Seasonal Variation in Fraction of Absorbed PhotosyntheticallyActic Radiation and Vegetation Properties in Burned Forests in Interior Alaska

Fraction of absorbed photosynthetically acrive radiation (FAPAR) is an important ecophysiological parameter for carbon and water exchange modeling. However, validation studies of FAPAR are scarce, especially for disturbance area. One study (Steinberg et al., 2006) revealed that the MODIS FAPAR product is overestimated for burned boreal forests. Wildfire is a major disturbance in boreal forest ecosystems, and it significantly influences carbon and water exchange processes. It is important to explicitly incorporate burned areas in estimating regional exchanges.