WESTERN AFRICA MISSION (WAM): An AURA Collaborative Science Mission Planning Committee: D.J. Jacob, E.V. Browell, W.H. Brune, J.H. Crawford, J.A. Logan,

Slides:

Advertisements

Similar presentations

A. Wahner et al., GEO-workshop Fifteen Years of Routine Aircraft Observations - MOZAIC A. Wahner, A. Volz-Thomas Research Centre Jülich J.-P.

Advertisements

Aircraft GC 2006 ems GC Streets ems East Asian contrib Lightning contrib Aircraft GC 2006 ems GC Streets ems No Asian No Lightning Long-range transport.

Interpreting MLS Observations of the Variabilities of Tropical Upper Tropospheric O 3 and CO Chenxia Cai, Qinbin Li, Nathaniel Livesey and Jonathan Jiang.

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

Long-range transport of NO y and ozone from Asia Thomas Walker Dalhousie University 3 rd GEOS-Chem Users' Meeting April 13, 2007.

INITIAL COMPARISONS OF TES TROPOSPHERIC OZONE WITH GEOS-CHEM Lin Zhang, Daniel J. Jacob, Solene Turquety, Shiliang Wu, Qinbin Li (JPL)

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

Biogenic emissions from tropical ecosystems Michael Barkley & Paul Palmer University of Edinburgh.

WP4 Tropospheric composition Reeves, Coe, Heard, Lewis, Monks, Pyle In the case of WP4 the objectives have been subdivided so that individual groups (first-

GEOS-CHEM GLOBAL 3-D MODEL OF TROPOSPHERIC CHEMISTRY Assimilated NASA/DAO meteorological observations for o x1 o to 4 o x5 o horizontal resolution,

ATMOSPHERIC CHEMISTRY: FROM AIR POLLUTION TO GLOBAL CHANGE AND BACK Daniel J. Jacob.

NASA/GTE MISSIONS, TRAnsport and Chemical Evolution over the Pacific (TRACE-P) A two-aircraft GTE mission over the western Pacific in February-April.

CONTINENTAL OUTFLOW AND INTERCONTINENTAL TRANSPORT AT NORTHERN MIDLATITUDES (and a few UT/LS topics) Daniel J. Jacob Atmospheric Chemistry Modeling Group.

U N I V E R S I T Y O F W A S H I N G T O N S C H O O L O F N U R S I N G U N I V E R S I T Y O F W A S H I N G T O N DEPARTMENT OF ATMOSPHERIC SCIENCES.

FROM AIR POLLUTION TO GLOBAL CHANGE AND BACK: Towards an integrated international policy for air pollution and climate change Daniel J. Jacob Harvard University.

Mapping isoprene emissions from space Dylan Millet with

TOP-DOWN CONSTRAINTS ON REGIONAL CARBON FLUXES USING CO 2 :CO CORRELATIONS FROM AIRCRAFT DATA P. Suntharalingam, D. J. Jacob, Q. Li, P. Palmer, J. A. Logan,

FLIGHT PLANNING IN INTEX-A The DC-8 at MidAmerica airport.

Randall Martin Space-based Constraints on Emissions of Nitrogen Oxides With contributions from: Chris Sioris, Kelly Chance (Smithsonian Astrophysical Observatory)

WESTERN AFRICA MISSION (WAM): GTE/AURA Collaborative Science Planning Committee: D.J. Jacob, E.V. Browell, W.H. Brune, J.H. Crawford, J.A. Logan, H.B.

Studies of Emissions & Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC 4 RS) Brian Toon Department of Atmospheric and Oceanic.

Retrieval and Interpretation of Tropospheric Observations from GOME Randall Martin Daniel Jacob Paul Palmer Sushil Chandra Jerry Ziemke Mian Chin Kelly.

The effect of pyro-convective fires on the global troposphere: comparison of TOMCAT modelled fields with observations from ICARTT Sarah Monks Outline:

ANALYSIS OF TROPOSPHERIC OBSERVATIONS FROM GOME AND TOMS Randall Martin, Daniel Jacob, Jennifer Logan, Paul Palmer Harvard University Kelly Chance, Thomas.

TROPOSPHERIC CHEMISTRY: FROM AIR POLLUTION TO GLOBAL CHANGE AND BACK Daniel J. Jacob.

QUESTIONS 1. How does the thinning of the stratospheric ozone layer affect the source of OH in the troposphere? 2. Chemical production of ozone in the.

SATELLITE OBSERVATIONS OF ATMOSPHERIC CHEMISTRY Daniel J. Jacob.

Estimating background ozone in surface air over the United States with global 3-D models of tropospheric chemistry Description, Evaluation, and Results.

