| animate_annual | Plot an animation of forest change within a given area of interest (AOI) | 
| annual_stack | Generate an annual stack of forest change from GFC product | 
| calc_gfc_tiles | Calculate the GFC product tiles needed for a given AOI | 
| calc_pixel_areas | Calculates the pixel area for each line of a raster | 
| check_aoi | Check if aoi is an sf or sp type object If sp, convert to sf and return | 
| download_tiles | Download a set of GFC tiles | 
| extract_gfc | Extracts GFC data for a given AOI | 
| gfc_stats | Produce a table of forest cover change statistics for a given AOI | 
| gfc_tiles | Grid of tiles used for the GFC product | 
| plot_gfc | Plot forest change (relative to 2000) for a given year | 
| scale_by_pixel_area | Scales a raster by the area of each pixel in meters | 
| scale_toar | Scale the first or last top of atmosphere (TOA) reflectance images | 
| test_poly | Polygon outlining TEAM site in Caxiuanã, Brazil | 
| threshold_gfc | Threshold the GFC product | 
| utm_zone | Given a spatial object, calculate the UTM zone of the centroid | 
| utm_zone-method | Given a spatial object, calculate the UTM zone of the centroid |