geometry, coordinate reference system, vertical datum and scale describe this representation? spatial
Which area, depth, volume or stratum properties were observed and under what conditions? measurement
What survey, imagery or other evidence supports the extent and its limits of recognition? evidence

Catchment and network context context

Keep catchment, outlet, channel and connected-body references separate. Proposed local links allow multiple or unknown neighbors; distinguish nominal topology from time-dependent flow, including tidal or managed reversals.

Catchment and network context

Which catchments, outlets, channels and neighboring bodies are linked at the declared scale? relationship
Is the recorded direction nominal, observed, reversible, interrupted or unknown? state
Which lineage and boundary rules prevent double counting across nested or overlapping realizations? constraint

Groundwater body and host context

Describe the groundwater volume and reference its hydrogeological hosts. Host confinement and storage parameters must carry their host and method; neither aquifer rock nor management-area boundary is the body itself.

Groundwater body and host

Which hydrogeological units and void or host representations contain this groundwater body? composition
Which water-table or potentiometric surfaces delimit the body and for which times? spatial
Which recharge or exchange estimates characterize this body without transferring host properties to the water? measurement

Observation and recognition Body-specific bindings for observations, conversions and coastal records.

Observation binding and quality context

Link observations to the body and the actual sampling feature, monitoring location or remote footprint. Generic observation and station lifecycles remain external. Preserve provisional, validated, missing, modeled and measured distinctions.

Observation binding and quality

What phenomenon, result, unit, procedure and spatial support does the observation represent? measurement
Which quality flags, uncertainty, missing-value reasons and validation state accompany the result? quality
What are the phenomenon interval, result time, ingestion time and feed freshness? temporal

Stage and discharge conversion context

A stage value is not discharge. Link locally used rating versions, gaugings and sections with applicability intervals and declared limitations; conversion algorithms and station calibration execution remain external.

Stage and discharge conversion

Which rating version, gaugings and section evidence support the reported discharge? provenance
Does the observation fall within the rating time interval, valid range and stated conditions? constraint
How are backwater, altered controls, ice or unavailable ratings represented without inventing discharge? exception

Coastal level and profile context context

Represent tidal and coastal level or current observations with local datum, time basis and depth support. Measured values, harmonic predictions and model guidance remain distinct.

Coastal level and profile context

Represent tidal and coastal level or current observations with local datum, time basis and depth support. Measured values, harmonic predictions and model guidance remain distinct.

Which local datum, station, depth or bin and units qualify the coastal value? measurement
Is the product an observation, prediction or model guidance, and what processing state applies? classification
Which time-zone and datum transformations were applied and what prevents unsupported comparisons? interoperability

Regime and estimated balance Period-bounded water accounting and qualified regime summaries.

Control-volume water balance context

Keep the selected body or linked catchment control volume explicit. Record inputs, outputs, storage change and unresolved terms over compatible periods; a residual is an estimate, not automatically measured recharge.

Control-volume water balance

Which control volume, accounting period and sign convention define this balance? definition
Which inflow, outflow, storage and exchange terms are measured, estimated or missing? measurement
What residual and uncertainty remain after compatible units and periods are reconciled? validation

Regime summaries and extreme estimates context

Summaries carry reference period, sample coverage, method and uncertainty. A flood return-period estimate expresses probability under assumptions, not the date of the next event. Detailed low-flow and nonstationary methods need further profiling.

Regime summaries and extreme estimates

Which reference period, sampling gaps and aggregation method support the seasonal or flow summary? temporal
What exceedance probability, fitted method, record length and uncertainty qualify the extreme estimate? quality
Which threshold comparison or hazard record is linked and who owns any official warning? event

Water quality and assessment Sample context and qualified body-level assessments.

Sample and analytical evidence context

Body-specific result links preserve activity, sample medium, depth, analyte, fraction, method, unit and detection or quantitation information. A nondetect is not numerical zero and a point sample is not automatically body-wide.

Sample and analytical evidence

Which sampling activity, location, medium, depth and analysis method produced this result? provenance
Which characteristic, fraction, value or censoring qualifier, unit and detection limits were reported? measurement
What quality controls and representativeness limits constrain use of this result for the body? quality

Profile-specific status assessment context

Record an attributed assessment with authority, jurisdiction, body category and cycle. EU ecological status or potential, chemical status and groundwater quantitative status are distinct profile concepts, not a universal good-water flag.

Profile-specific status assessment

Which assessment scheme, body category, metric and version define the reported status or potential? classification
Which observations, biological indicators, reference conditions and coverage gaps support the assessment? evidence
Who issued the assessment and what effective cycle, review or appeal qualification applies? authority

Stewardship and exchange Evidence accountability and controlled local representation.

Stewardship, rights and access context context

Record roles for maintaining the data separately from ownership or use rights over water. Disclosure and retention are proposed local policy requirements; neither a source standard nor a registry link grants authority.

Stewardship, rights and access context

Which role maintains the data and which separately evidenced rights or jurisdiction claims concern the water? ownership
Which artifact or location details require restricted or generalized views under the adopting policy? access
Which retention periods, holds and disposition authority govern local records and restricted payloads? retention

Evidence lineage and exchange context

Trace local assertions to source entities, derivations and responsible roles. Standard mappings are candidate crosswalks until tested; stable references and explicit information loss take priority over matching labels.

