intercontinental transport experiment –north america (intex-na, or intex)
DESCRIPTION
INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX). Recent Milestones: May 2002: Go-ahead from NASA July 2002: meeting with NOAA/AL (ITCT-2K4) 4-5 September 2002: joint INTEX-ITCT-2K4-COBRA planning meeting - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/1.jpg)
INTERCONTINENTAL TRANSPORT EXPERIMENT –INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)NORTH AMERICA (INTEX-NA, or INTEX)
Recent Milestones:
• May 2002: Go-ahead from NASA
• July 2002: meeting with NOAA/AL (ITCT-2K4)
• 4-5 September 2002: joint INTEX-ITCT-2K4-COBRA planning meeting
• 15 September: revised white paper (Singh, Jacob, Pfister) for Aura Collaborative Science Strategy Document (Anderson)
![Page 2: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/2.jpg)
(1) To quantify the outflow of climatically important trace gases and aerosols (CIGAs) from North
America to the Atlantic, and relate this outflow to our understanding of North American sources and
sinks;
(2) To understand the chemical evolution of the North American outflow over the Atlantic, and assess
the implications for global influence and intercontinental transport of pollution;
(3) To quantify the transpacific transport of Asian pollution to North America.and its implications for
surface air quality.
INTERCONTINENTAL TRANSPORT EXPERIMENT – INTERCONTINENTAL TRANSPORT EXPERIMENT – NORTH AMERICA (INTEX)NORTH AMERICA (INTEX)
OBJECTIVES:
TWO AIRCRAFT: NASA DC-8 and P-3B
TWO PHASES: A (Jun-Jul 2004) and B (Mar-Apr 2006)
![Page 3: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/3.jpg)
INTEGRATED OBSERVATIONAL STRATEGY FOR INTEXINTEGRATED OBSERVATIONAL STRATEGY FOR INTEX
Pacific inflow
Outflow to Atlantic,chemical aging
NORTH AMERICAA priori estimates of surface sources/sinks
BL
FT Processing, ventilation,scavenging
LINK WITHITCT-2K4, COBRA
TRANSPACFICPOLLUTIONINFLUENCE
GLOBALINFLUENCE
TOP-DOWN ESTIMATESOF SOURCES, SINKS
LINK WITH ITOP, DLR
TRANSATLANTICPOLLUTION INFLUENCE
LINK WITH CNRS/SA
LINK WITH TERRA, ENVISAT,
AQUA, AURA, OCO (phase B)
Satellite validation
![Page 4: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/4.jpg)
INTEX OPERATIONAL SITES (PHASE A)INTEX OPERATIONAL SITES (PHASE A)
St. Louis, MODC-8 and P-3B
Pease AFB, NHDC-8, joint
with ITCT-2K4 (NOAA P-3B)
Wallops, VAP-3B
Seattle, WADC-8 overnight site
Edwards AFB, CADC-8 overnight
Eastern U.S. transects
N Atlanticoutflow
Chemicalaging
PBL ventilation,deep convection,
fire plumes
Transcontinentaltransects
![Page 5: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/5.jpg)
PRIORITY CHEMICAL MEASUREMENTS FOR INTEXPRIORITY CHEMICAL MEASUREMENTS FOR INTEX
• Priority 1 (mission critical): O3 (in situ and remote), aerosols (remote), H2O, CO2, CO
• Priority 2 (very important): NO, NO2, PAN, HNO3, NOy, CH4, N2O, speciated hydrocarbons, halocarbons, peroxides, carbonyls, OH, HO2, RO2, SO2, H2SO4, aerosol composition, size distribution, optical properties
• Priority 3 (important): Organic nitrates, single particle composition, radionuclides, alcohols, H2O (remote)
• Priority 5 (exploratory): NH3, HNO2, HNO4
No distinction of priorities between DC-8 and P-3B payloads
![Page 6: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/6.jpg)
WHAT IS AMMA? (formerly WAM)WHAT IS AMMA? (formerly WAM)
African Monsoon Multidimensional Analysis-OR/OU –
Analyse Multidimensionelle de la Mousson Africaine
• Multiyear monsoon dynamics experiment led by France/UK/Germany/U.S. • International Science Plan presently being written(U.S. lead: Chris Thorncroft, SUNYA)• Focus in wet season and shoulders (Apr-Oct) •First operational phase: Apr-Oct 2005
Plan for an “AMMA-dry” (Jan-Feb) led by radiation/chemistry community:• Interaction of biomass burning, dust, other continental influences• Validation of Aura, Parasol, Calipso, Cloudsat is strong focus• Leads: D. Tanre (France), J. Haywood (UK), M. Wendisch (Germany)• U.S. interest: radiation (Y. Kaufman, S. Ackerman), chemistry (Jacob, Browell, Brune, Crawford, Logan, Singh,…) - draft white paper available - • Timing: Jan-Feb 2005 or 2006• European resources: Mystere 20, BA-e146 aircraft, lidars, ground/island sites• High-altitude aircraft (e.g., WB-57) is crucial
![Page 7: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/7.jpg)
NASA COMPONENT OF AMMA:NASA COMPONENT OF AMMA:an AURA collaborative science missionan 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 mechanisms for outflow of ozone, aerosols, and their precursors from western Africa to the global troposphere;
• To characterize the transatlantic transport of this outflow;
• To provide Aura tropospheric validation data in a complex and highly variable tropical environment where TOMS appears to experience difficulties.
