ICARTT: COORDINATED ATMOSPHERIC CHEMISTRY CAMPAIGN OVER EASTERN NORTH AMERICA AND NORTH ATLANTIC IN SUMMER 2004 - PowerPoint PPT Presentation

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ICARTT: COORDINATED ATMOSPHERIC CHEMISTRY CAMPAIGN OVER EASTERN NORTH AMERICA AND NORTH ATLANTIC IN SUMMER 2004

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

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Title: ICARTT: COORDINATED ATMOSPHERIC CHEMISTRY CAMPAIGN OVER EASTERN NORTH AMERICA AND NORTH ATLANTIC IN SUMMER 2004


1
ICARTT COORDINATED ATMOSPHERIC CHEMISTRY
CAMPAIGN OVER EASTERN NORTH AMERICA AND NORTH
ATLANTIC IN SUMMER 2004
International, multi-agency collaboration
  • SCIENTIFIC OBJECTIVES
  • Regional Air Quality characterize sources and
    transport of pollution in northeastern North
    America
  • Continental Outflow quantify North American
    outflow of environmentally important gases and
    aerosols, relate to sources
  • Transatlantic Pollution understand transport
    and chemical evolution of North American
    pollution across the Atlantic
  • Aerosol Radiative Forcing characterize
    direct/indirect effects of aerosols over
    northeastern North America and western North
    Atlantic

2
ICARTT THE PLAYERS
DLR, CNRS
NOAA/ ITCT
NASA/ INTEX
UK/ITOP
COBRA
MSC
Zoom over northeastern North America
NEAQS
Caltech/ ONR
DOE/ASP
3
INTEX-NA/ICARTT DC-8 Activities Preliminary
Status
GOAL To improve understanding of the U.S.
sources, boundary layer processing, and
continental outflow of environmentally important
gases and aerosols
INTEX-NA DC-8 Flight 3 -- 11
Start date July 1, 2004 14 flights completed 5
more to go
4
INTEX Flight 9 on 7/18
  • Inter-comparison flights among multiple platforms
  • Large-scale characterization of the troposphere
    across NA including sources
  • Characterization of continental boundary layer
    chemistry and venting
  • Large-scale continental outflow characterization
  • Chemical aging over North Atlantic (ITCT)
  • Convective venting to the upper troposphere
  • Satellite validation flights


5
DC-8 coordinated activities
4 7 3 2 1 2
1
6
Some preliminary observations
  • Asian influences across north America are far
    more pervasive than expected in the summer
  • Large fires in Alaska (gone now) sometimes
    affecting midwest and east coast
  • Anthropgenic pollution, smoke from fires, Asian
    and stratospheric influences coexist in the
    troposphere in stratified layers

7
NOAA fire/smoke on July 18
8
Visible fire smoke from the aircraft
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