Evidence lineage and exchange

Which source revision, activity and responsible role support each derived assertion? provenance
Which pinned exchange profile and code mappings preserve body identity, units and unknown values? interoperability
Which round-trip losses, unresolved references and conformance tests remain before exchange? validation

Classifiers Filled

Family: World Models
Category: Physical world and living systems
Entry kind: entity
Navigation path: NAV.PHY.PLC.WAT
Domain: PHY.PLC.WAT
Industry: Cross-industry
Tags: waterbodyphy.plc.wat
Also called: P3

What it is Filled

The root is a persistent water-body entity, including a surface feature or delineated groundwater volume. Different mapping or management realizations are explicitly linked, not assumed identical. The structure is a proposed reviewable research draft; it does not operate water infrastructure, classify official status or issue warnings.

In scope

Identity, physical extent, properties, continuity and hydrological links
Body-specific observation bindings, groundwater context, levels, regime estimates and water balance
Sample and assessment references, evidence lineage, stewardship and exchange requirements

Out of scope

Aquifer rock, catchment terrain, stations, sensors, samples and generic observation masters
Water ownership or use-right adjudication, supply and treatment, permits and operating dams or pumps
Official hazard warnings, executable hydrodynamic forecasts and automatic regulatory classifications

Why it exists Filled

Describe one identified body or reach of water and its time-qualified geometry, hydrological relationships, regime and quality evidence.

Distinguishing features Derived, awaiting review

Unlike WM-PLC-001 Terrain / Landform: Catchment and elevation surfaces remain external representations; record their lineage and body-specific links.
Unlike WM-EAR-004 Geology / Mineral Resource: Aquifer host material and geological-unit properties remain external; this root describes water and its qualified host links.
Unlike WM-MAT-008 Observation / Measurement Record: Generic observation identity, procedure and result lifecycle are referenced; this model adds water-body support and interpretation.
Unlike WM-DAT-010 Time Series / Observation Collection: Time-series storage, generic aggregation lifecycle and delivery mechanics remain external.
Unlike WM-FLW-002 Water Supply: Abstraction rights, treatment, distribution and supply operations are external; record only body context and reported balance terms.
Unlike WM-EAR-005 Natural Hazard: Hazard occurrence and official warning authority remain external; this model links threshold and regime evidence.
Unlike WM-BLT-003 Infrastructure Network: Dams, canals and control structures are external assets; a canal water body is distinct from its engineered channel.
Unlike WM-LIV-006 Ecosystem / Biome: Biotic communities and ecosystem lifecycle remain external; only assessment references concerning this body are admitted.
Unlike WM-EAR-001 Weather: Weather observations and prediction systems remain external inputs to period balances.
Unlike WM-EAR-003 Soil: Soil and infiltration properties remain external input evidence, not local soil records.
Unlike WM-FLW-006 Emission: Discharge and environmental flux records are referenced as evidence; no emission permitting or control operations.

Note: Derived from boundary notes against neighbouring models.

What robots and AI may and may not do Derived, awaiting review

Must not

Deny writes and sensitive payload disclosure until role, purpose and policy are resolved; allow public views only when explicitly designated.

May

Register body assertion: Proposed, unimplemented local operation. Record a proposed body identity and classification without conferring water rights.
Propose delineation revision: Proposed, unimplemented local operation. Preserve explicit lineage for geometry change, split or merge.
Bind observation evidence: Proposed, unimplemented local operation. Link a result to its water-body support and preserve source quality.
Record balance assessment: Proposed, unimplemented local operation. Store a reviewed control-volume calculation with its unresolved residual.
Attach attributed status: Proposed, unimplemented local operation. Associate a profile-qualified external assessment without making an official determination.
Prepare scoped exchange view: Proposed, unimplemented local operation. Prepare a local projection with declared mapping losses and source status.

Note: Derived from functions, policies, CRUD and access rules; prohibitions were not authored for agents as such.

Moral aspects Missing, in the backlog

Not described yet. This gap is in the card backlog.

Owners Filled

Steward

Declare a role-based data steward and namespace authority, separately from water ownership or use rights.

Roles

Data steward: Maintain identities and body-specific links under delegated authority.
Hydrological reviewer: Review geometry, datum, measurements and estimate assumptions.
Assessment reviewer: Verify scheme, cycle and issuer of status assertions.
Access custodian: Apply recipient scope and retention policy without changing scientific results.
Evidence contributor: Supply attributed source records and quality flags; cannot certify their own official authority.

