You need to be logged in to carry this out. If you don't have an account, feel free to create one. |
COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |
University of Cambridge > Talks.cam > BAS Atmosphere, Ice and Climate Seminars > Exploring sources of gravity waves in the southern winter stratosphere using 3-D satellite observations and backwards ray-tracing
Exploring sources of gravity waves in the southern winter stratosphere using 3-D satellite observations and backwards ray-tracingAdd to your list(s) Download to your calendar using vCal
If you have a question about this talk, please contact Thomas Caton Harrison. Atmospheric gravity waves have a wide a variety of sources such as wind flow over mountains, convection, jet stream instabilities. However, most observations of gravity waves allow us to only make informed guesses of their sources using their location and spatial characteristics. Here we use stratospheric gravity waves from AIRS (Atmospheric InfraRed Sounder) and ray trace them back to their sources using GROGRAT (Gravity-wave Regional Or Global Ray Tracer). Our study focuses on the southern winter stratosphere, where some of the most intense stratospheric gravity wave activity is found. Here, questions remain about ‘missing momentum flux’ near 60 °S which is present in observations, but not in general circulation models. We use our backwards traced rays to investigate the lateral propagation of these waves, small island sources and the split between orographic and non-orographic waves. This work aims answer the question: “Where do gravity waves observed in the stratosphere come from?” This talk is part of the BAS Atmosphere, Ice and Climate Seminars series. This talk is included in these lists:Note that ex-directory lists are not shown. |
Other listsType the title of a new list here Galaxies Discussion Group Sainsbury Laboratory SeminarsOther talksRothschild Public Lecture- Refugee mathematicians from Nazi Germany with an emphasis on the U.K Enlightenment Scepticism and the Conditions for Political Stability Hh signalling and the anti-tumour immune response: biology and new treatment opportunities Optimizing the diffusion for sampling with overdamped Langevin dynamics Generalized Schrodinger bridges in stochastic thermodynamics Robust adaptation of integrator snippet sampling algorithms |