BIRD fire recognition and comparison with Terra/MODIS
Oertel, D. and Lorenz, E. and Zhukov, B. and Csiszar, I. (2005) BIRD fire recognition and comparison with Terra/MODIS. Small Satellites for Earth Observation - Selected Proceedings of the 5th International Symposium of the International Academy of Astronautics, Berlin 4-8, 2005, H.-P. Röser, R. Sandau, A. Valenzuela (eds.), ISBN:3-11-018851-1, V, pp. 23-30.
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Data of the MODerate resolution Imaging Spectro-radiometers (MODIS) on the Terra and Aqua satellites are widely used for global and regional monitoring of active fires. MODIS, with their infrared channel resolution of 1 km at nadir do omit small fires, which leads to an underestimation of the cumulative fire radiative power (FRP) on a regional or global scale. In order to estimate the significance of this effect, we compared the number and characteristics of fires detected by Terra/MODIS with those detected by the DLR small satellite BIRD. BIRD is dedicated for fire recognition, providing a resolution of 370 m at nadir in its infrared channels and allows the detection of smaller fires than MODIS by a factor of 7. For the comparison we used data acquired near-simultaneously by Terra/MODIS and BIRD over fires in Siberia, Australia and Portugal. The results show that (1) the FRP of more than a half of the hot clusters, which were detected by BIRD, is below the detection limit of MODIS, (2) MODIS does only slightly underestimate the cumulative FRP in ecosystems where large fires take place and therefore (3) MODIS is hardly suitable for an early fire detection, but it is an adequate instrument for cumulative FRP estimation.
|Title:||BIRD fire recognition and comparison with Terra/MODIS|
|Journal or Publication Title:||Small Satellites for Earth Observation - Selected Proceedings of the 5th International Symposium of the International Academy of Astronautics, Berlin 4-8, 2005, H.-P. Röser, R. Sandau, A. Valenzuela (eds.), ISBN:3-11-018851-1|
|In ISI Web of Science:||No|
|Page Range:||pp. 23-30|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|HGF - Program Themes:||W EO - Erdbeobachtung|
|DLR - Research area:||Space|
|DLR - Program:||W EO - Erdbeobachtung|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Optical Information Systems|
|Deposited By:||Ute Dombrowski|
|Deposited On:||09 Oct 2005|
|Last Modified:||14 Jan 2010 12:49|
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