PPT-The Stratospheric Ozone Problem

First what is the ozone problem About 2 billion years ago Life on Earth was entirely singlecelled organisms living in the oceans when one type of bacteria Cyano began emitting Oxygen to the atmosphere . Stratospheric ozone: the natural cycle Produced in stratosphere by dissociation of oxygen atoms exposed to short-wave radiation Reaction accounts for most of adsorption of ultraviolet sunlight () as w 3. variability over recent decades: Stratospheric intrusions. , Asian pollution, and . climate. Meiyun Lin . Presented at Air Quality Research Subcommittee Meeting, Feb-19-2015 . Acknowledgements: . Intercomparison. Project (. GeoMIP. ). Giovanni . Pitari. . V. Aquila, . S. . Tilmes. , . I. . Cionni. , N. De Luca, Di . Genova. , and D. . Iachetti. Participating Models. Source of . geoengineering. event. http://deq.state.wy.us/aqd/Exceptional%20Events/June_6_2012ThunderBasin/June_6_2012_SI_Package.pdf. 310K O3 from RAQMS/WRF-CHEM Simulation. 00Z 05/30 – 00Z 06/07, 2012. Stratosphere/tropospheric exchange processes within a quasi-stationary low pressure system over the Gulf of Alaska played a critical role in the SI event. the progression of the Ozone hole over the antarctic from 1970 to 1997.. Some effects on plant and animal tissue as UV radiation increases. decrease in agricultural yields and a decrease in overall forest productivity. 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?. Observations, processes, and impact on climate. Stefanie . Kremser. and Larry Thomason. with the help of MANY others…. SSiRC. Workshop 2016 – 25 April. Stratospheric Aerosol: The stuff that dreams are made of. quality. AQAST10. Research Triangle Park, NC. January 5. ,. . 2016. Arlene M. Fiore. 83520601 . Our Team. Air Quality Management Collaborators (Current year Individual Project):. Joe Pinto (EPA/NCEA), Pat . contributions . to the decadal . variations of stratospheric aerosol. Mian Chin. , NASA Goddard Space Flight Center. Plus:. Thomas . Diehl, . Qian. Tan, . Huisheng. . Bian. , John Burrows, . Nickolay. Workshop . 28 - 30th October 2013. Ray Wang & GT for hosting us. Tom Becher for support (SSiRC web-page). Kendra Nolley for on-site support. SPARC & WCRP for travel support. Thanks to. Ice-breaker: TODAY 6:15 pm. Measurements indicate high ozone concentrations in the Great Basin.. Back trajectory analysis and satellite remote sensing will be used to shed light on the causes.. Great Basin National Park: 39.005 N 114.216 W.. 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.. S. Weber. 1. , R. Ruhnke. 1. , P. Braesicke. 1. , C. Scharun. 1. 1. Institute of Meteorology . and Climate Research. Significance of stratospheric ozone (O. 3. ):. Plays a critical role in absorbing ultraviolet (UV) radiation emitted by the sun. 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).