Journal article

The Australian Northwest Cloudband: Climatology, Mechanisms, and Association with Precipitation

Kimberley J Reid, Ian Simmonds, Claire L Vincent, Andrew D King

JOURNAL OF CLIMATE | AMER METEOROLOGICAL SOC | Published : 2019

Abstract

Australian northwest cloudbands (NWCBs) are continental-scale bands of continuous cloud that stretch from northwest to southeast Australia. In earlier studies, where the characteristics of NWCBs and their relationship with precipitation were identified from satellite imagery, there was considerable uncertainty in the results due to limited quality and availability of data. The present study identifies NWCBs from 31 years of satellite data using a pattern-matching algorithm. This new climatology is the longest record based entirely on observations. Our findings include a strong annual cycle in NWCB frequency, with a summer maximum and winter minimum, and a statistically significant increase i..

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Grants

Awarded by Australian Research Council (ARC)


Awarded by ARC Centre of Excellence for Climate Extremes


Awarded by ARC


Funding Acknowledgements

The work of K. Reid was funded by the Department of Environment, Land, Water and Planning of the Victorian Government, the work of I. Simmonds was funded by the Australian Research Council (ARC; DP140102855), the work of C. Vincent was funded by the ARC Centre of Excellence for Climate Extremes (CE170100023), and the work of A. King was funded by the ARC (DE180100638). The authors thank William Wright for useful discussions, and Irina Rudeva for providing the front dataset.