trough
Let an agent explain atmospheric troughs, relay their formation, weather effects and regional examples from meteorological sources, describe the named systems, point people to official forecasts and warnings, and distinguish meteorological troughs from ridges, fronts, ocean trenches and feeding troughs.
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 atmospheric troughs, relay their formation, weather effects and regional examples from meteorological sources, describe the named systems, point people to official forecasts and warnings, and distinguish meteorological troughs from ridges, fronts, ocean trenches and feeding troughs.
In meteorology, an elongated region of relatively low atmospheric pressure, the opposite of a ridge, often associated with clouds, precipitation and wind shifts, including upper-level and surface troughs, tropical waves or easterly waves that can seed tropical cyclones, the monsoon trough of seasonal low pressure, the Persian trough, a summer thermal low over Iran, Iraq and the Gulf, the Red Sea trough influencing weather in the eastern Mediterranean and Middle East, and the Central American gyre, a broad low-pressure circulation that can produce heavy rain and cyclones; the word also names geological and physical troughs.
What it is for: Not applicable; a weather pattern.
It can be explain formation and weather effects; relay regional examples; describe named systems; point to official forecasts.
Distinguishing features
Low pressure axis
Associated weather
Surface and upper-level
Regional seasonal forms
What it looks like
Seen on weather charts as dashed lines or bends in isobars and on satellite images as cloud bands.
Physical character
chart symbol: dashed line note - common convention
tropical waves: many Atlantic hurricanes originate from them note
registry parent: physico-geographical object note
How it is recognised
Elongated area of low atmospheric pressure
Tropical wave, monsoon trough, Persian trough, Red Sea trough, Central American gyre
Ridges are high pressure; fronts separate air masses; ocean trenches are seabed features; feeding troughs hold animal food
Related models
is a kind of - in meteorological terms
includes -
includes -
is contrasted with -
In practice
Families and kinds
upper-level troughs
surface troughs
tropical waves
monsoon troughs
thermal troughs such as the Persian trough
broad gyres
Standards and regulation
WMO meteorological terminology
National weather service warning systems
Failure modes and hazards
Heavy rain and flooding with troughs and gyres
Confusing meteorological and geological troughs
Using outdated forecasts
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.trough-artifact
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 a trough is.
Science.
Definition
Definition.
Definition
Definition.
- What is a meteorological trough, and how does it differ from ridges, fronts, ocean trenches and feeding troughs? definition
- Is severe weather forecast, in which case follow official warnings? boundary
Systems
Named systems.
Systems
Systems.
- What are tropical waves, the monsoon trough, Persian trough, Red Sea trough and Central American gyre? definition
- Which entry fits the specific system? action
Meteorology Dynamics.
Science.
Formation
Formation.
Formation
Formation.
- How do troughs form in the jet stream and at the surface? provenance
- Which references are standard? provenance
Weather
Weather effects.
Weather
Weather.
- Why do troughs bring clouds, rain and wind shifts? provenance
- Which sources are cited? provenance
Regional Regional systems.
Application.
Tropics
Tropical systems.
Tropics
Tropics.
- How do tropical waves and the Central American gyre lead to cyclones? provenance
- Which entry fits tropical cyclogenesis? action
Middle East
Middle Eastern troughs.
Middle East
Middle East.
- How do the Persian and Red Sea troughs shape weather in the region? provenance
- Which entry fits climate of the Middle East? action
Context Forecasting.
Context.
Charts
Weather charts.
Charts
Charts.
- How are troughs shown on synoptic charts? provenance
- Which entry fits surface weather analysis? action
Monsoon
Monsoon.
Monsoon
Monsoon.
- How does the monsoon trough affect South Asian rainfall? provenance
- Which entry fits South Asian monsoon? action
What the second pass must settle
- Should the Persian and Red Sea troughs be separate entries?
- How should meteorological sources be linked?
- Should geological troughs be disambiguated?