Using OMI HCHO to test biogenic and anthropogenic emission inventories in Africa OMI HCHO EOS Aura STM 1-3 October, 2012 E. A. Marais

REGIONAL/GLOBAL INTERACTIONS IN ATMOSPHERIC CHEMISTRY Greenhouse gases Halocarbons Ozone Aerosols Acids Nutrients Toxics SOURCE CONTINENT REGIONAL ISSUES:

Ray Nassar, Jennifer Logan, Lee Murray, Lin Zhang, Inna Megretskaia Harvard University COSPAR, Montreal, 2008 July Investigating Tropical Tropospheric.

Critical Assessment of TOMS-derived Tropospheric Ozone: Comparisons with Other Measurements and Model Evaluation of Controlling Processes M. Newchurch.

Critical Assessment of TOMS-derived Tropospheric Ozone: Comparisons with Other Measurements and Model Evaluation of Controlling Processes M. Newchurch.

Regional Chemical Modeling in Support of ICARTT Topics:  How good were the regional forecasts?  What are we learning about the emissions?  What are.

CHARGE QUESTIONS: ENDPOINTS  anthropogenic emissions   air pollution   climate OK, but can we be more specific?  Intercontinental transport of.

WORKSHOP ON CLIMATE CHANGE AND AIR QUALITY : part I: Intercontinental transport and climatic effects of pollutants OBJECTIVE: Define a near-term (-2003)

Breakout Session 1 Air Quality Jack Fishman, Randy Kawa August 18.

THE NASA/GTE/TRACE-P AIRCRAFT MISSION 26 February – 10 April 2001 MISSION OBJECTIVES to determine the chemical composition of the Asian outflow over the.

Analysis of TES and MLS tropospheric data for ozone and CO in 2005 and 2006 using the GMI and GEOS-Chem global models. Jennifer A. Logan, Ray Nassar, Inna.

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,

BACKGROUND AEROSOL IN THE UNITED STATES: NATURAL SOURCES AND TRANSBOUNDARY POLLUTION Daniel J. Jacob and Rokjin J. Park with support from EPRI, EPA/OAQPS.

TTL workshop, Honolulu, October 17, 2012 The role of Stratospheric Aerosol and Ozone in Climate – AerOClim – Stratospheric and upper tropospheric processes.

TROPOSPHERIC OZONE AS A CLIMATE GAS AND AIR POLLUTANT: THE CASE FOR CONTROLLING METHANE Daniel J. Jacob with Loretta J. Mickley, Arlene M. Fiore, Yaping.

TESTING GLOBAL MODELS OF INTERCONTINENTAL POLLUTION TRANSPORT USING AIRCRAFT AND SATELLITE OBSERVATIONS Daniel J. Jacob with Mathew J. Evans, T. Duncan.

INTERCONTINENTAL TRANSPORT EXPERIMENT – NORTH AMERICA (INTEX-NA)

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

LaRC Air Quality Applications Group Sushil Chandra Jerry Ziemke

INTERCONTINENTAL TRANSPORT: CONCENTRATIONS AND FLUXES

Retrieval of tropospheric NO2 from GOME

Recent Milestones: May 2002: Go-ahead from NASA

INTERCONTINENTAL TRANSPORT EXPERIMENT – NORTH AMERICA (INTEX-NA)

SATELLITE OBSERVATIONS OF ATMOSPHERIC CHEMISTRY

Randall Martin, Daniel Jacob, Jennifer Logan, Paul Palmer

SUMMER 2004 FIELD STUDIES Modeling support by Harvard University

Daniel J. Jacob Harvard University

ICARTT: COORDINATED ATMOSPHERIC CHEMISTRY CAMPAIGN OVER EASTERN NORTH AMERICA AND NORTH ATLANTIC IN SUMMER 2004 International, multi-agency collaboration.

North American Hydrocarbon Emissions Measured from Space

Satellite Remote Sensing of Ozone-NOx-VOC Sensitivity

Space-based Diagnosis of Surface Ozone Sensitivity to Anthropogenic Emissions Randall Martin Aaron Van Donkelaar Arlene Fiore.

WEST AFRICAN MONSOON EXPERIMENT (WAM)

Transpacific satellite and aircraft observations of Asian pollution: An Integration of MOPITT and TRACE-P Colette L. Heald, Daniel J. Jacob, Arlene M.

Kelly Chance Smithsonian Astrophysical Observatory

HARVARD GROUP TRACE-P ACTIVITIES (a planned papers)

AIR POLLUTION AND GLOBAL CHANGE: TOWARDS AN INTEGRATED POLICY

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.

Colette Heald Atmospheric Chemistry Modeling Group Harvard University

SATELLITE OBSERVATIONS OF OZONE PRECURSORS FROM GOME

MEASUREMENT OF TROPOSPHERIC COMPOSITION FROM SPACE IS DIFFICULT!

