An Unprecedented View of Earth

NISAR's data can help people worldwide better manage natural resources and hazards, as well as providing information for scientists to better understand the effects and pace of climate change. It will also add to our understanding of our planet's hard outer layer, called its crust.

Early Engagement

Interested in learning more about NISAR and becoming more involved? The NISAR team has workshops, working groups and other activities designed to inform and expand the NISAR user community.

Featured Applications White Papers

  • Sinkholes and Cavern Collapse

    Sinkholes are not just a Florida phenomenon but can occur in any of the 50 U.S. states. Some sinkholes will experience relatively small ground movement prior to their abrupt collapse - NISAR imaging will enable detection of some cases where movement started days before collapse.

  • Fire Management

    Fires are crucial to many ecosystems, yet often threaten developed urban areas, protected lands and regional air quality. Categorizing fire danger, detecting fires, identifying area burned and quantifying the severity of fires is critical for mitigating the impacts of fire.

  • Oil Spills

    Every year, emergency responders work to prevent hundreds of oil and chemical spills from harming people and the environment. Rapid identification of spilled oil in the vast open waters of the oceans and gulf is key to minimizing damage, and radar remote sensing can provide the necessary information.

NISAR will be the first radar of its kind in space to systematically map Earth, using two different radar frequencies (L-band and S-band) to measure changes in our planet's surface less than a centimeter across. Synthetic aperture radar (SAR) refers to a technique for producing fine-resolution images from a resolution-limited radar system.

NASA partnership with the Indian Space Research Organization (ISRO)

NISAR is a joint Earth-observing mission between NASA and the Indian Space Research Organization (ISRO). NASA and ISRO are providing two radars that are optimized each in their own way to allow the mission to observe a wider range of changes than either one alone.