PPT-Radiative-Convective Model

Overview of Model Convection The convection scheme of Emanuel and Živkovic Rothman 1999 uses a buoyancy sorting algorithm and represents an entire spectrum of convective clouds from shallow nonprecipitating cumulus to deep precipitating cumulonimbus Precipitation reevaporates and drives an unsaturated downdraft that imports enthalpy and moisture into the subcloud layer Reevaporation of cloud water resulting from entrainment of dry air drives penetrative downdrafts within the clouds The cloud base mass flux is continuously relaxed so as to produce near neutrality of a parcel lifted dry adiabatically and then moist adiabatically to the first level above its lifted condensation level This maintains a form of boundary layer . R adiative - , Page 1 Radiative and Radiative - Convecti ve Equilibrium Introduction The energy balance of the Earth’ ytem i quite intricate with numerou Hannah C. Barnes. Robert A. Houze, Jr.. University of Washington. Presentation by H. Barnes at Department of Meteorology, . The Pennsylvania . State University, State . Callege. , PA, August 15, 2014. tropical cyclones. Robert Fovell and . Yizhe. Peggy Bu. University of California, Los Angeles. rfovell@ucla.edu. 1. Thanks to. : . Greg . Thompson, NCAR/. DTC; Ligia . Bernardet. and Mrinal . Biswas. SPECIFICS. OF STUDY. FINDINGS. Kohler,. 193. 6 (“The nucleus in and the growth of hygroscopic droplets”). Evaporate. 2kg of hoar-frost and . determined . Cl. content. ; used optics to . measure droplet size. ATR-42 and Falcon 20 SW . and LW . radiation . profiles above the ENEA Lampedusa supersite during the . ChArMEx. /ADRIMED SOP1a campaign. Daniela Meloni. Laboratory for Earth Observations and Analyses, ENEA. the . Radiative Effects . of . Black Carbon Internal Mixing. Charles Li. Group Meeting Presentation. October 1, 2014. Group Meeting 10/1/14. 1. Black Carbon (BC) Direct Radiative Forcing:. +0.71 W m. radiative. forcing of black carbon aerosol: constraints from pole-to-pole (HIPPO) observations across the Pacific. Qiaoqiao. Wang, Daniel J. Jacob, J. Ryan . Spackman. , Anne E. . Perring. , Joshua P. Schwarz, . imbalance . 1985-2012. Richard P. Allan. , . Chunlei. . Liu (University of Reading/NCAS Climate); Norman Loeb (NASA Langley); Matt Palmer (Met Office). r.p.allan@reading.ac.uk. @. rpallanuk. GEWEX 7. &. 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. DYNAMO/CINDY. 2011. C.-H. . Sui, . Yi-An Chen, . Shu-Yu . Hou. National Taiwan University. NSA. SSA. (73.1E,0.7S). (. 72E,-7.3N. ). (73.5E,4.2N). (. 79E,6.9N. ). (. 80.5E,0.07N. ). (. 80.5E,-8N. ). Male. Christopher . Melhauser. and . Fuqing. Zhang. The Pennsylvania State University. Department of Meteorology. Group Meeting – April 11, 2013. Focus. How does the diurnal radiation cycle impact the . Kerry Emanuel. Massachusetts Institute of Technology. Several Possibly Inter-related Enigmas of the Tropical Atmosphere. Why does moist convection often cluster?. What determines the number of tropical cyclones on the planet?. Kengo. . Matsubayashi. Japan Meteorological Agency. The Met Office. Outline. Motivation. Observation and evaluation method. Evaluation result. Summary. In many convection schemes, water substances are empirically modelled.. role of precipitation-driven cold pools in deep convective cloud development over . the warm tropical . Ocean.. Approach. Track cold . pools and clouds developed near their boundaries using high-resolution regional model simulation.