A Review of Gravity Wave - Convection Interactions

Steven Koch*
NOAA/National Severe Storms Laboratory

This talk will present a succinct history of studies treating the topic of gravity wave initiation of continental, deep moist convection, and feedback effects of organized convection on the wave system. Beginning with the early studies of solitary waves of depression by Tepper that utilized primarily surface pressure perturbation fields, to the current use of sophisticated satellite and ground-based remote sensing systems such as infrared and microwave radiometers, radar wind profilers, and doppler wind lidars, the role of enhanced observations to improve the detection of the waves and gain an understanding of wave structure and dynamics is shown. The talk will also discuss the role of sophisticated mesoscale and convective-admitting numerical weather prediction (NWP) models in improving basic understanding and addressing the practical predictability of gravity waves having importance for high-impact weather. Comparisons between the NWP model representation of wave generation and vertical structure with special instrument system observations and with the predictions from basic theory will be shown. Both deep tropospheric, untrapped waves and lower-tropospheric, trapped wave systems (bores and solitons) will be discussed with regards to the detection, understanding, and prediction of these phenomena. The talk will end with a proposed systematic methodology for wave detection and prediction using current observing and modeling systems.



*Email: Steven.Koch@noaa.gov
*Preference: Invited