ESRL Global Systems Division

WRF-Chem in Nepal

During the week of June 1, 2014, scientists from NOAA/ERSL/Global Systems Division (GSD) and NCAR/Mesoscale and Microscale Meteorology Division served as invited instructors at a Weather Research and Forecast with Chemistry Modeling (WRF-Chem) Tutorial for scientists in the Hindu Kush Himalayan (HKH) Region. The six-day course, focusing on the use of WRF-Chem for air quality forecasting, was hosted at the International Centre for Integrated Mountain Development (ICIMOD) headquarters in Kathmandu, Nepal. Participants came from eight different countries with the majority being from Nepal and its neighboring states. Tutorial instruction focused upon not only the use of the numerical model but also the preparation of emission inventories for use in real time forecasting.

While in Nepal, the instructors were invited to present some of their latest scientific findings at ICIMOD's Second Annual Regional Atmospheric Science workshop. This workshop took place in Pokhara, Nepal, on June 7 – 9, 2014, and brought together approximately 80 scientists who have conducted research on issues related to atmospheric pollution in the HKH region.

GSD's Assimilation and Modeling Branch is leading the development of a next-generation coupled weather/air quality numerical prediction system based upon the WRF model, called WRF-Chem. Gas-phase chemistry and aerosol processes are tightly coupled to meteorology within the WRF model structure. Since the model also includes the aerosol direct and indirect effect in addition to sophisticated microphysics packages, WRF-Chem can be used for process studies that are extremely relevant for global change predictions. WRF-Chem has a large international user base and, in addition to studying global change processes, is used to predict weather, dispersion, and air quality. ESRL/GSD currently runs inline chemistry versions for many of its other models as well, all with cycling of 3-d aerosol/chemistry variables.

Contact information
Name: Steven Peckham
Tel: 303-497-7978