High Resolution, Annual Maps of Field Boundaries for Smallholder-Dominated Croplands at National Scales. - Lyndon D. Estes; Su Ye; Lei Song; Boka Luo; J. Ronald Eastman; Zhenhua Meng; Qi Zhang; Dennis McRitchie; Stephanie R. Debats; Justus Muhando; Angeline H. Amukoa; Brian W. Kaloo; et al. (Frontiers Artif. Intell., 2021)