Disturbances in the Siberian boreal forest - mapping fire-scars using multitemporal, multisensor approach

Author

George, C.T. ; Gerard, F. ; Baltzer, H. ; McCallum, I. ; Shvidenko, A. ; Nilsson, S. ; Schmullius, C.

Author_Institution

Centre for Ecology & Hydrology, Abbots Ripton, UK

Volume

1

fYear

2003

fDate

21-25 July 2003

Firstpage

491

Abstract

This paper summarizes a technique to map historical (1 to 10 years old) fire scars using a vegetation index, NDSWIR, based on the SWIR and NIR. A temporal set of NDSWIR SPOT-VGT images of Siberia were segmented and then recombined with the original NDSWIR images to form a per-pixel fire scar probability map. The results show a good agreement between the fire scar probability map, hotspot data and Landsat quicklooks, any discrepancies being accounted for by the differing dates of imagery and low resolution of SPOT-VGT.

Keywords

fires; forestry; geophysical techniques; image segmentation; probability; vegetation mapping; Landsat quicklooks; NDSWIR; NIR; SPOT-VEGETATION images; SWIR; Siberian Boreal Forest; fire scar probability map; fire-scars mapping; hotspot data; multisensor approach; multitemporal approach; vegetation index; Clouds; Environmental factors; Fires; Global warming; Hydrology; Image segmentation; Satellites; Snow; Soil; Vegetation mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International

Print_ISBN

0-7803-7929-2

Type

conf

DOI

10.1109/IGARSS.2003.1293819

Filename

1293819