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Atmospheric Sciences and Global Change
  • convective transport

    Unlocking Cloud Gridlock

    Even as computing power increases, current climate model formulas struggle to handle storm clouds at today's higher resolutions and smaller model grid sizes. Cumulus storm cloud systems are still only partially resolved. Armed with a new formula developed by a PNNL-led research team, the approach breaks the storm cloud modeling gridlock by more accurately depicting how cumulus clouds transport moisture through the atmosphere.

  • Dr. L. Ruby Leung

    Ruby Leung Named to AGU Fellows Selection Committee

    Dr. L. Ruby Leung, Laboratory Fellow and atmospheric scientist at PNNL, was invited to serve on the American Geophysical Union's Fellows Selection Committee for the Atmospheric Sciences. An AGU Fellow since 2013, Leung joins nine other AGU Fellows for a two-year term on the committee. AGU is a professional scientific organization representing more than 62,000 members advancing the Earth and space sciences.

  • cars covered with snow drifts during cold snap

    Cold Snaps Linger Despite Climate Change

    A new climate analysis from scientists at PNNL and the University of Reading (UK) found that under climate warming, cold air outbreaks, or CAOs, are projected to continue over North America but less frequently. From Alaska and southwestern Canada to the northwestern and mid-western United States, the top five coldest historical events may still happen. As humans, ecosystems, and societal infrastructures adapt to an average warmer climate, these findings show continued future challenges in coping with extreme cold events.

  • conceptual climate model tradeoff

    Climate Model Trade-Offs

    Climate modelers can now divide Earth's atmosphere into smaller areas to understandmore details in the climate. But how do these large models behave with a higher resolution? Using a regional atmospheric model as a proxy for upcoming high-resolution global climate models, researchers at PNNL found that global models carry many biases into the higher resolution regional output despite its finer detail. The research identified certain tradeoffs that highlight modeling challenges when moving from coarse to high-resolution simulations.

  • Dr. Ben Kravitz

    Kravitz to Provide Climate Modeling Expertise to ESD Editorial Board

    Congratulations to Dr. Ben Kravitz, atmospheric scientist at Pacific Northwest National Laboratory, on being chosen to serve on the editorial board of Earth System Dynamics (ESD). Kravitz, chosen for his expertise in climate modeling and geoengineering, will assist with peer-reviews to evaluate manuscripts submitted for publishing.

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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