The researchers compared different soil moisture data sources to see how well they match up. They used a method called geostatistics to analyze the data. They found that the AGRMET and WindSAT soil moisture products were pretty close to the in-situ OK Mesonet data. The average error in estimating soil moisture at certain locations was only 3.5% of the actual value. This study helps us understand how soil moisture varies across different landscapes and how we can use satellite data to map it accurately.