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Research draft

drainage basin

vr.tr.drainage-basin · PHY.PLC

Let an agent identify drainage basins and their boundaries, explain hydrology and water balance, support water management and flood risk questions, and describe transboundary governance.

Thing Registry Physical world and living systems

Research draft, second pass

A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.

written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify

Researched by: Claude

Purpose and description

Let an agent identify drainage basins and their boundaries, explain hydrology and water balance, support water management and flood risk questions, and describe transboundary governance.

The area of land where all surface water drains to a common outlet such as a river mouth, lake or, in endorheic basins, an inland sink, bounded by drainage divides and organised into sub-basins; drainage basins are the units of hydrology, water management and flood risk and often cross political boundaries.

What it is for: Hydrology and water resource management.

It can be identify the basin of a place or river; explain water balance and flow; support flood risk and water management questions; describe basin governance.

Distinguishing features

Common outlet

Topographically bounded

Nested sub-basins

Management unit

What it looks like

Land areas defined by divides, visible on topographic maps.

How it is recognised

Bounded by drainage divides

All water flows to one outlet

A river is the channel; the basin is the whole catchment

Related models

is a kind of - category

fluvial landform

is a kind of - category

region

drains to - outlet

ocean

contains - landforms

alluvial-fan

In practice

Families and kinds

river basins draining to the sea

endorheic basins

lake basins

sub-basins and headwater catchments

transboundary basins

Standards and regulation

EU Water Framework Directive basin management

Transboundary water conventions

National flood risk regulations

Failure modes and hazards

Flooding

Pollution transport downstream

Upstream-downstream conflicts

Also called

lake systemendorheic basinClass B river systemClass A river systemsub-basinzero-order basincoastal river basinsexperimental watershedartesian basinRiver Basin Management Unit (Indonesia)Zonation piscicole de Huetarheic basinexorheic basincatchment areaColorado drainage basinsrunoffwatersheds of North Americasea basin

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Drafted structure

Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.

Identify Which basin.

Divides define basins.

Locate

Basin of a place.

Locate

Basin.

  1. Which drainage basin and sub-basin does this place belong to, according to hydrological data? provenance
  2. Where does its water end up? definition

Delineate

Boundaries.

Delineate

Delineation.

  1. How are basin boundaries delineated from elevation data? action
  2. How is basin area computed? measurement
Hydrology Water in the basin.

Water balance.

Balance

Water balance.

Balance

Water balance.

  1. What are the precipitation, evaporation, runoff and storage of this basin? measurement
  2. How does land use affect runoff? provenance

Endorheic

Closed basins.

Endorheic

Closed basins.

  1. What is an endorheic basin, and why are its lakes sensitive to change? definition
  2. Which examples are notable? provenance
Manage Water management.

Basin-scale planning.

Flood

Flood risk.

Flood

Flood risk.

  1. What is the flood risk in this basin, according to official maps and warnings? provenance
  2. Is a flood warning in force now? boundary

Plans

Basin management plans.

Plans

Plans.

  1. Which basin management plan applies, and what are its objectives? provenance
  2. How can the public participate? provenance
Governance Shared basins.

Cooperation.

Transboundary

Cross-border basins.

Transboundary

Transboundary basins.

  1. Which countries share this basin, and which agreements govern it? provenance
  2. Are disputes described neutrally with attribution? boundary

Teach

Teaching.

Teach

Teaching.

  1. How can drainage basins be taught with maps and models? action
  2. Which misconceptions arise? provenance

What the second pass must settle

  • Should each major basin be a separate entry?
  • How should hydrological data be linked?
  • How should governance bodies be linked?
Draft as JSON