Sources of carbon monoxide and formaldehyde in North America determined from high-resolution atmospheric data
S. M. Miller
(1)
,
D. M. Matross
(2)
,
A. E. Andrews
(3)
,
D. B. Millet
(4)
,
M. Longo
(1)
,
E. W. Gottlieb
(1)
,
A. I. Hirsch
(3)
,
C. Gerbig
(5)
,
J. C. Lin
(6)
,
B. C. Daube
(1)
,
R. C. Hudman
(1)
,
P. L. S. Dias
(7)
,
V. Y. Chow
(1)
,
S. C. Wofsy
(1)
1
EPS -
Department of Earth and Planetary Sciences [Cambridge, USA]
2 Department of Environmental Science
3 GML - ESRL Global Monitoring Laboratory [Boulder]
4 Department of Soil
5 MPI-BGC - Max Planck Institute for Biogeochemistry
6 Department of Earth and Environmental Sciences [Waterloo]
7 National Laboratory of Scientific Computing
2 Department of Environmental Science
3 GML - ESRL Global Monitoring Laboratory [Boulder]
4 Department of Soil
5 MPI-BGC - Max Planck Institute for Biogeochemistry
6 Department of Earth and Environmental Sciences [Waterloo]
7 National Laboratory of Scientific Computing
Résumé
We analyze the North American budget for carbon monoxide using data for CO and formaldehyde concentrations from tall towers and aircraft in a model-data assimilation framework. The Stochastic Time-Inverted, Lagrangian Transport model for CO (STILT-CO) determines local to regional-scale CO contributions associated with production from fossil fuel combustion, biomass burning, and oxidation of volatile organic compounds (VOCs) using an ensemble of Lagrangian particles driven by high resolution assimilated meteorology. In most cases, the model demonstrates high fidelity simulations of hourly surface data from tall towers and point measurements from aircraft, with somewhat less satisfactory performance in coastal regions and when CO from large biomass fires in Alaska and the Yukon Territory influence the continental US.
Inversions of STILT-CO simulations for CO and formaldehyde show that current inventories of CO emissions from fossil fuel combustion are significantly too high, by almost a factor of three in summer and a factor two in early spring, consistent with recent analyses of data from the INTEX-A aircraft program. Formaldehyde data help to show that sources of CO from oxidation of CH4 and other VOCs represent the dominant sources of CO over North America in summer.
Inversions of STILT-CO simulations for CO and formaldehyde show that current inventories of CO emissions from fossil fuel combustion are significantly too high, by almost a factor of three in summer and a factor two in early spring, consistent with recent analyses of data from the INTEX-A aircraft program. Formaldehyde data help to show that sources of CO from oxidation of CH4 and other VOCs represent the dominant sources of CO over North America in summer.
Domaines
Océan, AtmosphèreFormat du dépôt | Fichier |
---|---|
Type de dépôt | Article dans une revue |
Titre |
en
Sources of carbon monoxide and formaldehyde in North America determined from high-resolution atmospheric data
|
Résumé |
en
We analyze the North American budget for carbon monoxide using data for CO and formaldehyde concentrations from tall towers and aircraft in a model-data assimilation framework. The Stochastic Time-Inverted, Lagrangian Transport model for CO (STILT-CO) determines local to regional-scale CO contributions associated with production from fossil fuel combustion, biomass burning, and oxidation of volatile organic compounds (VOCs) using an ensemble of Lagrangian particles driven by high resolution assimilated meteorology. In most cases, the model demonstrates high fidelity simulations of hourly surface data from tall towers and point measurements from aircraft, with somewhat less satisfactory performance in coastal regions and when CO from large biomass fires in Alaska and the Yukon Territory influence the continental US. <br><br> Inversions of STILT-CO simulations for CO and formaldehyde show that current inventories of CO emissions from fossil fuel combustion are significantly too high, by almost a factor of three in summer and a factor two in early spring, consistent with recent analyses of data from the INTEX-A aircraft program. Formaldehyde data help to show that sources of CO from oxidation of CH<sub>4</sub> and other VOCs represent the dominant sources of CO over North America in summer.
|
Auteur(s) |
S. M. Miller
1
, D. M. Matross
2
, A. E. Andrews
3
, D. B. Millet
4
, M. Longo
1
, E. W. Gottlieb
1
, A. I. Hirsch
3
, C. Gerbig
5
, J. C. Lin
6
, B. C. Daube
1
, R. C. Hudman
1
, P. L. S. Dias
7
, V. Y. Chow
1
, S. C. Wofsy
1
1
EPS -
Department of Earth and Planetary Sciences [Cambridge, USA]
( 455248 )
- 20 Oxford Street, Cambridge, MA 02138
- États-Unis
2
Department of Environmental Science
( 61668 )
- États-Unis
3
GML -
ESRL Global Monitoring Laboratory [Boulder]
( 494156 )
- 325 Broadway , Boulder, CO 80305-3337
- États-Unis
4
Department of Soil
( 67697 )
- États-Unis
5
MPI-BGC -
Max Planck Institute for Biogeochemistry
( 540321 )
- Hans-Knoell-Str. 10, 07745 Jena
- Allemagne
6
Department of Earth and Environmental Sciences [Waterloo]
( 67699 )
- Waterloo, Ontario, Canada N2L 3G1
- Canada
7
National Laboratory of Scientific Computing
( 67700 )
- Brésil
|
Comité de lecture |
Oui
|
Vulgarisation |
Non
|
Langue du document |
Anglais
|
Nom de la revue |
|
Date de production/écriture |
2008-06-11
|
Audience |
Internationale
|
Date de publication |
2008-06-11
|
Volume |
8
|
Numéro |
3
|
Page/Identifiant |
11395-11451
|
Domaine(s) |
|
Origine :
Accord explicite pour ce dépôt
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