Direct measurements of soil moisture at three ground stations in selected study areas were used to validate the remote sensing data and the estimates made in this study. Soil moisture in these stations is recorded at different soil depths and on weekly, daily, and hourly time scales. However, since the data and remote sensing methods used in this study estimate the soil moisture at a depth of 5 cm of the soil, only data recorded at a depth of 5 cm were used for validation. In statistical evaluations, the passing days of Terra satellite (MODIS sensor) were selected as the criterion and other observational data and remote sensing data were selected only for the selected 8-day time series from MODIS sensor images. The specifications of the selected stations and the statistical year of each station are given in Table 1.