reads in Global Area Equipped for Irrigation for years 1900-2015 from Mehta et al. (2022)
Arguments
- subtype
data subtype to be downloaded Subtypes available: Combination of version (v3, v4) and data source: 'GMIA': gridded base map for downscaling from Stefan et al. (2013). Global Map of Irrigation Areas version 5. 'Meier2018': gridded base map for downscaling from Meier, et al. (2018). Global Irrigated Areas. Separated by "_" (e.g., subtype = "v4_GMIA")