Tomás Sherwen (a) *, Mathew Evans (a,b), Lucy Carpenter (a) Rainer Volkamer (c), Theodore Koenig (c), Barbara Dix (c), Carlos Ordonez (d), Alfonso Saiz-Lopez.

Slides:

Advertisements

Similar presentations

Atmospheric chemistry

Advertisements

Fires, Atmospheric Composition and Earth System Feedbacks Oliver Wild Centre for Atmospheric Science Cambridge JULES Science Meeting, Exeter, June.

J. E. Williams, ACCRI, The Impact of ACARE reductions in Future Aircraft NOx Emissions on the Composition and Oxidizing Capacity of the Troposphere.

Geophysical Fluid Dynamics Laboratory Review June 30 - July 2, 2009 Geophysical Fluid Dynamics Laboratory Review June 30 - July 2, 2009.

Emissions From The Oceans To The Atmosphere Deposition From The Atmosphere To The Oceans And The Interactions Between Them Tim Jickells Laboratory for.

The Stratospheric Chemistry and The Ozone Layer

The Atmosphere: Oxidizing Medium In Global Biogeochemical Cycles EARTH SURFACE Emission Reduced gas Oxidized gas/ aerosol Oxidation Uptake Reduction.

METO 621 Lesson 24. The Troposphere In the Stratosphere we had high energy photons so that oxygen atoms and ozone dominated the chemistry. In the troposphere.

THE ATMOSPHERE: OXIDIZING MEDIUM IN GLOBAL BIOGEOCHEMICAL CYCLES

CLARIS WP4.3 : Continental-scale air Pollution in South America.

SETTING THE STAGE FOR: BIOSPHERE, CHEMISTRY, CLIMATE INTERACTIONS.

The robustness of the source receptor relationships used in GAINS Hilde Fagerli, EMEP/MSC-W EMEP/MSC-W.

This Week—Tropospheric Chemistry READING: Chapter 11 of text Tropospheric Chemistry Data Set Analysis.

STRATOSPHERIC CHEMISTRY. TOPICS FOR TODAY 1.Review of stratospheric chemistry 2.Recent trends in stratospheric ozone and forcing 3.How will stratospheric.

1 Motivation 2 Instrumentation and Retrieval 3 CONTRAST Profile Comparison Stratospheric case study 4 TORERO NH/SH gradients 5 Summary and conclusions.

1 Br radicals in the tropical troposphere: a GEOS-Chem perspective Johan Schmidt Harvard University CONTRAST/ATTREX/CAST STM (October 22 nd ) Thanks to:

Tomás Sherwen, Mat Evans, Lucy Carpenter Wolfson Atmospheric Chemistry Laboratories, University of York, UK CAST Science team. Rainer Volkamer (c), Theodore.

Sensitivity of U.S. Surface Ozone to Isoprene Emissions & Chemistry: An Application of the 1°x1 ° North American Nested GEOS-CHEM Model GEOS-CHEM Model.

An Overview Of Arctic Haze And Surface Ozone Depletion At Polar Sunrise Leonard A. Barrie Pacific Northwest National Laboratory

CAM-chem model evaluation of the emissions and distributions of VSLS using TOGA VOC observations from CONTRAST and TORERO (in the lower and free troposphere.

Atmospheric chemistry Day 4 Air pollution Regional ozone formation.

Simple Chemical modeling of ozone sensitivity

Xuexi Tie Xu Tang,Fuhai Geng, and Chunsheng Zhao Shanghai Meteorological Bureau Atmospheric Chemistry Division/NCAR Peking University Understand.

Konrad Cunningham, Joel Arberman, Nadine Bell, Susan Harder, Drew Schindell, Gavin Schmidt The Effects of Climate and Emission Changes on Surface Sulfate.

Introduction to Atmospheric Chemistry Measurements-I John Ortega National Center for Atmospheric Research Boulder, CO, USA National Center for Atmospheric.

Deriving vertical profiles of free tropospheric trace gases from ground based measurements: Implications for oxidation of atmospheric mercury Sean Coburn.

1)Division of Marine and Atmospheric Chemistry, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, Florida, USA 2)Atmospheric.

1 UIUC ATMOS 397G Biogeochemical Cycles and Global Change Lecture 5: Atmospheric Structure / Earth System Don Wuebbles Department of Atmospheric Sciences.

