The impact of diurnal precipitation over Sumatra Island, the Indonesian Maritime Continent (MC), on synoptic disturbances eastern Indian Ocean is examined using high-resolution rainfall data from Global Satellite Mapping Precipitation project and Japanese 55-year Reanalysis during rainy season September to April for period 2000–2014. When cycle strong, high area observed in afternoon migrates o...

The Madden–Julian Oscillation’s (MJO’s) “skeleton” is its fundamental features on intraseasonal/planetary scales: (i) slow eastward phase speed of roughly 5 m/s, (ii) peculiar dispersion relation with dω/dk ≈ 0, and (iii), horizontal quadrupole vortex structure. The MJO skeleton model is a minimal, nonlinear oscillator model that captures these three features together. The fundamental mechanism...

The influence of the Madden–Julian oscillation (MJO) on precipitation over Tibetan Plateau (TP) during boreal summer is investigated using observational and reanalysis data 1980–2020. results show that most areas eastern TP increases (decreases) in MJO Phases 1–2 (5–6), especially when eastward-propagating active convection located Indian Ocean (Western Pacific) Phase 2 (6). significant negativ...

There are rich variabilities in the global atmosphere and climate system on intraseasonal time scale. This review article focuses Madden-Julian Oscillation (MJO), which is dominant mode of tropical variability. The MJO has a tremendous impact represents major source skill for subseasonal to seasonal predictions. Our knowledge been advanced recent decades, but challenges remain understanding, si...

The influence of the Madden-Julian Oscillation (MJO) on surface air temperature over Iran is examined using daily data from meteorological stations 1979 to 2015. Composites anomalies are positive in MJO phases 1 and 8 negative 3–4 with broader region tendencies also 2 7, 5–6. This variability associated horizontal advection, whereby southerly (northward) winds act heat northerly (southward) coo...

Most studies of the impact sea surface temperature (SST) have explored rainfall in a part Indonesia. This paper takes different approach and explores air-sea coupling interaction between Madden-Julian Oscillation (MJO) SST on variability East Nusa Tenggara (NTT). study uses daily observation from some NTT seasonal zone (ZOM) 1991to 2016. Meanwhile, gridded data around was obtained Japan Meteoro...

Reducing systematic errors of state-of-the-art General Circulation Models (GCMs) will increase our confidence on the projection of future climate change and improve our forecast skills of present-day weather and climate variability. One systematic error of current GCMs is the failure to simulate a dominant tropical atmospheric variability: Madden-Julian Oscillation (MJO). Through downscale and ...

The Madden-Julian oscillation (MJO) modulates atmospheric river (AR) activity along the West Coast of North America. forecast skill ARs based solely on MJO phase is limited, motivating identification other predictive factors. Here we show that low-frequency variability Pacific/North American (PNA) pattern mostly independent MJO, and monthly PNA influences MJO-AR relationship much more robustly ...