National-scale 10 m annual maize maps for China and the contiguous United States using a robust index from Sentinel-2 time series

Yingze Huang, Bingwen Qiu, Peng Yang, Wenbin Wu, Xuehong Chen, Xiaolin Zhu, Shuai Xu, Laigang Wang, Zhanjie Dong, Jianyang Zhang, Joe Berry, Zhenghong Tang, Jieyang Tan, Dingding Duan, Yufeng Peng, Duoduo Lin, Feifei Cheng, Juanzhu Liang, Hongyu Huang, Chongcheng Chen