Title :
Estimating the global extent of boreal forest burning using AVHRR
Author :
Fraser, R.H. ; Li, Z. ; Cihlar, J.
Author_Institution :
Intermap Technol., Ottawa, Ont., Canada
Abstract :
In this analysis the authors synergistically combined an AVHRR-based fire product, 10-day Normalised Difference Vegetation Index (NDVI) composites, and global land cover classification to produce the first satellite-based estimate of global boreal forest burned area. The approach taken was to eliminate spurious hotspots using an NDVI composite and forest mask, then use remaining hotspots to “seed” an iterative burn-growing algorithm. The global extent of boreal burning in 1993 was estimated to be 6.0 million ha, a relatively modest level of burning compared to a 1987 estimate for eastern Asia
Keywords :
fires; forestry; geophysical techniques; pollution; pollution measurement; remote sensing; vegetation mapping; AD 1993; AVHRR; IR radiometry; NDVI; Normalised Difference Vegetation Index; boreal forest; burned area; burning; forest fire; forestry; geophysical measurement technique; global extent; infrared imaging; iterative burn-growing algorithm; pollution; satellite remote sensing; satellite-based estimate; spatial distribution; vegetation; vegetation mapping; Aerosols; Algorithm design and analysis; Asia; Clouds; Contamination; Fires; Iterative algorithms; Iterative methods; Remote sensing; Vegetation mapping;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.773439
