Black areas are regions with no satellite coverage.
This data is available at half-hourly intervals. You now have the choice of looking either a single image, or an animation. A global infrared mosaic image is available. The primary mission of the OTD instrument is to improve the understanding of thunderstorm distributions, cloud processes, and storm variablity by detecting and locating lightning activity. The MSU's have been continuously operating for more than 15 years, collecting measurements of the thermal emission of radiation by molecular oxygen at four frequencies near 60 GHz.