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Research draft

discharge

vr.tr.discharge · XCT.TME

Let an agent explain river discharge, relay measurement methods, units, regimes and uses from hydrology sources, describe the named regimes and flag the unverified alias, route flood warnings, and distinguish discharge from stage or water level, flow velocity, runoff and electrical or medical discharge.

Thing Registry Cross-cutting context

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 explain river discharge, relay measurement methods, units, regimes and uses from hydrology sources, describe the named regimes and flag the unverified alias, route flood warnings, and distinguish discharge from stage or water level, flow velocity, runoff and electrical or medical discharge.

In hydrology, the volume of water flowing through a river or stream cross-section per unit time, usually in cubic metres per second, measured at gauging stations using stage-discharge relationships, current meters or acoustic Doppler profilers; related concepts the registry aliases name include the river regime, the seasonal pattern of discharge, classified as glacial, nival or snowmelt, nivo-glacial and pluvial or rain-fed regimes, while Grussil could not be verified. Discharge data inform flood forecasting, water supply and hydropower, and people should follow official flood warnings.

What it is for: Quantifying river flow.

It can be explain measurement; relay regimes; describe named regimes; route flood warnings.

Distinguishing features

Volume per time

Measured at gauges

Seasonal regimes

Flood relevance

What it looks like

Not a physical object; values from gauging stations and hydrographs.

Physical character

SI unit: m3/s unit

Amazon mean discharge: about 200,000 m3/s - estimates vary

ISO 1100-2: stage-discharge relation standard

How it is recognised

Volume flow rate of a river

Grussil, river regime, glacial regime, rain-fed river, nival regime, nivo-glacial regime

Stage is water level; velocity is speed; runoff is water leaving land; electrical and medical discharge are other senses

Related models

is a kind of - in registry terms

volume flow rate

is measured at -

stream gauge

is shown in -

hydrograph

is contrasted with -

stage (hydrology)

In practice

Families and kinds

glacial regimes

nival regimes

pluvial regimes

mixed regimes

Standards and regulation

ISO 748 and ISO 1100 flow measurement standards

WMO hydrological practice guides

Failure modes and hazards

Ignoring flood warnings

Rating curve errors in extreme floods

Unverified aliases

Also called

Grussilriver regimerégime glaciairerain rivernival regimenivo-glacial regimemixed river

Where this came from

wikidata · CC0 1.0

Source repository Registry entry point

Also registered as vr.tr.discharge-process

Drafted structure

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

Understand What discharge is.

Science.

Definition

Definition.

Definition

Definition.

  1. Is there a flood warning or rapidly rising water, in which case follow official instructions and move to higher ground? boundary
  2. What is river discharge, and how does it differ from stage, velocity, runoff and other senses of discharge? definition

Regimes

Named regimes.

Regimes

Regimes.

  1. What are glacial, nival, nivo-glacial and pluvial regimes, and what might Grussil be? definition
  2. Which entry fits the specific regime? action
Measurement Measurement.

Regulation.

Rating curves

Stage-discharge.

Rating curves

Rating curves.

  1. How are rating curves built from stage and flow measurements? measurement
  2. Which references are standard? provenance

ADCP

Acoustic Doppler methods.

ADCP

ADCP.

  1. How do acoustic Doppler profilers measure discharge? measurement
  2. Which sources are cited? provenance
Hydrology Hydrology.

Science.

Seasonal patterns

Seasonal patterns.

Seasonal patterns

Seasonal patterns.

  1. How do snowmelt and rainfall shape seasonal flow? provenance
  2. Which entry fits river regime? action

Climate

Climate effects.

Climate

Climate.

  1. What do studies report about glacier retreat changing river regimes, with findings attributed? provenance
  2. Is the presentation neutral and attributed? boundary
Context Uses.

Context.

Floods

Flood forecasting.

Floods

Floods.

  1. How is discharge used in flood forecasting? provenance
  2. Is the information current? boundary

Water resources

Water supply and hydropower.

Water resources

Water resources.

  1. How do planners use discharge records for supply and hydropower? provenance
  2. Which entry fits hydropower? action

What the second pass must settle

  • The registry alias Grussil could not be verified and should be reviewed
  • Should river regime be a separate entry?
  • How should national gauge data be linked?
Draft as JSON