As the climate of our home planet changes, some places are drying out and others are getting wetter, including the land that produces the food we eat. Farmers are learning how to adapt to changing climate conditions.
NASA's fleet of satellites has been watching over Earth for more than half a century, collecting valuable data about the crops that make up our food supply and the water it takes to grow them. This wealth of information allows scientists to monitor farmland – tracking the overall food supply, where specific crops are grown, and how much water it takes to grow them with data from the Landsat satellites and others. And with that data, farmers can find new ways to grow more crops with less water.
As our climate changes, it’s more important than ever for farmers to have the knowledge they need to adapt their farming practices to a warming world. The data collected by our Earth-observing fleet helps farmers learn about the planet that sustains us – and make better decisions about how to cultivate it.
The Landsat Program is a series of Earth-observing satellite missions jointly managed by NASA and the USGS. Landsat satellites have been consistently gathering data about our planet since 1972. They continue to improve and expand this unparalleled record of Earth's changing landscapes for the benefit of all.
GCMD keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0