GLC_FCS60: the first global 60-m land cover product with a fine classification system for 1975 and 1980

GLC_FCS60 is the first global 60-m land cover product with a fine classification system developed using comprehensive change detection. It employs a refined classification system inherited from the GLC_FCS30D product, which contains 35 land-cover classes and covers the years 1975 and 1980. Specifically, it is developed by combining an improved comprehensive change detection method, local adaptive classification models, and a series of post-classification processing methods, primarily using Landsat MSS time-series imagery. Validation results show that the 1975 product achieves overall accuracies of 80.13% for the 10 basic classes and 71.60% for the 17 level-1 classes, whereas the 1980 product achieves corresponding accuracies of 80.08% and 70.71%, respectively. The GLC_FCS60 dataset has been stored by a total of 961 independent 5°×5° geographical tiles, and the tile names as “GLC_FCS60_19751980_E***N##”, in which the “***” and “##” illustrate the longitude and latitude coordinates of the upper left corner of the tile data.