Tropospheric CO interannual variations as a proxy for emissions from forest fires.

Carbon monoxide (CO) is the second (after CO2) carbonaceous compound emitted by forest fires. Its interannual variations amount to 40-60% of background values and can be easily measured using both in situ and total column techniques. This report presents results of consistent remote sensing of CO since 1996 until the end of 2006 (MOPITT after 2000). Pure “top-down” estimates of CO emissions (without any a-priori) are compared with the most comprehensive for today pure “bottom-up” calculations GFVDv2 by van der Werf et al., and Kasischke et al., GBC, 2005.

Updated record HNH CO emission anomaly (Tg/mon)

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0

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1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007

Randerson et al.

MOPITT

AverTC-MOPITT

ACP, Yurganov et al., 2005 CO total column anomalies (updated)

0.8

0.9

1

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2000 2001 2002 2003 2004 2005 2006 2007

Rel

ativ

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nits

MOPITT (30-90 N)

Zvenigorod

Jungfrau

Boreal belt of the Northern Hemisphere

Global burden, MOPITT CO global burden, Tg

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2000 2001 2002 2003 2004 2005 2006 2007

MOPITT

mean00-01

Anomalies of global emissions

Anomaly of CO global emission, Tg/mon

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2000 2001 2002 2003 2004 2005 2006 2007

MOPITT, Box model

vdW et al, GFEDv2

GFED Anom_GFED this report1996 120.41997 30.2 -11.4 14.61998 132.4 90.8 143.11999 45.6 4.0 24.82000 47.7 6.1 0.32001 35.9 -5.7 -0.62002 77.1 35.5 92.22003 95.7 54.1 130.62004 40.8 -0.7 30.32005 33.8 -7.8 29.12006 35.4

30 N – 90 N, Tg/yr Global, Tg/yr Anomalies of boreal CO emissions, Tg/yr

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1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006

GFEDv2

this report

Anomalies of CO global emission, Tg/yr

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1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006

GFEDv2

this report

30 N – 90 N Global

Conclusions and intentions● CO appears to be the best atmospheric tracer for biomass burning; it is easily measurable either from the ground or from space.

● Integration of satellite and total column ground based measurements supplies CO tropospheric burdens. Their interannual variations can be easily converted into the emission anomalies.

● Comparisons with inventories reveal both agreements and disagreements.

● Our goal is to employ both ground-based and satellite techniques for CO monitoring. Global and regional burdens will be derived from all available data; MOPITT is underway, the next instruments will be AIRS, then SCIAMACHY, TES and so on. These records will be updated and validated using available ground-based facilities. CO emission will be used as a proxy for estimates of gaseous and aerosol emissions from biomass burning and their trends.We acknowledge a financial support from NOAA grant # NA04A0AR4310095 and from NASA Carbon Cycle Program.

A comparison with bottom-up estimates, 1998, Tg/mon (mean 2000-2001 is shown for comparison)

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1 2 3 4 5 6 7 8 9 10 11 12

GFEDv2

[Kasiscke et al., 2005]

GFEDv2 (2000-01)

This report

L. Yurganov, W. McMillan, (University of Maryland Baltimore County, JCET) , A. Dzhola , E. Grechko. (Institute of Atmospheric Physics, Moscow, Russia)

Seasonal patterns, boreal areas(note different scales)

CO anomalies of total columns (top) and surface VMR (bottom)

Burden (top), emission (middle) and fire counts (bottom)

CO anomalies of total columnsAnomalies of CO emission

2003, Boreal fires emission, Tg/mon

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1015202530354045

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GFEDv2

[Kasiscke et al., 2005]

GFEDv2 (2000-01)

This report

Total column measurements: courtesy A. Dzhola (Zvenigorod) and E. Mahieu (Jungfraujoch)

GFEDv2 ANOM GFEDv2this report19961997 555.6 200.81998 589.5 234.71999 391.2 36.42000 336.0 -18.8 31.72001 364.3 9.5 -34.02002 417.3 62.5 45.12003 396.5 41.7 83.02004 403.9 49.1 72.22005 410.4 55.6 165.22006 168.2