Development of a method for monitoring of insect induced forest defoliation - limitation of MODIS data in Fennoscandian forest landscapes

• Published in: Silva Fennica
• Main Authors: Olsson, Per-Ola, Kantola, Tuula, Lyytikäinen-Saarenmaa, Päivi, Jönsson, Anna Maria, Eklundh, Lars
• Other Authors: Department of Forest Sciences, Forest Health Group, Forest Ecology and Management
• Format: Article in Journal/Newspaper
• Language: English
• Published: FINNISH SOC FOREST SCIENCE-NATURAL RESOURCES INST FINLAND 2016
• Subjects: insect defoliation detection; remote sensing; coarse-resolution; EVI2; z-score; Sentinel-2; SIBERIAN SILKMOTH OUTBREAK; SATELLITE SENSOR DATA; TIME-SERIES; CLIMATE-CHANGE; EPIRRITA-AUTUMNATA; SCOTS PINE; OPEROPHTERA-BRUMATA; VEGETATION INDEXES; DETECTING TRENDS; BIRCH FOREST; 4112 Forestry; 1171 Geosciences; 1181 Ecology; evolutionary biology; Orlova; Fennoscandia; Fennoscandian; Northern Sweden
• Online Access: http://hdl.handle.net/10138/161259

We investigated if coarse-resolution satellite data from the MODIS sensor can be used for regional monitoring of insect disturbances in Fennoscandia. A damage detection method based on z-scores of seasonal maximums of the 2-band Enhanced Vegetation Index (EVI2) was developed. Time-series smoothing w...