Links to other meta-models Filled

references

WM-PLC-001 Terrain / Landform - Catchment and elevation surfaces remain external representations; record their lineage and body-specific links. Candidate binding requires a pinned target version before implementation.
WM-EAR-004 Geology / Mineral Resource - Aquifer host material and geological-unit properties remain external; this root describes water and its qualified host links. Candidate binding requires a pinned target version before implementation.
WM-MAT-008 Observation / Measurement Record - Generic observation identity, procedure and result lifecycle are referenced; this model adds water-body support and interpretation. Candidate binding requires a pinned target version before implementation.
WM-DAT-010 Time Series / Observation Collection - Time-series storage, generic aggregation lifecycle and delivery mechanics remain external. Candidate binding requires a pinned target version before implementation.
WM-FLW-002 Water Supply - Abstraction rights, treatment, distribution and supply operations are external; record only body context and reported balance terms. Candidate binding requires a pinned target version before implementation.
WM-EAR-005 Natural Hazard - Hazard occurrence and official warning authority remain external; this model links threshold and regime evidence. Candidate binding requires a pinned target version before implementation.
WM-BLT-003 Infrastructure Network - Dams, canals and control structures are external assets; a canal water body is distinct from its engineered channel. Candidate binding requires a pinned target version before implementation.
WM-LIV-006 Ecosystem / Biome - Biotic communities and ecosystem lifecycle remain external; only assessment references concerning this body are admitted. Candidate binding requires a pinned target version before implementation.
WM-EAR-001 Weather - Weather observations and prediction systems remain external inputs to period balances. Candidate binding requires a pinned target version before implementation.
WM-EAR-003 Soil - Soil and infiltration properties remain external input evidence, not local soil records. Candidate binding requires a pinned target version before implementation.
WM-FLW-006 Emission - Discharge and environmental flux records are referenced as evidence; no emission permitting or control operations. Candidate binding requires a pinned target version before implementation.

aligned

OGC HY_Features 1.0 - Conceptual mapping candidate only; selected source concepts do not establish implementation conformance.
OGC GroundWaterML 2.2 - Conceptual mapping candidate only; selected source concepts do not establish implementation conformance.
OGC WaterML Part 1 2.0.1 and Part 2 1.0 - Conceptual mapping candidate only; selected source concepts do not establish implementation conformance.
W3C PROV-O 2013 - Conceptual mapping candidate only; selected source concepts do not establish implementation conformance.

neighbor

WM-PLC-001 Terrain / Landform - Catchment and elevation surfaces remain external representations; record their lineage and body-specific links.
WM-EAR-004 Geology / Mineral Resource - Aquifer host material and geological-unit properties remain external; this root describes water and its qualified host links.
WM-MAT-008 Observation / Measurement Record - Generic observation identity, procedure and result lifecycle are referenced; this model adds water-body support and interpretation.
WM-DAT-010 Time Series / Observation Collection - Time-series storage, generic aggregation lifecycle and delivery mechanics remain external.
WM-FLW-002 Water Supply - Abstraction rights, treatment, distribution and supply operations are external; record only body context and reported balance terms.
WM-EAR-005 Natural Hazard - Hazard occurrence and official warning authority remain external; this model links threshold and regime evidence.
WM-BLT-003 Infrastructure Network - Dams, canals and control structures are external assets; a canal water body is distinct from its engineered channel.
WM-LIV-006 Ecosystem / Biome - Biotic communities and ecosystem lifecycle remain external; only assessment references concerning this body are admitted.
WM-EAR-001 Weather - Weather observations and prediction systems remain external inputs to period balances.
WM-EAR-003 Soil - Soil and infiltration properties remain external input evidence, not local soil records.
WM-FLW-006 Emission - Discharge and environmental flux records are referenced as evidence; no emission permitting or control operations.

What else AI and robots need to interact with it Incomplete

Sources Filled

Surface Hydrology Features (HY_Features) - Conceptual Model - Open Geospatial Consortium
WaterML 2 Part 4 - GroundWaterML 2 - Open Geospatial Consortium
WaterML standards catalogue - Open Geospatial Consortium
WaterML 2.0 Part 2 - Ratings, Gaugings and Sections - Open Geospatial Consortium
CO-OPS Data Retrieval API - National Oceanic and Atmospheric Administration
Water-budget methods - U.S. Geological Survey
Water Quality Portal User Guide - National Water Quality Monitoring Council
Directive 2000/60/EC - Water Framework Directive - European Union
PROV-O: The PROV Ontology - World Wide Web Consortium
Floods and Recurrence Intervals - U.S. Geological Survey

Open questions

Verify direct source responses, actual versions, full technical requirements and current legal texts with complete tables and applicable local authority.
Build pinned schemas and mappings with fixtures for dry reaches, split/merge, branching and reverse flow, groundwater host mismatch, datum changes, stale ratings, censored samples and authorized disposal.
Restore independent external review and deepen specialist profiles before any canonical or publishable-draft promotion.
No executable nested instance schemas, standard conformance mappings or adversarial fixtures.
Detailed marine, wetland, cryosphere, karst, low-flow and nonstationary profiles need further specialist evidence.
Current consolidated law, complete Annex V tables, local rights and indigenous or transboundary governance require qualified review.
Full WaterML Part 1 and full water-budget chapter were not inspected; only selected catalogue and indexed abstract support admitted.
Source HTTP status and version verification and independent external review remain open.

Machine files

Card as JSON Specification AGENTS.md Source Card backlog vercy.card/1

Provenance

world-models research · reviewable-draft

Built from: models/wm-plc-003-water-body/spec.yaml