TROPOSPHERIC OZONE AND OXIDANT CHEMISTRY Troposphere Stratosphere: 90% of total The many faces of atmospheric ozone: In stratosphere: UV shield In middle/upper.

Criteria of a good research field Intellectually challenging Significant contributions to the society Provides jobs.

ATMOSPHERIC CHEMISTRY APPLICATIONS WORKSHOP January 2004, ESTEC Albert P H Goede Objective of the Workshop User Consultation on present and future.

The preservation of long-range transported nitrate in snow at Summit, Greenland Jack Dibb 1, Meredith Hastings 2, Dorothy Fibiger 3*, D. Chen 4, L. Gregory.

4/20/2006Ga Tech - EAS Air Chemistry Group Presentation 1 A Hydrogen Economy’s Potential Environmental Impacts Chun Zhao Evan Cobb.

Recent Trend of Stratospheric Water Vapor and Its Impacts Steve Rieck, Ning Shen, Gill-Ran Jeong EAS 6410 Team Project Apr

GEOS-CHEM users’ meeting Harvard University Gabriele Curci6/2/2003 Stratospheric chemistry and SMVGEAR II in GEOS-CHEM model Gabriele Curci University.

Model Simulation of tropospheric BrO Xin Yang, J. Pyle and R. Cox Center for Atmospheric Science University of Cambridge 7-9 Oct Frascati, Italy.

Iodine Chemistry And It’s Role In Ozone Depletion PRESENTED BY: Farhana Yasmin.

INTERCONTINENTAL TRANSPORT OF OZONE AND ITS SEASONAL VARIATIONS IN EUROPE Dick Derwent rdscientific 2 nd ICAP Workshop Chapel Hill, North Carolina October.

TEMIS User Workshop, Frascati, Italy October 8-9, 2007 Formaldehyde application Derivation of updated pyrogenic and biogenic hydrocarbon emissions over.

Oxidant chemistry in the tropical troposphere: role of oxygenated VOCs and halogens, and implications for mercury Daniel J. Jacob with Kevin J. Wecht,

A modelling study on trends and variability of the tropospheric chemical composition over the last 40 years S.Rast(1), M.G.Schultz(2) (1) Max Planck Institute.

Sensitivity of modeled vertical column NO 2, HCHO, glyoxal and O 3 to emission inventories in the Los Angeles Basin Si-Wan Kim NOAA/ESRL/CSD and CIRES,

Use of GMI to Study Tropospheric and Stratospheric Bromine Budgets Debra Weisenstein AER, Inc. GMI Science Team Meeting March 2008.

Halogen Chemistry at NCAR D. Kinnison, J.Orlando, J-F Lamarque, S. Schaffler, G. Brasseur, R. Garcia, et al… NCAR Alfonso Saiz-Lopez and S. Sander JPL.

Review: Constraining global isoprene emissions with GOME formaldehyde column measurements Shim et al. Luz Teresa Padró Wei-Chun Hsieh Zhijun Zhao.

David Stevenson 1, Colin Johnson 2, Ellie Highwood 3, Bill Collins 2, & Dick Derwent 2 1 School of GeoSciences, University of Edinburgh 2 The Met Office.

Simulating the impacts of Large Scale Insect- and Disease- Driven Tree Mortality on atmospheric chemistry Colette Heald, Sam Silva Department of Civil.

AN ATMOSPHERIC CHEMIST’S VIEW OF THE WORLD FiresLand biosphere Human activity Lightning Ocean physics chemistry biology.

Effect of BrO Mixing Height to Ozone Depletion Events Sunny Choi.

The Double Dividend of Methane Control Arlene M. Fiore IIASA, Laxenburg, Austria January 28, 2003 ANIMALS 90 LANDFILLS 50 GAS 60 COAL 40 RICE 85 TERMITES.

SciDAC Fast Chemical Mechanism LLNL Philip Cameron-Smith Peter Connell Cathy Chuang (John Taylor) Keith Grant (Doug Rotman) NCARJean-Francois Lamarque.

OZONE DEPLETION AT POLAR SUNRISE SOURCES AND MECHANISM OF REACTIVE HALOGEN SPECIES EAS6410 Jide & Rita.

Picture: METEOSAT Oct 2000 Tropospheric O 3 budget of the South Atlantic region B. Sauvage, R. V. Martin, A. van Donkelaar, I. Folkins, X.Liu, P. Palmer,

OsloCTM2  3D global chemical transport model  Standard tropospheric chemistry/stratospheric chemistry or both. Gas phase chemistry + essential heteorogenous.

