To demonstrate how existing national and global LULC data sets can be combined for improved forest change monitoring, here a national LULC map of Thailand (Wichawutipong, 2006) having very detailed forest type information (12 forest type classes) but a low
temporal resolution (only one map date) was combined with a global tree cover data set (Hansen et al., 2013) having less detailed LULC information (percent tree cover/tree cover change) but a hight emporal resolution (annual maps). By combining the two data sets, multi-temporal information on deforestation/forest degradation (DFD) was obtained, and a baseline level of future LULCC related to forests was generated to 2020. To the author's knowledge, this is the first study to combine existing national and global LULC products to predict future LULCC.