Back to modulesCourse overview

Yachtmaster Ocean revision module 8 of 10

WX

Worldwide Meteorology

Global circulation, trade winds, ITCZ, pressure systems, routing weather, and ocean forecasts.

worldwide meteorologytrade winds

3 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision
  • Explain global circulation, trade winds, ITCZ, pressure systems, routing weather, and ocean forecasts.
  • Apply worldwide meteorology to a realistic onboard situation.
  • Recall the core check: air rises near the equator and sinks in subtropical highs.

A self-guided revision companion that explains essential concepts, then helps you practise and test them. It supports—but does not replace—recognised instruction, practical training, assessment or certification. Access is a one-time payment, not a subscription.

More ways to revise
Lesson routeGlobal Circulation0/1 read

Lesson 1 of 1

Global Circulation

Worldwide meteorology starts with uneven heating, rising air near the equator, sinking air in subtropical highs, and the Coriolis effect. This creates broad wind belts, pressure zones, and ocean-route patterns.

Ocean skippers need the big picture before the local forecast: trade winds, westerlies, doldrums/ITCZ, monsoon regions, subtropical highs, fronts, and seasonal storm tracks.

  • Air rises near the equator and sinks in subtropical highs.
  • Trade winds blow towards the equator and are deflected by Coriolis.
  • Mid-latitude westerlies and frontal depressions dominate many ocean routes.
  • Seasonal movement changes route decisions.
FeatureTypical effectPlanning concern
TradesPersistent easterly componentFast passages but squalls and acceleration zones
ITCZLight winds, squalls, thunderstormsCrossing timing and fuel/water use
Subtropical highSettled or light winds near centreCalms and routing around high
WesterliesMobile lows and frontsGales, fronts, wave systems
Continue to Practise

Full Yachtmaster Ocean revision access

Get every teaching section, guided practice set, topic test, one-card-at-a-time flashcard, and the full revision path.