1. An atmospheric chemist’s view of the Earth System Paul Palmer, University of Edinburgh
HO2 O3 NO OH
NO2 hv
Pyro-convection
NOx, RH, CO O3
Visibility
Direct intercontinental transport of pollutants O3
Continent 1
Continent 2
Ocean physics, chemistry, biology

2. Ozone Monitoring Instrument
Using satellite observations of HCHO to learn about surface emissions of VOCs
biogenic, pryogenic, anthropogenic
pryogenic
anthropogenic
biogenic
pyrogenic
Thomas Kurosu, Harvard-Smithsonian
HCHO August 2006
Ozone Monitoring Instrument

3. What drives observed variability of tropical BVOC emissions?
Tropical ecosystems represent 75% of biogenic NMVOC emissions
What drives observed variability of tropical BVOC emissions?

4. Relating HCHO Columns to Isoprene Emissions
JUL
JUN
GOME
GEOS-CHEM
AUG
[1016 molecules cm-2]
-0.5
0.5
1.5
2.5
HCHO column
2001
VOC
HCHO
hours OH
h, OH
Net
GEOS-CHEM as a transfer function
NCEP Surface Temperature [K]
GOME Isoprene Emissions [1012 atoms C cm-2s-1]
Three/four prong attack:
Chemistry; Emissions: magnitude and controls; Transport
HCHO Column [1016 molec cm-2]
Isoprene Emission [1012 atoms C cm-2 s-1]

5. HCHO and Isoprene over the Amazon
In situ isoprene 2002
Trostdorf et al, 2004
1997
1998
1999
2000
2001
GOME
ATSR Firecounts used to remove HCHO from fires

6. CH4 & CO are dominant OH sinks
1) Global atmospheric CH4 budget is well understood
SCIAMACHY-model prior, Aug-Nov 2003
Frankenberg et al, 2005
Apportioning v. uncertain source contributions is more difficult
Likely to be ~100 Tg yr-1
Tg yr-1

7. 2) CO: Aircraft observations versus satellite observations
GEOS-CHEM -- MOPITT
A priori
A posteriori
CO Source [Tg/yr]
Heald et al, 2004

8. Biomass Burning: emissions and injection heights
October 2006
ACE HCHO c/o P. Bernath
OMI HCHO c/o T. Kurosu
ATSR Firecounts
Pyro-convective transport is difficult to model accurately.
Two (or more) pieces of independent information allows a simultaneous inversion of surface emission and injection height.
Schoeberl et al, 2006