ESRL Global Systems Division

ESRL Collaboration on Volcanic Ash Dispersion Model

Georg Grell of NOAA's Earth System Research Laboratory and researcher for the Cooperative Institute for Research in Environmental Sciences in the Global Systems Division, has been invited to travel to the University of Fairbanks in Alaska this week (May 3 - 12). There he will continue a collaboration begun last year on two projects. In addition to ice fog modeling, Georg will work with leading experts in the field of volcanic ash dispersion and fallout. They are enhancing their preliminary versions of ash fall parameterization in the WRF-Chem and FIM-Chem models that were recently run on ash dispersion from Iceland's disruptive volcano Eyjafjallajökull. These studies will result in improving the accuracy and timeliness of ash dispersion for future volcanic eruptions.

The Weather Research and Forecasting (WRF) is a next-generation mesoscale numerical weather prediction system that provides an operational forecasting model that is flexible and efficient computationally. Additionally, it offers many advances in physics, numerics, and data assimilation contributed by the research community. In WRF-Chem, gas-phase chemistry and aerosol processes are tightly coupled to meteorology within the WRF model structure. It is used for process studies that are extremely relevant for global change predictions, as well as weather, dispersion, and air quality predictions.

Contact information
Name: Georg Grell
Tel: 303-497-6924