Bureau of Meteorology

Building blocks of localized storm tracks: revisiting asymmetries between the NH and SH in storm track strength

An intermediate-complexity moist general circulation model is used to investigate the forcing of localized storm tracks by land–sea contrast, horizontal gradients in ocean heat uptake, planetary albedo, and topography. The additivity of the response to these building blocks is in...

Fifteen years of regional climate downscaling in CORDEX-Australasia

Regional climate modelling plays a central role in understanding and projecting climate change across Australasia, a region characterised by complex topography, diverse climate regimes, and high exposure to climate extremes. Over the past fifteen years, CORDEX-Australasia has coo...

The Maintenance of the Longitudinal Subtropical Jet Structure During Austral Winter

Abstract The austral winter subtropical jet maintenance is analyzed by comparing the observed upper tropospheric zonal momentum budget with an idealized aquaplanet model simulation with localized tropical heating in the summer hemisphere. The model and observations show great sim...

Invited perspectives: Towards usable compound event research

Abstract. Supporting stakeholders with science-based decision-making to mitigate and adapt to climate change impacts is a central mandate of the climate research community. In particular, mapping out scenario-dependent climate risk landscapes is one of the most pressing challenge...

Enhancing the Australian coastal wave buoy network: development, implementation, national coordination and future directions

Context Although long-running, regional wave buoy networks exist within Australia, there remain critical spatial gaps in observations and limited coordination of data standards. These limitations result in challenges for using existing observations for national-scale applications...

Refining the Simulation of Mixed‐Phase Clouds Over Coastal Antarctica With a Tailored Ice Nucleating Particle Parameterization

Abstract Climate models have substantial biases in downwelling shortwave radiation over the Southern Ocean (SO) and Antarctica, primarily due to their inability to accurately represent the frequent occurrence of low‐level mixed‐phase clouds. Building on the evaluation of the Unif...

Development of operational 0.01° resolution gridded historical daily precipitation data for Australia

Long-term gridded precipitation data are critical for better scientific understanding, environmental management and prediction of extreme events. We present the development and evaluation of daily 0.01° (~1- × 1-km) gridded precipitation data for Australia from 1880 onwards. The...

Forecast-based attribution of the role of stratospheric variability in weather extremes

Abstract. Variability of the stratospheric polar vortex, particularly its dramatic breakdown during sudden stratospheric warming (SSW) events, has been linked to a number of surface weather extremes. However, attributing the role of stratospheric variability in a specific observe...