Hot, Humid Extremes Linked More to Moisture than Dry Heat
This study explores the relative role of temperature and humidity in extreme wet-bulb events and spurs further research into how these factors may change the frequency and intensity of life-threatening events in the future.
Seasonality Changes of Extreme Precipitation Over California Under Warming
In this study, PNNL researchers identified the seasonality changes in extreme precipitation over California under warming.
The Gathering Storm: Clouds Determine Drought or Drowning
University of Maryland, NASA Goddard Space Flight Center, and PNNL scientists explored how radiation-cloud-convection-circulation interactions (RC3I) affect the Intertropical Convergence Zone (ITCZ) and circulation at the global scale.
Improving Assessments of Reduced-Precision Calculations
A study by researchers at Pacific Northwest National Laboratory and Lawrence Livermore National Laboratory demonstrates an objective test method for assessing the correctness of reduced‐precision calculations.
The Intrinsic Skew Towards Cooling of Earth’s Climate
A study led by scientists at PNNL points to a new frontier for understanding the coupled climate system from the perspective of a nonlinear dynamical system.
Atmospheric Rivers Trigger Heavy Snowmelt in the Western United States
By quantifying the contribution of snowpack to runoff and extreme flooding in mountainous regions in the western United States, PNNL researchers provided a unified view of the interactions between snowpack and precipitation.
Rainfall Characteristics over the Central U.S. Influence Agriculture and Flood Risk
Mesoscale convective systems produce more intense rainfall than warm-season rain in this region.
New Modeling Improves Precipitation Simulation in Mountains High and Low
Downscaling methods improve representation of terrain effects on precipitation for earth system models.
Emulating Indices of Extreme Temperature and Precipitation with Computationally Efficient Algorithms
Emulators—algorithms that fill data gaps—are traditionally used to project average temperatures and precipitation. This work shows that efficient emulators can substitute for costly simulations over a wide range of extreme indices.
Overcoming the Bystander Effect in Chemical Ethics
A PNNL developed e-training helps chemists internalize the Global Chemical Code of Ethics' ideals and practice speaking up when others don't.