Rebecca L. Johnson 2016 <p>Using Landsat satellite data, scientists with the U.S. Geological Survey have helped to refine a technique called evapotranspiration mapping to measure how much water crops are using across landscapes and through time. These water-use maps are created using a computer model that integrates Landsat and weather data.</p><p>Crucial to the process is the thermal (infrared) band from Landsat. Using the Landsat thermal band with its 100-meter resolution, water-use maps can be created at a scale detailed enough to show how much water crops are using at the level of individual fields anywhere in the world.&nbsp;</p> application/pdf 10.3133/fs20163037 en U.S. Geological Survey Mapping water use—Landsat and water resources in the United States reports