Hybrid Isentropic Coordinate Modeling at the University of Wisconsin - Madison
Emphasis will be on results from the UW global hybrid model illustrating the excellent transport characteristics of isentropic coordinate models and demonstrating the capabilities of hybrid isentropic coordinate models for both numerical weather prediction and climate simulation. Results from the current application of the UW global hybrid model will also be presented. The UW hybrid isentropic coordinate model comprises the meteorological/transport component of the Real-time Air Quality Modeling System (RAQMS). RAQMS, a global meteorological and chemical modeling system, is run daily at the UW assimilating remote and in-situ observations of atmospheric chemical composition and providing global five day chemical and aerosol forecasts on a 1x1 degree grid. Spaced-based observations of column ozone, 3-d distributions of stratospheric ozone and aerosol optical depth are currently assimilated in RAQMS. RAQMS forecasts have frequently been used to provide flight planning support for scientific field missions, and by other research groups as initial conditions and lateral boundary conditions.