PPT-Stratospheric

Geoengineering by Injection of Solid Particles Risks and Benefits Preliminary Assessment of Al 2 O 3 Geoengineering Microphysics Simplified RF Ozone impacts No climate impacts or feedbacks. The most reactive of these gases are chlorine monoxide ClO bromine monoxide BrO and chlorine and bromine atoms Cl and Br These gases participate in three prin cipal reaction cycles that destroy ozone Cycle 1 Ozone destruction Cycle 1 is illustrated 6 20 Questions 2010 Update Section I OZONE IN OUR ATMOSPHERE Stratospheric ozone Stratospheric ozone is formed naturally by chemical reactions involving solar ultraviolet radiation sunlight and oxygen molecules 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 Q.27 T and early spring in the Antarctic is known as the “ozone hole” (see Q11). e ozone hole rst appeared over Antarc - tica because atmospheric and chemical conditions unique to this Carl Mears. Remote Sensing Systems. Why do we care about . the diurnal cycle?. Most polar orbiting satellites drift in local measurement time – need estimate of diurnal cycle to adjust for this.. Model validation studies. 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. by . David Gray. Scientific use. Background ozone. ozone present through natural or nonlocal sources. currently ranges from 20-45 ppb in North . America. Rising background ozone could mean non-attainment for much of North America. Do we have to? . Sell . Verb. 1) Give or hand over something in exchange for money. 2) Persuade someone of the merits of something. How to Sell Anything to Anybody . Emma Snider . 1) Make it about them . 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. robock@envsci.rutgers.edu. http://envsci.rutgers.edu/~robock. Alan Robock. Department of Environmental Sciences. Rutgers University, New Brunswick, New Jersey. Desire for improved well-being. Consumption of goods and services. 2. . profiles among . ground-based . zenith sky DOAS, . SCIAMACHY limb . measurements and . SAOZ balloon-measurements . over Kiruna, . Sweden. Myojeong Gu. 1. , Carl-Fredrick Enell. 2. , Florence Goutail. climate. change . in the CMIP5 models. Alexey Karpechko &. Elisa Manzini. 22.4.2013. 2. Contributions . from . many . people, . most importantly:. James Anstey,. Seok. -Woo . Son. ,. Paolo Davini,.