Journal article

Multiscale Influences on Rainfall in Northeast Australia

Thi Lan Dao, Claire L Vincent, Todd P Lane

Journal of Climate | American Meteorological Society | Published : 2023

Abstract

This study examines the multiscale modulation of mean and extreme rainfall in Northeast (NE) Australia under different background modes of variability, which is a new aspect given the high-resolution and long-term observational datasets. Daily rainfall probability is significantly modified by the Madden–Julian oscillation (MJO), and its influence varies with the seasons and is associated with atmospheric circulation anomalies. Rainfall generally decreases during El Niño and increases during La Niña years; however, there is a notable spatial nuance to El Niño–Southern Oscillation (ENSO)-associated extreme rainfall, with some locations showing the opposite precipitation response to the typical..

View full abstract

Grants

Awarded by Australian Research Council (ARC) Centre of Excellence for Climate Extremes


Funding Acknowledgements

This work was funded by the Melbourne Research Scholarship, the Rowden White Scholarship, and the Australian Research Council (ARC) Centre of Excellence for Climate Extremes (CE170100023) . Analysis was performed using the National Computing Infrastructure (NCI) National Facility. We thank Yi Huang and Hoa Quynh Nguyen Dao for their valuable comments during manuscript revision process. We also thank the three reviewers for their critical comments and helpful suggestions to improve the quality of this study.