| download_terraclimate | Download of reference evapotranspiration (eto) and rainfall (ppt) from 'TerraClimate' | 
| eto_calibration | Calibration of reference evapotranspiration (eto) of 'TerraClimate' | 
| loadROI | Load image data to do crop water demand | 
| monthly_stack | Function to calculate the mean monthly rainfall/reference evapotranspiration to generate the crop water demand | 
| plot_AWC | Function to plot the percentage of Available Water Capacity (AWC) | 
| ppt_calibration | Calibration of rainfall (ppt) of 'TerraClimate' | 
| see_brazil_biomes | Function to see the Brazilian biomes available tp use in download.terraclimate and loadROI function | 
| see_brazil_states | Function to see the Brazilian states available to use in download.terraclimate and loadROI function | 
| waterDemand | Function to generate the water demand based in available water capacity of the soil |