Dec 12, 2005 · A subgroup was organized to focus on MJO operational prediction and was tasked to develop a MJO forecast metric for comparison of dynamical models from operational global …

In the Pacific, strong MJO activity is often observed 6 to 12 months prior to the onset of an El Niño episode, but is virtually absent during the maxima of some El Niño episodes, while MJO activity is …

Dec 31, 2014 · The MJO consists of two parts, or phases: one is the enhanced rainfall (or convective) phase and the other is the suppressed rainfall phase. Strong MJO activity often dissects the planet …

There is evidence that the MJO influences the El Nino Southern Oscillation (ENSO) cycle. It does not cause El Nino or La Nina, but it can contribute to the speed of development and intensity of...

The Madden–Julian Oscillation (MJO) is the largest element of the intraseasonal (30–90 days) variability in the tropical atmosphere. It is a large-scale coupling between atmospheric circulation and tropical …

The MJO is best defined over the oceanic warm pool, which extends from the Indian Ocean to the central Pacific and where complex variations of precipitation occur from day to day.

The Madden-Julian Oscillation, often referred to as the MJO, is a mode of sub-seasonal atmospheric variability that influences the location and strength of tropical precipitation.

PSL is creating a set of MJO timeseries that quantify current and historic MJO activity. Links and descriptions are below as well as links to some other MJO timeseries created at other institutions.

May 27, 2025 · The study highlights why getting the initial state of the atmosphere right when using models for MJO prediction is so important. When upper-air observations are incorporated into the …

Following a well-defined MJO during late November, the time longitude plot indicates other modes of tropical variability such as a fast moving Kelvin wave have become more dominant the past few weeks.