PPT-Multisensor Investigation of Deep Convection

AGU San Francisco 5 December 2012 Robert A Houze Jr amp Jian Yuan University of Washington Mesoscale Convective Systems MCSs Large areas of cold top Example outbreak of MCSs. By Ross . Nuechterlein. Convection. Convection.  is the movement of molecules within fluids and is one of the major modes of heat and mass transfer in liquids and gas.. Buoyancy . Buoyancy.  is an upward acting force exerted by a fluid , that opposes an object's weight.. Israel Jirak, Steve Weiss, and Chris . Melick. . Storm Prediction Center. WoF Workshop, April 3, 2014. Convection-allowing ensembles (. ~. 4-km grid spacing) can provide important information to forecasters regarding the uncertainty of storm intensity, mode, location, timing, etc. on the outlook to watch scale. David M. Romps. Workshop on Large-Scale Circulations. in Moist Convecting Atmospheres. October. 17, 2009. The bulk. -plume equations. , when used to diagnose large-eddy simulations, underestimate convective entrainment.. Brian Mapes, U of Miami. with. Baohua Chen (UM). Richard Neale (NCAR). Emily Riley (UM). Organ-ization. From Greek organon. about . instrumentality . or . working order. "Organized" convection. (weak) Something is making it patterned . Brian . Mapes. RSMAS. , University of Miami. Harvard, Oct 17 2009. (personal) historical moment. Two very old ideas. , . fiiinally. coming to fruition?. 1995: study convection sensitivities. inhibition vs. bulk instability (CAPE) controls. boundary . layer and . orographic. circulation . with . locally-triggered deep convection around the Santa Catalina Mountains in Arizona. Bart Geerts . (geerts@uwyo.edu) . . J. &. related issues. P. . Mukhopadhyay. Climate v. Numerical Weather Prediction. NWP: . Initial state is CRITICAL. Don’t really care about whole PDF, just probable phase space. conservation of mass/energy to match observed state. Free Convection (or Natural Convection). fluid motion . induced by . buoyancy forces. buoyancy forces . arise when there are . density gradients . in a fluid and a . body force. . proportional to density arises . Robert A. Houze, Jr.. University of Washington. with: K. L. Rasmussen, M. D. Zuluaga, and S. R. Brodzik. Presented at:. AGU Fall Meeting, San Francisco, 18 December 2015 . The TRMM Satellite. 1997-2014. Keller and . Tackley. , 2009, Towards self-consistent modeling of the . martian. dichotomy: The influence of one-ridge convection on crustal thickness distribution, Icarus 202, 429-443. . The . dominant feature of the crustal thickness distribution obtained from one-ridge convection in the mantle is a characteristic, roughly elliptical shape that shows a striking first- order similarity to the shape of the . 1. Aim : . develop an appreciation for the physical phenomena associated with internal flow and to obtain convection coefficients. Contents:. Entrance region . vs. fully developed region. Hydrodynamic effect consideration. of the UM in different parts of the world.. Humphrey Lean, Kirsty Hanley, Stuart Webster, Will Keat, Thorwald Stein, Todd Lane, Martin Jucker, Elizabeth Kendon and Giorgia Fosser. Met Office has run 1.5km UK version of Unified Model for about 10 years (UKV). . Why is it windy at the seaside?. Cold air sinks. Where is the freezer compartment put in a fridge?. Freezer compartment. It is put at the top, because cool air sinks, so it cools the food on the way down.. Beihang University, China. Key points. . The toroidal fields are produced in the bulk of the convection zone by the latitudinal shear. The tachocline is unimportant in our model. . Zebin Zhang & .