Category Archives: Equatorial waves

What are equatorial waves and how are they linked to heavy rainfall in Southeast Asia?

Posted on 4 March, 2024 by sdriscoll

By: Dr. Samantha Ferrett What is an equatorial wave and why do we care about them? Atmospheric equatorial waves are confined to, and move, or propagate, along the equator. Equatorial waves can cause variations in pressure, temperature and winds. Each … Continue reading →

Posted in Climate, Equatorial waves | Leave a comment

Is it a normal season this year for tropical cyclones in the Western North Pacific?

Posted on 19 November, 2018 by danaallen

By Xiangbo Feng  The Western North Pacific (WNP) is the most active area for tropical cyclones (TCs).  The number of TCs occurred in the WNP so far (end of October) this year is 26 – just the average number of … Continue reading →

Posted in Atmospheric circulation, Climate, Climate modelling, earth observation, ENSO, Equatorial waves, Historical climatology, Madden-Julian Oscillation (MJO), Numerical modelling, Seasonal forecasting, Tropical cyclones, Waves, Weather forecasting, Western North Pacific, Wind | Leave a comment

How the Hadley Cells work

Posted on 15 October, 2018 by

By Gui-Ying Yang The Hadley Cell, named after British meteorologist George Hadley who discovered this tropical atmospheric overturning circulation, is one of the basic concepts in weather and climate. Figure 1 shows the zonal mean overturning circulation in a latitude height … Continue reading →

Posted in Climate, Climate change, Climate modelling, earth observation, Equatorial waves, extratropical cyclones, Tropical convection, Troposphere, Waves, Wind | Tagged | Leave a comment