ESRL/PSD Seminar Series
Amplification of precipitation extremes with warming.
CNRS/ Ecole Polytechnique, Palaiseau, France
Simulations of tropical precipitation extremes with current coarse-resolution global climate models are unreliable. Therefore progress on the problem of changing tropical precipitation extremes with warming must rely on either theory, observations, or simulations that resolve the convective-scale processes. In this project, we investigate how precipitation extremes respond to an increase in sea surface temperatures in simulations that resolve the convective-scale processes. A scaling is introduced to investigate the behavior of precipitation extremes, and how it relates to the behavior of thermodynamic and dynamic variables. We also examine the impact of convective organization on our results. It is well known that convection can organize on a wide range of scales. The ubiquity of convective organization above tropical oceans has been pointed out in several observational studies, and it can strongly impact large-scale properties.
Tuesday, Oct 29
Seminar Coordinator: Barbara.S.Herrli@noaa.gov
SECURITY: If you are coming from outside the NOAA campus, you must stop at the Visitor Center to obtain a vistor badge. Please allow 10 extra minutes for this procedure. If you are a foreign national coming from outside the NOAA campus, please email the seminar coordinator at least 48 hours prior to the seminar to provide information required for security purposes.