Accuracy assessment of a large-scale forest cover map of Central Siberia from synthetic aperture radar

Balzter, H., Talmon, E., Wagner, W., Gaveau, D., Plummer, S., Yu, J.J., Quegan, S., Davidson, M., Le Toan, T., Gluck, M., Shvidenko, A., Nilsson, S., Tansey, K., Luckman, A., & Schmullius, C. (2002). Accuracy assessment of a large-scale forest cover map of Central Siberia from synthetic aperture radar. Canadian Journal of Remote Sensing 28 (6) 719-737. 10.5589/m02-067.

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Abstract

Russia's boreal forests host 11% of the world's live forest biomass. They play a critical role in Russia's economy and in stabilizing the global climate. The boreal forests of central and western Siberia represent the largest unbroken tracts of forest in the world. The European Commission funded SIBERIA project aimed at producing a forest map covering an area of 1.2 million square kilometres. Three synthetic aperture radars (SAR) on board the European remote sensing satellites ERS-1 and ERS-2 and the Japanese Earth resources satellite JERS-1 were used to collect remote sensing data. Radar is the only sensor capable of penetrating cloud cover and imaging at night. An adaptive, model-based, contextual classification to derive ranked total growing stock volume classes suitable for large-scale mapping is described. The accuracy assessment of the Siberian forest cover map is presented. The weighted coefficient of agreement κw is calculated to quantify the agreement between the classified map and the reference data. First, the classified map is compared with Russian forest inventory data (κw = 0.72). The inherent uncertainty in the forest inventory data is simulated by allowing for fuzziness. The effect of uncertainty on the unweighted coefficient of agreement κ is stronger than that on the weighted coefficient of agreement κw. Second, the map is compared with a more reliable, independent posterior ground survey by Russian forestry experts (κw = 0.94). The follow-on project SIBERIA-II started in January 2002 and is striving to develop multisensor concepts for greenhouse gas accounting (www.siberia2.uni-jena.de).

Item Type:	Article
Research Programs:	Forestry (FOR)
Bibliographic Reference:	Canadian Journal of Remote Sensing; 28(6):719-737 [2002]
Depositing User:	IIASA Import
Date Deposited:	15 Jan 2016 02:14
Last Modified:	27 Aug 2021 17:37
URI:	https://pure.iiasa.ac.at/6549

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