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Tropics-wide intraseasonal oscillations. [PDF]
Proc Natl Acad Sci U S AThe tropical climate variability is characterized by various oscillations across a range of timescales. Oscillations that imprint the tropical mean state are generally attributed to slow processes, such as the seasonal cycle or interannual variability.
Bao J, Bony S, Takasuka D, Muller C.
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Frontiers in Earth Science, 2023 The Daily Tropical Cyclone Probability (DTCP), defined as the probability of tropical cyclone occurrence within 500 km of a location in 1 day, is proposed and used in evaluating subseasonal to seasonal (S2S) predictions from the subseasonal to seasonal ...
Xiaochun Wang +6 more
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Frontiers in Environmental Science, 2022 This paper studies the interdecadal transition of interannual variability of summertime intraseasonal rainfall (SIR) over South China (SC). It is found that after the mid-1990s (1995/96), the interannual oscillation of SIR over SC has significantly ...
Wei Lu +7 more
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Intraseasonal Drivers of the 2018 Drought Over São Paulo, Brazil
Frontiers in Climate, 2022 Dry conditions occurred over São Paulo state (southeastern Brazil) from February to July 2018, causing the driest semester in 35 years. Socioeconomic impacts included a record number of fire spots, most adverse conditions to pollutant dispersion in 3 ...
Luiz Felippe Gozzo +17 more
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Multiscale interactions driving the devastating floods in Henan Province, China during July 2021
Weather and Climate Extremes, 2023 The rare extreme flooding event in Henan Province, China, during July 2021 (referred to as the “21.7” flooding event) was attributable to persistent heavy rainfall boosted by an enhanced moist southeasterly flow and substantial moisture convergence ...
Pang-Chi Hsu +6 more
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Diversity of the Boreal Summer Intraseasonal Oscillation [PDF]
Journal of Geophysical Research: Atmospheres, 2021 AbstractBoreal summer intraseasonal oscillation (BSISO) profoundly impacts Northern Hemisphere monsoon onsets and breaks, tropical cyclones, and many climate extremes. BSISO exhibits more complex propagation patterns than the dominant eastward propagation of the Madden‐Julian Oscillation.
Guosen Chen, Bin Wang
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The skeleton of tropical intraseasonal oscillations [PDF]
Proceedings of the National Academy of Sciences, 2009 The Madden–Julian oscillation (MJO) is the dominant mode of variability in the tropical atmosphere on intraseasonal timescales and planetary spatial scales. Despite the primary importance of the MJO and the decades of research progress since its original discovery, a generally accepted theory for its essential mechanisms has remained ...
Andrew J, Majda, Samuel N, Stechmann
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Tracking of Tropical Intraseasonal Convective Anomalies: 1. Seasonality of the Tropical Intraseasonal Oscillations [PDF]
Journal of Geophysical Research: Atmospheres, 2020 AbstractA tracking algorithm based upon a multiple object tracking method is developed to identify, track, and classify Tropical Intraseasonal Oscillations (TISO) on the basis of their direction of propagation. Daily National Oceanic and Atmospheric Administration Outgoing Longwave Radiation anomalies from 1979–2017 are Lanczos band‐pass filtered for ...
Bohar Singh, James L. Kinter
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Environmental Research Communications, 2023 The Silk Road pattern (SRP) is analysed on intraseasonal timescales over summer using empirical orthogonal functions (EOFs) of the meridional wind at 200 hPa.
Mark R Muetzelfeldt +4 more
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Model of Intraseasonal Oscillations in Earth’s Atmosphere [PDF]
Physical Review Letters, 2007 We suggest a way of rationalizing intraseasonal oscillations of Earth's atmospheric flow as four meteorologically relevant triads of interacting planetary waves, isolated from the system of all of the rest of the planetary waves. Our model is independent of the topography (mountains, etc.) and gives a natural explanation of intraseasonal oscillations ...
Elena, Kartashova, Victor S, L'vov
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