McNairn, H., Powers, J., & Wiseman, G. (2014). SMAPVEX12 Land Cover Classification Map, Version 1 [Data set]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/4FRNSHRF3TRY Date Accessed: 2026-02-18
McNairn, Heather, Jarrett Powers, and Grant Wiseman. “SMAPVEX12 Land Cover Classification Map, Version 1.” NASA National Snow and Ice Data Center Distributed Active Archive Center, 2014. doi:10.5067/4FRNSHRF3TRY. Date Accessed: 2026-02-18
McNairn, Heather, et al. SMAPVEX12 Land Cover Classification Map, Version 1. NASA National Snow and Ice Data Center Distributed Active Archive Center, 2014, doi:10.5067/4FRNSHRF3TRY. Date Accessed: 2026-02-18