PPT-Mechanisms contributing to the Spring ozone maximum in the

by David Gray Scientific use Background ozone ozone present through natural or nonlocal sources currently ranges from 2045 ppb in North America Rising background ozone could mean nonattainment for much of North America. DEPLETION. What is Ozone?. Two different layers in the atmosphere:. . Troposphere. Stratosphere. . What is ozone layer?. Ozone layer is a thin, fragile shield that contains relatively high concentrations of ozone.. and verification of the connections between ozone depleting substances and the ozone hole. A.R. (Ravi) Ravishankara. NOAA, ESRL/Chemical Sciences Division. Boulder CO, USA. Co-Chair, SAP. Some . personal . Air Quality Division . Mark . Estes. a. , Shaena . Berlin. b. , Andrew . Langford. c. , Melody . Dong. d. , Jim . Smith. a. , Fernando . Mercado. a. , David . Parrish. c. Presented to AQAST Meeting, Rice University. Natalya Kramarova, Paul Newman, Eric Nash, PK Bhartia, Richard . McPeters. , Didier Rault, Colin Seftor, Gordon Labow. OMPS meeting, June 6, 2013. Objectives. Can OMPS . reasonably . represent the Antarctic ozone hole?. Venn Diagram. Compare/Contrast. GLOBAL WARMING. OZONE DEPLETION. Both harm the environment. Both caused by chemicals released by human activities. Caused by high . . levels of . CO. P. . J. Young. , V. . Naik. , J. . Brandt, R. Doherty, A. M. Fiore, . A . Gaudel. , C. . . Geels. , M. I. . Hegglin. , L. Hu, U. . Im. , R. Kumar, M. Lin, A. . Luhar. , L. Murray, . J. . Neu. , D. . . P. Young, V. . Naik. , J. . Brandt, R. Doherty, A. M. Fiore, C. . Geels. , M. I. . Hegglin. , L. Hu, U. . Im. , R. Kumar, M. Lin, A. . Luhar. , L. Murray, D. A. Parrish, D. Plummer, H. E. . Rieder. , J. Rodriguez, J. L. Schnell, M. Schultz, S. . EVSC 1300. Spring 2016. Average. vertical. temperature. structure. of atmosphere. Average. vertical. temperature. structure. of atmosphere. NO. x. + VOCs + sunlight .  . Ground-level ozone. Figure18-9 p528. Updates from . PSU/GSFC/UMD. : Comparisons with . Observations. Anne Thompson, NASA-GSFC. 5 Jan 2015. Nikolay . Balashov (PhD Candidate) . & Greg Garner (Prof G. Young). All at PSU. Background & Principles of PSU/GSFC/UMD AQ Forecasting with Value of Information. Ja. -Ho Koo. EAS 6792 Term project. Introduction. Tropospheric. ozone depletion event (ODE) usually happens in spring,. . polar. . region.. ODE looks strongly related to the amount of atmospheric bromine chemistry based on the heterogeneous reaction (Barrie et al., 1988). f. actors to threats. Phase II. Systemic risk and vulnerability analysis. Step 7. © Pierre . Ibisch. 2014. Credits and conditions of use. 7. Identify contributing factors to threats. 2. You are free to share this presentation and adapt it for your use under the following conditions: . The . ozone layer or ozone shield . is a region of Earth's stratosphere that absorbs most of the Sun's UV radiation. . It contains high concentration of ozone (O3).. It is a pale blue gas at room temperature.. Jae N. Lee. 1,2 . and Dong L. Wu. 2. . 1. Joint Center for Earth Systems Technology, University of Maryland, Baltimore County, 2. NASA Goddard Space Flight Center. Acknowledgments : NASA Sun Climate Research. N. 2. O . under the. Vienna Convention for the Protection of the Ozone Layer and/or . Montreal Protocol on Substances that Deplete the Ozone Layer. Peter M. Grabiel. Institute for Governance & Sustainable Development (IGSD).