New Delhi: To monitor stubble burning, scientists use satellites in Sun synchronous polar orbits such the Suomi-NPP operated by NASA and the US National Oceanic and Atmospheric Administration (NOAA). Satellites in such orbits image the Earth in consistent lighting conditions, following the path of the Sun across the sky. This allows for easy comparison across the images captured over many orbits. These satellites have a high spatial resolution, but a low temporal one. Last year, NASA remote sensing scientist Hiren Jethva suggested that farmers were burning stubble after the passage of the satellites to dodge surveillance, a claim that was

© News9Live