The MODIS burned area product over southern Africa for the month of September 2000 was used to calculate regional biomass burning emissions from grassland and woodland fires for a number of trace gases and particulates at 1 km spatial resolution. A dynamic regional fuel load model developed for southern Africa in support of SAFARI 2000 fire emissions modeling is used to compute spatially explicit southern Africa fuel load data. Regional grassland and woodland emissions are estimated using ecosystem-specific emission factor algorithms for carbon dioxide (CO2), carbon monoxide (CO), methane (CH4), non-methane hydrocarbons (NMHC), and particulate matter with diameter less than 2.5 µm (PM2.5) for southern African savanna fires (Korontzi et al., 2004). In addition, the emissions database for this region is expanded by incorporating emission factors for a variety of compounds, including oxygenated volatile organic compounds (OVOC), halocarbons, nitrogen oxides (NOx), ammonia (NH3), sulfur dioxide (SO2), hydrogen cyanide (HCN), and particulate ionic components measured during the SAFARI 2000 dry season field campaign.
The data set archived by ORNL DAAC provides a MODIS-based estimate of CO (carbon monoxide) pyrogenic emissions (in kg) for southern Africa in September 2000 at 1 km. The data image file is stored in GeoTIFF binary format. Pyrogenic emissions of the other trace gases and particulates estimated by this study will be archived by ORNL DAAC when the data sets are finalized.
Cite this data set as follows:
Korontzi S., D. P. Roy, and C. O. Justice. 2004. SAFARI 2000 Emissions Estimates, MODIS Burned Area Product, Dry Season 2000. Data set. Available on-line [http://daac.ornl.gov/] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. doi:10.3334/ORNLDAAC/758.
Justice, C. O., L. Giglio, S. Korontzi, J. Owens, J. T. Morisette, D. P. Roy, J. Descloitres, S. Alleaume, F. Petitcolin, and Y. Kaufman. 2002. The MODIS fire products. Remote Sensing of Environment, 83: 244-262.
Korontzi, S., D. E. Ward, R. A. Susott, R. J. Yokelson, C. O. Justice, P. V. Hobbs, E. Smithwick, and W. M. Hao. 2003. Seasonal variation and ecosystem dependence of emission factors for selected trace gases and PM2.5 for southern African savanna fires. Journal of Geophysical Research-Atmosphere, 108 (D24): 4758-4758.
Korontzi, S., C. O. Justice, and R. J. Scholes. 2003. Influence of timing and spatial extent of vegetation fires in southern Africa on atmospheric emissions. Journal of Arid Environments, 54(2): 395-404.
Korontzi, S., D. P. Roy, C. O. Justice, and D. E. Ward. 2004. Modeling and sensitivity analysis of fire emissions in southern Africa during SAFARI 2000. Remote Sensing of Environment, 92(2): 255-275.
Sinha, P., P. V. Hobbs, R. J. Yokelson, I. T. Bertschi, D. R. Blake, I. J. Simpson, S. Gao, T. W. Kirchstetter, and T. Novakov. 2003. Emissions of trace gases and particles from biomass burning in southern Africa. Journal of Geophysical Research, 108(D13), 8487, doi:10.1029/2002JD002325.
Yokelson, R. J., I. T. Bertschi, T. J. Christian, P. V. Hobbs, D. E. Ward, and W. M. Hao. 2003. Trace gas measurements in nascent, aged, and cloud-processed smoke from African savanna fires by airborne Fourier transform infrared spectroscopy (AFTIR). Journal of Geophysical Research, 108(D13): 8478, doi:10.1029/2002JD002322.
This data set provides a MODIS-based estimate of CO (carbon monoxide) pyrogenic emissions (in kg) for southern Africa in September 2000 at 1 km. The MODIS_SEP_2K _CO.tif image file is stored in GeoTIFF binary format. There is also an ENVI header file, named MODIS_SEP_2K _CO.hdr (ASCII text).
The image data format is shown below:
| file format | GeoTiff |
| data type | 32-bit signed long integer |
| image size | 3717 samples by 3906 lines |
| geographic projection | Lambert Azimuthal Equal Area, center of projection Longitude = 25.0 degrees, Latitude = -15.0 degrees |
| datum | none |
| sphere radius | 6370997.0 m |
| upper left corner, x | 9.673753° E |
| upper left corner, y | 0.338881° N |
| x pixel size | 1000 m |
| y pixel size | 1000 m |
Additional information about the data format, fire emissions modeling methodology, model input data, and results is found in the companion file: http://daac.ornl.gov/daacdata/safari2k/remote_sensing/MODIS_emissions/comp/modis_emissions_readme.pdf.
2004/8/11
2004/8/11
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