geoschem simulations of the impact on tropospheric o3 from the 2003 canberra megafires train-borne...

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GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia Nicholas Jones*, Nicholas Deutscher*, David Griffith*, Chris Miller*, Guergana Guerova* , Clare Paton-Walsh*, Rittich Boah**, Chris Pickett-Heaps*** *School of Chemistry, UOW **School of Earth and Environment, UOW **Harvard University

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Page 1: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires

Train-borne measurements of tropical methane enhancements in Australia

Nicholas Jones*, Nicholas Deutscher*, David Griffith*, Chris Miller*, Guergana

Guerova*, Clare Paton-Walsh*, Rittich Boah**, Chris Pickett-Heaps***

*School of Chemistry, UOW**School of Earth and Environment, UOW**Harvard University

Page 2: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

Paton-Walsh et al, J. Geophys. Res., 110, D24305, doi:10.1029/2005JD006202, 2005

Trace gas versus AOD, various Australian forest fires

Page 3: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

Figure 4, from Guerova & Jones Atmos. Chem. Phys. Discuss., 9, S205–S206, 2009.

Measured and modelled O3 concentrations, January 2003 Canberra fires

Page 4: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

Portable FTIR system in carriage

Adelaide to Darwin Ghan train.

Train-borne measurements of tropical methane enhancements in Australia

Page 5: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

Trip 1, Feb 24 – 29,

2008, Wet

Trip 2, Mar 30 – Apr 4,

2008, Wet

Trip 3, Sep 28 – Oct 1,

2008, Dry

Page 6: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

Trip 1, Feb 24 – 29, 2008

Trip 2, Mar 30 – Apr 4, 2008

Darwin, 12S Katherine, 15S

Page 7: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia
Page 8: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

-35

-30

-25

-20

-15

Latit

ude

(°N

)

140138136134132130Longitude (°E)

Measured (GPS) Interpolated

Adelaide

Alice Springs

Darwin

Katherine

MODIS Wetlands January 2008

Page 9: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

MODIS Wetlands May 2008

Page 10: GeosChem simulations of the impact on tropospheric O3 from the 2003 Canberra megafires Train-borne measurements of tropical methane enhancements in Australia

Blue line: GEOS5 (2x2.5 deg. and 47 level resolution), courtsey of Chris Pickett-Heaps, using the methane simulation module in GEOS-CHEM developed by Jerome Drevet (Switzerland)