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

Randall Martin Mid-July

Presentation transcript:

WESTERN AFRICA MISSION (WAM): An AURA Collaborative Science Mission Planning Committee: D.J. Jacob, E.V. Browell, W.H. Brune, J.H. Crawford, J.A. Logan, H.B. Singh AURA Validation Workshop Pasadena, March 19-20, 2002

WESTERN AFRICA MISSION (WAM) an AURA collaborative science mission OBJECTIVES: To understand the interactions between biomass burning, the biosphere, human activity, lightning, and dust in determining tropospheric ozone and aerosol production over western Africa; To understand the role of deep convection, the monsoon, and other flow patterns in the processing of these emissions; To understand the mechanisms for outflow of ozone, aerosols, and their precursors from western Africa to the global troposphere; To provide Aura tropospheric validation data in a complex and highly variable tropical environment where TOMS appears to experience unresolved difficulties. Opportunity for collaboration with European AMMA (African Monsoon Multidisciplinary Analysis) field campaigns in 2005 (ground stations, light aircraft).

Dust Savanna Anthropogenic Biofuel Forest Biomass Burning Ocean Monsoon Flux Harmattan Flux WESTERN AFRICA IS A PARTICULARLY ACTIVE AND COMPLEX REGION OF THE TROPICS Celine Mari, LA Toulouse Biomass Burning Lightning

ATSR FIRE COUNTS (1997) Western Africa is one of the world’s most active biomass burning regions: DJF season

LARGE DIFFERENCE BETWEEN MODEL AND TOMS TROPOSPHERIC OZONE COLUMNS OVER W. AFRICA GEOS-CHEM TOMS (CCD) JJA SON MAM DJF Martin et al. [2002]

OZONE VERTICAL PROFILES OVER ABIDJAN North African Dec-Feb ozone enhancement from biomass burning Is seen by aircraft observations but not by TOMS (Martin et al., 2002) MOZAIC aircraft data GEOS- CHEM TOMS (distributed w/assumed standard profile) Note: in situ observations over and around western Africa are exceedingly few!

LIS LIGHTNING FLASHES (2000) Western Africa is one of the world’s most active lightning regions DJF JJA

…AND YET MODELS PREDICT MAX. LIGHTNING INFLUENCE ON OZONE OVER S. ATLANTIC YEAR-ROUND Difference between standard and no-lightning GEOS-CHEM simulations Martin et al. [2002]

HIGH AFRICAN BIOGENIC VOC EMISSIONS SEEN BY GOME T. Kurosu (SAO) and P. Palmer (Harvard)

WESTERN AFRICA IS ONE OF THE DUSTIEST REGIONS ON EARTH

DUST OVER WESTERN AFRICA CAN HAVE COMPLEX EFFECTS ON SATELLITE RETRIEVALS SeaWIFS “true-color” data (obtained from R. Husar)

INTEGRATED OBSERVATIONAL STRATEGY FOR WAM AURA: Ozone, CO, H 2 O,NO, NO 2, HNO 3, CH4, HCHO, … 3-D CTM forecasts and analyses WB-57 and DC-8 aircraft SATELLITES AIRCRAFT, SONDES, GROUND MODELS Design mission to optimize value of combined AURA/aircraft data set towards addressing mission objectives and testing relevant CTMs; AURA validation is an essential component of process Others: CO 2, aerosols, surface properties, lightning…

WAM MISSION PLAN Two aircraft WB-57: vertical profiles to tropopause, convective outflow DC-8: source region characterization, lower-altitude outflow Link with other AURA validation missions WAM will be part of AVE and may link with TC3 Costa Rica deployment; WAM complements TC3 which focuses on cleaner and simpler regions of the tropics. Two seasons winter (Jan-Feb): biomass burning summer or shoulder season (Apr-Oct): monsoon, lightning Bases of operations Ivory Coast, Benin, Senegal (link with European planning) Ancillary measurements Ozonesonde launches, ground-based lidar Coordination with European aircraft, ground-based stations Timing 2005 for summer phase would take advantage of European participation.

WAM AIRCRAFT PAYLOADS AND FLIGHT PLANS PAYLOADS –WB-57: AVE payload –DC-8: Remote ozone, aerosol, water vapor Ozone, CO, CO 2, H 2 O, UV, aerosol properties, NO y species, HO x and HO y species, VOCs, ammonia FLIGHT PLANS –Convective flights (WB-57, DC-8): vertical profiles in convective inflow/outflow, contrast to background – Source characterization flights (DC-8) –Chemical outflow and aging flights (DC-8) AURA VALIDATION STRATEGY –Use WB-57 profiling capabilities, support with DC-8 detailed aerosol/chemical payload and lidars.