A multi-disciplinary research group based at UNSW, Australia. Affiliated to @21stcenturyweather.bsky.social and @antarcticsciaus.bsky.social
CCRC houses research expertise in the key areas of Earth's climate: atmospheric, oceanic & terrestrial processes
UNSW Climate Change Research Centre
Thanks to @timraupach.com and colleagues for this work.
In a new paper led by Valentina Ortiz Guzmán, CCRC researchers show that stalling weather systems preferentially occur close to the east coast of every continent. They move slowly and produce extreme rainfall, increasing large-scale flood risks along these coasts.
As Indonesia builds its new capital, how will urbanization affect heatwave risk?
Using high-resolution simulations, our researchers found that urbanization increases temperatures in IKN, but humidity changes can partly offset heat stress impacts. Climate-informed urban planning is essential.
They also found that around 20% of the apparent long term trend in rainfall frequency and intensity can be linked to changes in microwave satellite sampling over time. after accounting this artifacts, the urban rainfall signal remains, but trend magnitudes need careful interpretation.
They found clear urban rainfall hotspots, mainly in rainfall occurrence. Rain events are more frequent over many urban areas than in nearby rural regions. But the story is more complicated. The signal only comes from microwave satellite observations. ++
Where will hail risk increase in a warmer world?
A new Nature Climate Change study by CCRC & ICRR researchers finds hail-prone conditions are shifting poleward, with winter hail risk projected to increase in some agricultural regions.
In a new study published by @ioppublishing.bsky.social, Senior Lecturer @drjucker.bsky.social shows that estimating future rainfall increase by using a static 7% per degree warming might considerably underestimate rainfall produced by extratropical weather systems.
@nsw-bnhrc.bsky.social
📢New paper
Do satellite precipitation datasets detect urban rainfall signals?
Yes
In a new study, CCRC researcher Shankar Sharma, @jasonpevans.bsky.social, Andy Pitman and Ali Behrangi analysed IMERG satellite rainfall data across 15 global cities. ++
Read more: iopscience.iop.org/article/10.1...
How do cities influence rainfall?
A recent study by Shankar Sharma, Jason Evans, and Andy Pitman, now featured in @aunz.theconversation.com, used more than two decades of satellite observations across major global cities to investigate how urbanisation affects rainfall patterns.++
The study found that cities often experience rainfall more frequently than surrounding areas, while rainfall intensity per event is not always stronger over urban areas.
Read more:
theconversation.com/cities-are-m...
