Using Landsat satellite data, scientists with the U.S. Geological Survey (USGS) have helped to refine a technique called evapotranspiration (ET) 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.
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.
U.S. Geological Survey, 2016, Mapping water use—Landsat and water resources in the United States: U.S. Geological Survey Fact Sheet 2016–3037, 2 p., http://dx.doi.org/10.3133/fs20163037.
ISSN: 2327-6932 (online)
Table of Contents
- Water-Use Mapping
- From Daily Glimpses to Long-Term Trends
- How Water-Use Maps Help
- Planning Today for Water Demand Tomorrow
- References Cited
Additional publication details
|Publication Subtype||USGS Numbered Series|
|Title||Mapping water use - Landsat and water resources in the United States|
|Series title||Fact Sheet|
|Publisher||U.S. Geological Survey|
|Publisher location||Reston, VA|
|Contributing office(s)||Earth Resources Observation and Science (EROS) Center|
|Online Only (Y/N)||Y|
|Additional Online Files (Y/N)||N|