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  1. No Access

    Article

    The combined influence of the stratospheric polar vortex and ENSO on zonal asymmetries in the southern hemisphere upper tropospheric circulation during austral spring and summer

    The influence of El Niño Southern Oscillation (ENSO) and the Stratospheric Polar Vortex (SPV) on the zonal asymmetries in the Southern Hemisphere atmospheric circulation during spring and summer is examined. T...

    Marisol Osman, Theodore G. Shepherd, Carolina S. Vera in Climate Dynamics (2022)

  2. No Access

    Article

    Changes in Northern Hemisphere temperature variability shaped by regional warming patterns

    Global warming involves changes not only in the mean atmospheric temperature, but also in its variability and extremes. Here, we use a feature-tracking technique to investigate the dynamical contribution to te...

    Talia Tamarin-Brodsky, Kevin Hodges, Brian J. Hoskins… in Nature Geoscience (2020)

  3. Article

    Open Access

    Storyline description of Southern Hemisphere midlatitude circulation and precipitation response to greenhouse gas forcing

    As evidence of climate change strengthens, knowledge of its regional implications becomes an urgent need for decision making. Current understanding of regional precipitation changes is substantially limited by...

    Julia Mindlin, Theodore G. Shepherd, Carolina S. Vera, Marisol Osman… in Climate Dynamics (2020)

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    Article

    Clouds, circulation and climate sensitivity

    Our understanding of the interactions between clouds, circulation and climate is limited. Four central research questions — now tractable through advances in models, concepts and observations — are proposed to...

    Sandrine Bony, Bjorn Stevens, Dargan M. W. Frierson, Christian Jakob… in Nature Geoscience (2015)

  5. No Access

    Article

    Atmospheric circulation as a source of uncertainty in climate change projections

    Scientific confidence in climate change effects is much higher for aspects related to global patterns of surface temperature, than for circulation. Circulation will remain hard to predict, necessitating a risk...

    Theodore G. Shepherd in Nature Geoscience (2014)

  6. No Access

    Article

    Climate change projections and stratosphere–troposphere interaction

    Climate change is expected to increase winter rainfall and flooding in many extratropical regions as evaporation and precipitation rates increase, storms become more intense and storm tracks move polewards. He...

    Adam A. Scaife, Thomas Spangehl, David R. Fereday, Ulrich Cubasch… in Climate Dynamics (2012)

  7. No Access

    Article

    Large climate-induced changes in ultraviolet index and stratosphere-to-troposphere ozone flux

    Now that stratospheric ozone depletion has been controlled by the Montreal Protocol, interest has turned to the effects of climate change on the ozone layer. An atmospheric chemistry model suggests that climat...

    Michaela I. Hegglin, Theodore G. Shepherd in Nature Geoscience (2009)

  8. No Access

    Article

    Raising the roof

    The atmosphere's lowermost 10 km have long been assumed to be almost solely responsible for weather and climate on Earth. Emerging evidence points to the layer above as an important influence on surface winds ...

    Tiffany A. Shaw, Theodore G. Shepherd in Nature Geoscience (2008)

  9. No Access

    Chapter

    Ripa’s Theorem and its Relatives

    In 1983, Pedro Ripa proved a stability theorem for parallel flows in rotating shallow-water dynamics which has since come to be known as Ripa’s theorem. It is singular for being the only known Arnol’d-type sta...

    Theodore G. Shepherd in Nonlinear Processes in Geophysical Fluid Dynamics (2003)