Environmental impacts on tropical cyclone structure and intensity diagnosed from airborne Doppler radar composites
To assess the impacts of motion and shear on the core-region asymmetry, we first generate sub-composites based on the relative orientation of the motion and shear vectors using a method similar to Corbosiero and Molinari (2003). We revisit their results using the full kinematic and reflectivity fields offered by the airborne Doppler radar database of at least 77 distinct intensive observation periods. The composited 3-d shear-relative vortex structure is then compared with that in recent theoretical and numerical treatments, and relevant observation-based case studies. Plans to use the composite analysis in the context of HFIP diagnostic efforts and future testing of shear-induced intensity change theories will also be discussed as time permits.