TWO PHASES:• Winter mission (Jan-Feb) with emphasis on biomass burning (top priority)• Summer mission (Jun-Aug) with emphasis on monsoon and dust
PLATFORMS: WB-57 (essential), DC-8 (desirable)
![Page 8: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/8.jpg)
Dust
SavannaAnthropogenicBiofuel
Forest
Biomass Burning
Ocean
Monsoon Flux
Harmattan Flux
WESTERN AFRICA IS A PARTICULARLY ACTIVE WESTERN AFRICA IS A PARTICULARLY ACTIVE AND COMPLEX REGION OF THE TROPICSAND COMPLEX REGION OF THE TROPICS
Celine Mari, LA Toulouse
Biomass BurningLightning
![Page 9: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/9.jpg)
ATSR FIRE COUNTS (1997)ATSR FIRE COUNTS (1997)Western Africa is one of the world’s most active Western Africa is one of the world’s most active
biomass burning regionsbiomass burning regions
![Page 10: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/10.jpg)
LARGE DIFFERENCE BETWEEN MODEL AND TOMS LARGE DIFFERENCE BETWEEN MODEL AND TOMS TROPOSPHERIC OZONE COLUMNS OVER W. AFRICATROPOSPHERIC OZONE COLUMNS OVER W. AFRICA
GEOS-CHEM - 1997 TOMS (CCD)- 1997
JJA
SON
MAM
DJF
Martin et al. [2002]
![Page 11: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/11.jpg)
LIS LIGHTNING FLASHES (2000)LIS LIGHTNING FLASHES (2000)Western Africa is one of the world’s most active Western Africa is one of the world’s most active
lightning regionslightning regions
DJF
JJA
![Page 12: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/12.jpg)
WESTERN AFRICA IS ONE OF THE DUSTIEST WESTERN AFRICA IS ONE OF THE DUSTIEST REGIONS ON EARTHREGIONS ON EARTH
![Page 13: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/13.jpg)
DUST OVER WESTERN AFRICA CAN HAVEDUST OVER WESTERN AFRICA CAN HAVECOMPLEX EFFECTS ON SATELLITE RETRIEVALSCOMPLEX EFFECTS ON SATELLITE RETRIEVALS
SeaWIFS “true-color” data (obtained from R. Husar)
![Page 14: INTERCONTINENTAL TRANSPORT EXPERIMENT –NORTH AMERICA (INTEX-NA, or INTEX)](https://reader036.vdocuments.site/reader036/viewer/2022062321/56813c69550346895da5f8d1/html5/thumbnails/14.jpg)
INTEGRATED OBSERVATIONAL STRATEGYINTEGRATED OBSERVATIONAL STRATEGYFOR AMMA-dryFOR AMMA-dry
Aura: Ozone, CO, H2O,NO, NO2, HNO3,CH4, HCHO, … 3-D CTM forecasts
and analyses
WB-57 aircraft (+DC-8?)
SATELLITES
AIRCRAFT, SONDES, GROUNDMODELS
Strong links to AVE and TC3
Parasol, Calipso, Cloudsat…
European surface sites, lidars, aircraft