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Atmospheric Sciences and Global Change
  • dynamical convergence

    Nailing Down the Jet Stream

    The complex models scientists rely on to determine weather and potential climate changes have a hidden flaw. They cannot agree on the behavior of one of the most important circulation features: the jet stream. Now, research led by PNNL has developed a diagnostic framework that can predict how well a model will simulate the jet stream. This framework may prove a milestone in accurately capturing jet stream dynamics and location.

  • atmospheric rivers model

    Demystifying Aerosols

    Using innovative modeling and diagnostic methods, a research team led by Pacific Northwest National Laboratory demonstrated that higher-resolution models more accurately depict the interactions between particles suspended in air, called aerosols, and the complex processes within clouds. They identified the physical mechanisms behind the improved calculations, which could ultimately guide the development of next-generation climate models.

  • Dr. Yun Qian

    Yun Qian Directed International UQ Workshop

    Dr. Yun Qian, atmospheric and climate modeling scientist at PNNL organized and directed an international workshop on “Uncertainty Quantification in Climate Modeling and Projection” in Trieste, Italy. Drawing on international interest nearly 70 scientists and students from some 30 countries around the world attended the five-day workshop at the Abdus Salam International Centre for Theoretical Physics (ICTP) in mid-July 2015.

  • Dr. Samson Hagos

    Hagos Contributes to State of the Climate Report

    Dr. Samson Hagos, atmospheric scientist at Pacific Northwest National Laboratory, led a regional climate study that was included in the international report State of the Climate in 2014. This report was featured in Bulletin of the American Meteorological Society.

  • Dr. Katherine Calvin

    Katherine Calvin Honored for Early Career Exceptional Achievement

    Congratulations to Dr. Katherine Calvin who received a 2015 Ronald L. Brodzinski Early Career Exceptional Achievement award for leadership in research that integrates environmental and climate change research and their socioeconomic implications for the future. Calvin and other Science and Engineering Achievement awardees will be recognized at PNNL’s Pathway to Excellence Award Banquet in September.

How do human activities and natural systems interact to affect the Earth's climate? Ultimately, that is the question challenging scientists in PNNL’s Atmospheric Sciences & Global Change Division.

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Atmospheric Sciences & Global Change

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