Computer Science
Scientific paper
Nov 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004esasp.582...57r&link_type=abstract
Proceedings of the Second MSG RAO Workshop (ESA SP-582). Salzburg, Austria, 9 - 10 September 2004. Organised by ESA, in cooperat
Computer Science
Scientific paper
Vegetation fires in southern Africa are a major source of trace gas and aerosol emissions. Estimates of the amount of biomass combusted annually in southern Africa vary between 18 and 2719 Tg, values that are highly significant but poorly constrained. A new approach to potentially improve the uncertainty on such estimates is via use of Fire Radiative Power (FRP) and its temporal integral Fire Radiative Energy (FRE), which are respectively related to the rate and total amount of biomass combustion. The August 2002 launch of the SEVIRI radiometer onboard MSG (METEOSAT-8) presents a unique opportunity to obtain FRP estimates at 15-minute intervals over Africa, the continent where the majority of biomass burning occurs. Here we present the first FRP retrievals from SEVIRI over southern Africa, and compare these to those from near-coincident MODIS data. Good agreement is achieved on a per-fire basis (r2 =0.83, bias = -20 MW, scatter = 213 MW). Correlation on a regional (e.g. ~ 2300 x 2300 km) basis is also strong (r2 =0.92), however SEVIRI underestimates regional FRP with respect to MODIS by, on average, 18% due to many small and/or weakly emitting fires remaining undetected. Using relationships developed during ground-based experiments, SEVIRI-derived FRP is converted into estimates of the rate of biomass burning. Integrating this over the 4.5 days of data available here, it is estimated that 23 Tg of biomass are combusted over southern Africa.
Perry G. W.
Roberts Gareth
Wooster Martin J.
No associations
LandOfFree
High Temporal Resolution Fire Radiative Energy and Biomass Combustion Estimates Derived from MSG SEVIRI does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with High Temporal Resolution Fire Radiative Energy and Biomass Combustion Estimates Derived from MSG SEVIRI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High Temporal Resolution Fire Radiative Energy and Biomass Combustion Estimates Derived from MSG SEVIRI will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1761443