The OMI UltraViolet (UV) Index layer displays the UV index at local solar noon and is a unitless quantity. The OMUVBd UV Index is determined from the OMI retrieved measurement of the surface UV irradiance at local solar noon.

The Ozone Monitoring Instrument (OMI) Level-3 UV (OMUVBd) product provides daily gridded global coverage with a temporal resolution of 1 day, imagery resolution of 2 km and sensor/algorithm resolution of 1.0 x 1.0 degrees.

References: OMUVBd README; DOI: 10.5067/Aura/OMI/DATA3009