Night-Time Detection of Subpixel Emitters with VIIRS Mid-Wave Infrared Bands M12–M13
Payne Institute Earth Observation Group Research Associate Mikhail Zhizhin, Director Christopher D. Elvidge and Alexey Poyda talk about a new approach to subpixel infrared (IR) emitter detection in VIIRS mid-wave (MWIR) infrared bands M12–M13 at night, based on the presence of a tightly clustered background diagonal present in full granule scattergrams of M12 versus M13 radiances. This diagonal is found universally in night-time VIIRS data collected worldwide. The diagonal feature is absent during the day due to solar reflectance. The existence of the diagonal is attributed to close spacing in the bandpass centers of the VIIRS’ two MWIR bands. Februay 21, 2023.