NO X AND NO Y IN THE TROPICAL MARINE BOUNDARY LAYER C. Reed, M. J. Evans, J. D. Lee, L. J. Carpenter, K. A. Read, L. Mendes.

Office of Research and Development National Exposure Research Laboratory, Atmospheric Modeling and Analysis Division Office of Research and Development.

Atmospheric chemistry Applications Workshop Conclusions/Impressions and Actions.

Yuqiang Zhang1, Owen R, Cooper2,3, J. Jason West1

Interaction between sulfur and reactive bromine in clouds

ATS 621 Fall 2012 Lecture 11.

Atmospheric Processes and Composition:

Atmospheric modelling of the Laki eruption

A model of sea salt aerosol for Cape Grim Preliminary investigations

Impact of Solar and Sulfate Geoengineering on Surface Ozone

Chemistry-Climate Modelling: Impacts of climate change on tropospheric chemical composition David Stevenson Institute of Atmospheric and Environmental.

大气圈地球化学及其环境效益.

Global atmospheric changes and future impacts on regional air quality

OZONE PRODUCTION IN TROPOSPHERE

Asian outflow and chemical evolution of ozone and nitrogen oxides over the Pacific Mathew Evans, Daniel Jacob, Harvard Group, TRACE-P Science Team et al.

HO2 O3 NO OH NO2 hv Pyro-convection NOx, RH, CO O3 Visibility

Presentation transcript:

Tomás Sherwen (a) *, Mathew Evans (a,b), Lucy Carpenter (a) Rainer Volkamer (c), Theodore Koenig (c), Barbara Dix (c), Carlos Ordonez (d), Alfonso Saiz-Lopez (e) Iodine’s Impact on Tropospheric Oxidants 1 a Wolfson Atmospheric Chemistry Laboratory (WACL), Department of Chemistry, University of York, UK b National Centre for Atmospheric Science (NCAS), Department of Chemistry, University of York, UK c Cooperative Institute for Research in Environmental Sciences (CIRES), Department of Chemistry and Biochemistry, University of Colorado, CO, USA d Met Office, FitzRoy Road, Exeter, UK e Atmospheric Chemistry and Climate Group (AC2), Instituto de Química Física Rocasolano, CSIC, Madrid, Spain

Halogens and O 3 Tropospheric O 3  Sources NO x / VOCs  Sinks Depositional Chemical (H 2 O/ hv / HOx …+ halogens) Troposphere Halogens  More labile source species  Cl, Br, I  History 2 Image: WHO, 2010

Aerosols Schematic HOI I2I2 I - CH 3 ICH 2 I 2 CH 2 IBrCH 2 IClIOII2OxI2Ox OIO IONO 2 HOI O 3 Deposition I2I2 IONO HI MicroalgaeMacroalgae I Dry Deposition Wet Deposition

Modelled Iodine Partitioning 4 Emissions Organic 0.6 Tg Organic 0.6 Tg (CH 3 I, CH 2 IX) Inorganic 2.4 Tg Inorganic 2.4 Tg (HOI, I 2 ) % pptv

Inorganic Observations 5

O 3 Decrease 6

O 3 loss by Route 7

OH Increase 8 OH O3O3 IO +HO 2 OH O3O3 IO +HO 2

O 3 for better or for worse - Daily change from maximum - Normalised to mean - Tropical Atlantic site - (Cape Verde) 9

Pollution Feedback Net O 3 loss ( photolysis driven) Interaction with NOx 10

Summary O 3, HO 2 concentrations  with halogens OH  with iodine 11 Tomás Sherwen ( ) Scenario O 3 Burden ( Tg ) [OH] mean ( 1x10 5 molec. cm -3 ) v9-2 (no Bromine) v9-2 (inc. Bromine) % diff from “no halogens” Iodine % diff from “no halogens” % diff from v ( ) 1.8 ( ) ( net: OH  with halogens )

Extra Slide 1 - Sondes 12

Extra Slide 2 - % O 3 zonal change 13

Extra Slide 3 - % O 3 spatial change 14

Extra Slide 4 - % O 3 column change 15

Extra Slide 5 - % O 3 EU spatial change 16

OH O3O3 IO +HO 2 OH O3O3 IO +HO 2 Extra Slide 6 - OH delta explanation