PPT-Scales of Convective Activity in the MJO

Robert A Houze Jr With contributions from S Powell M Zuluaga H Barnes A Rowe AGU Annual Meeting San Francisco 11 December 2013 The MJO scale 3060 days TOGA COARE West Pacific. Definition The MJO is an intraseasonal fluctua tion or wave occurring in the glob al tropics The MJO is responsible for the majority of weather variability in these regi ons and results in variations in several important atmospheric and oceanic par Fig. 3: As in Fig. 2, but at ten days after convective initiation.. Preferred ENSO Phase within Each Composite. Fig. 1: Histogram of ONI (°C) for (a) real MJOs and (b) failed MJOs. The sample size, mean, and standard deviation of each subset are provided in the top left corner of each histogram.. Webinar . Series. Dynamics of the Madden-Julian Oscillation Field Campaign. Climate Variability. . & Predictability. Shipboard Measurements of Aerosol Chemical, Physical, and Optical Properties during . SO442 Lecture 9/30/2013. B. Barrett. http://blogs.wpri.com/2013/08/21/why-hurricane-season-may-start-to-pick-up/. . First, atmospheric oscillations. The weather we notice here in Annapolis today is really the combination of many atmospheric oscillations. Challenges for the Next Decades. NASA Earth Science Division Workshop, NASA/Ames, 6-8 May 2014. Robert A. Houze, Jr.. University of Washington. Fair weather cumulus. Cumulus congestus. Cumulonimbus. Single cell. Weather Systems – Fall 2015. Outline:. a. Stability Indices. b. Wind Shear and . Helicity. c. How to relate to predicted / observed convective weather. Convective Parameters. Weather Systems – Fall 2015. vs. . Remote effect. Sourav Taraphdar. 1. Collaborators. :. 1. . Fuqing. Zhang, . Yonghui. . Weng. , Michael (Yue) Ying. 2. . Shuguang. Wang. 3. Juan . Fang. 1. Department of Meteorology, The Pennsylvania State University, . &. 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. 8:00am . Talks, nominally 15 minutes, with time for questions and discussion. ..  . Jim Moum / BAMS outline. . Aurélie. Moulin / diurnal warm layer. Bill Smyth. Alan . Brewer.  . 9. :30 . coffee. Oscillations . . 伴隨季內震盪的. 雲. 水. 過程. 分析. Chung-. Hsiung. Sui . Dept. of Atmospheric Sciences . National Taiwan . University. 隋中興 洪竟書. . 曾開智. . 台灣大學大氣科學系. Adames. , A. F., J. M. Wallace, and J. M. Monteiro, 2016: Seasonality of the structure and propagation characteristics of the MJO. . J. Atmos. Sci.. , . 73. , 3511–3526.. Introduction. the convective centers in the MJO shift seasonally toward the summer hemisphere, following the belt of highest sea surface temperature (SST). . SO 442 . – . Tropical Meteorology. Space and time-scales of dynamical atmospheric processes. SOURCE: UCAR. Climate. : PDO. Years. : ENSO. Seasons:. Monsoons. Months/Weeks:. MJO. Atmospheric Scales of Motion. Jeremiah Brown and Ralph F. Milliff. NWRA, Colorado Research Associates (CoRA) Division. Boulder, CO USA. IOVWST Barcelona, May 2010. Multi-Platform Analyses of MJO Convection on Sub-Daily Timescales. 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..