TY - RPRT TI - A global reference database from very high resolution commercial satellite data and methodology for application to Landsat derived 30 m continuous field tree cover data AU - Bruce Pengra AU - Jordan Long AU - Devendra Dahal AU - Stephen V. Stehman AU - Thomas R. Loveland PY - 2015 DO - 10.1016/j.rse.2015.01.018 UR - https://pubs.usgs.gov/publication/70187763 ID - 70187763 ER -