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      • Kim Reid’s PhD blog
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Weather & Climate interactions news

  • Research brief: Why the 2020 La Nina didn’t lead to a wet Spring in SE Australia

    Research brief: Why the 2020 La Nina didn’t lead to a wet Spring in SE Australia

    During the 2020 La Nina, many areas of Australia received near average to severely below-average rainfall, particularly during November. CLEX researchers found that several compounding factors contributed to the drier-than anticipated spring conditions.

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    24 September 2021
  • Research brief: backyard weather stations add 2.3m data points to Sydney temperature record

    Research brief: backyard weather stations add 2.3m data points to Sydney temperature record

    Variability in urban land-use results in microclimatic variability across a city that is not picked up by government weather station networks. Crowdsourced weather stations can fill these gaps.

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    22 September 2021
  • Research brief: Why Melbourne’s worst storms come in lines

    Research brief: Why Melbourne’s worst storms come in lines

    It has long been suggested in the literature, and discussed casually by meteorologists, that rainfall in Melbourne often occurs as lines of precipitation. However, this had yet to be quantified. CLEX researchers analysed 15 years of radar data from the Australian Radar Archive, using an objective method to identify and track these ‘linear systems’ based on radar reflectivity, size, and shape characteristics.

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    3 September 2021
  • Antarctic climate variations found to originate north of Australia

    Antarctic climate variations found to originate north of Australia

    CLEX researchers have overturned a scientific paradigm that has existed for 50 years. New research published in Nature Geoscience shows the massive convection caused by the ocean just north of Australia, causes a chain reaction that is strong enough to put an almost permanent dent in the powerful winds that circle the Antarctic.

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    27 August 2021
  • Research brief: Drones used to map thunderstorms

    Research brief: Drones used to map thunderstorms

    The overarching goal of the Colorado State University Convective CLoud Outflows and UpDrafts Experiment (C3LOUD-Ex) was to enhance our understanding of deep convective storm processes and how they are represented in numerical models. Pivotal to the experiment was a novel “Flying Curtain” strategy.

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    16 July 2021
  • Research brief: Urban heat island effect amplifies Sydney heatwaves

    Research brief: Urban heat island effect amplifies Sydney heatwaves

    This research uses Sydney, Australia’s largest city, as a test case for our new configuration of the Weather and Research Forecasting model run at a very high resolution of 800 m with a new urban classification scheme that describes the complexity of Sydney’s built environment.

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    14 July 2021
  • Research brief: How ENSO affects the North Atlantic

    Research brief: How ENSO affects the North Atlantic

    In this study, CLEX researchers and colleagues showed that the North Atlantic sea-surface temperature response to ENSO is nonlinear with respect to the strength of the sea-surface temperature forcing in the tropical Pacific.

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    14 July 2021
  • Research brief: How cumulus convection changes with extreme rainfall

    Research brief: How cumulus convection changes with extreme rainfall

    CLEX researchers used data from a wind profiler radar pair at Darwin, Australia, to determine the characteristics of individual up- and downdrafts observed at the site. They found updrafts with 5km vertical heights with extreme rain rates.

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    13 July 2021
  • 800m Simulation of 2017 heatwave – video & transcript

    800m Simulation of 2017 heatwave – video & transcript

    Research by Annette Hirsch into heatwaves over Sydney has been turned into a spectacular animation by Drew Whitehouse from NCI Vizlab.

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    15 June 2021
  • Research brief: The rare event that amplified the dry Australian spring of 2019 is unlikely to happen again

    Research brief: The rare event that amplified the dry Australian spring of 2019 is unlikely to happen again

    An unusual southern stratospheric warming event amplified the conditions that led to the Black Summer bushfires of 2019/20. CLEX researchers explored how frequently these rare warming events may occur with climate change.

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    27 May 2021
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