Predicting Warm Season Precipitation
PNNL and University of Arizona researchers evaluated the performance of the Weather Research and Forecasting (WRF) model in simulating precipitation under different weather patterns.
A New Perspective on the Asian Summer Monsoon
PNNL researchers used a new method for fingerprinting the sources of rainfall changes in tropical circulations. This new method was applied to the Asian Summer Monsoon (ASM) in DOE’s Energy Exascale Earth System Model.
New Earth System Module Better Represents Temperature Changes in Reservoirs
By using the new reservoir storage-area depth dataset, PNNL researchers were able to improve surface temperature simulation for ~70% of validated reservoirs compared to using simplified reservoir geometry as in previously available models.
Rapidly Exploring Earth System Model Temperature and Precipitation Uncertainty
Researchers who explore the interactions between human and natural systems will now have the ability to generate thousands of scenarios that can include different kinds of extreme events to study.
Improved Model Explores Impacts of Future Surprises on Electric Power Investments and Operations
PNNL researchers explored the impacts of short-term shocks on both long-term electric capacity investment and on sub-annual power system operations.
Automated Identification of Cloud Types at the ARM Southern Great Plains Site
A team of researchers, including PNNL scientists, used 13 years of data to develop an automated algorithm that identifies seven different cloud types at the Atmospheric Radiation Measurement (ARM) site in the U.S. Southern Great Plains.
Marine Test Sites
PNNL has federal authorizations and permits for research activities at two locations in the Strait of Juan de Fuca. These sites offer a range of research conditions.
Misrepresented Moisture Convergence Profiles Contribute to the Climate Model “Double ITCZ” Bias
A newly developed diagnostic framework helps explain an origin of the persistent “double ITCZ” error in many climate models.
Meteorological Conditions Influence the Size and Occurrence of California Wildfires
The majority of California wildfires from 1984-2017 occurred on hot-dry days, with meteorological conditions contributing to their sizes and changes.