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Atmospheric Sciences and Global Change
  • World water scarcity map

    Water Scarcity and Climate Change through 2095

    PNNL researchers, working at the Joint Global Change Research Institute, showed the effects of global change on water scarcity using a unique modeling engine. When they incorporated water use and availability and ran scenarios of possible climate mitigation policy targets, they found that without any climate policy to curb carbon emissions, half the world will be living under extreme water scarcity. Some climate mitigation policies mayexacerbate water scarcity.

  • satellite view of night lights

    Night Lights Guide Urban Mappers

    A new method maps urban areas using the night sky light intensity measured by satellites;the method was developed by researchers at PNNL working at the Joint Global Change Research Institute. They collaborated with scientists from the National Oceanic and Atmospheric Administration and The Ohio State University to reduce the over- and under-estimations associated with previous techniques when mapping a large area. The new method also shows the potential to map the extent of urban areas with a global perspective, and the changes over time, using existing data.

  • Plane wing ISDAC clouds model output

    Masters of the Misunderstood Mixed-Phase Cloud

    Mixed-phase clouds, ubiquitous in the Arctic, are an enigma for scientists trying to understand their role in affecting the climate. Using 11 different models, PNNL scientists found that ice number concentration exerts a significant influence on the cloud's structure and that ice particle size distributions influence the cloud lifetime. Understanding the importance of each property to influence cloud formation, precipitation and lifetime will improve climate modeling and projections in this sensitive area of the Earth.

  • Dr. Jiwen Fan

    Jiwen Fan receives PNNL Award for Exceptional Achievement

    Congratulations to Dr. Jiwen Fan on receiving a 2014 Ronald L. Brodzinski Award for Early Career Exceptional Achievement. The award, which Pacific Northwest National Laboratory established in memory of Laboratory Fellow Ron Brodzinski, recognizes outstanding published scientific or engineering contributions in fields of national importance by individuals near the beginning of their professional careers.

  • Cyclone Nargis 2008

    30-year Trends that Encourage Bay of Bengal Cyclones

    The intensity of post-monsoon tropical cyclones in the Bay of Bengal has increased over the 30-year period from 1981-2010, found scientists at Pacific Northwest National Laboratory and the Atlanta Oceanographic and Meteorological Laboratory. The culprit? Trending increases in certain environmental conditions that brew up these storms: increased sea surface and upper ocean temperatures and atmospheric instability.

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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Fundamental & Computational Sciences