The OMPS Aerosol Extinction Vertical Profile (11.5 - 12.5 km) layer indicates the average retrieved aerosol extinction coefficient at altitudes of 11.5 - 12.5 km above the tropopause in km-1 (or 1/km), as measured by the Limb Profiler (LP) sensor on the joint NASA/NOAA Suomi NPP satellite. The assumed tropopause height comes from the Goddard Earth Observing System Forward Processing for Instrument Teams (GEOS FP-IT) data product. The OMPS Aerosol Extinction Vertical Profile (11.5 - 12.5 km) layer is a science parameter of the OMPS-Suomi NPP LP Near real-time (NRT) Aerosol Extinction Vertical Profile swath multi-wavelength orbital 3slit product and the OMPS-NPP L2 LP Aerosol Extinction Vertical Profile swath daily 3slit (AER) product. It is available from the OMPS Limb Profiler (LP) sensor on the joint NASA/NOAA Suomi National Polar orbiting Partnership (Suomi NPP) satellite. Spatial coverage is global (-90 to 90 degrees latitude), and there are about 14.5 orbits per day each measuring three limb profiles spaced approximately 250 km in the cross-track direction. The profiles are measured from the ground up to about 80 km with a vertical resolution of the retrieved profiles of approximately 1.8 km. The temporal resolution is daily. A daily visualization from NASA's Global Imagery Browse Services (GIBS), available from 2013-11-25 and updated as new data arrive. Made from OMPS-NPP L2 LP Aerosol Extinction Vertical Profile swath daily 3slit V2 (OMPS_NPP_LP_L2_AER_DAILY) (OMPS_NPP_LP_L2_AER_DAILY, version 2, doi:10.5067/CX2B9NW6FI27).