The OMPS Sulfur Dioxide (Middle Troposphere) layer indicates the column density of sulfur dioxide in the middle troposphere (corresponding to 7.5 km center of mass altitude (CMA)) and is measured in Dobson Units (DU). This layer can be used in studies on moderate eruptions and long-range transport of sulfur pollution.

The OMPS Sulfur Dioxide (SO2) Middle Troposphere layer is a science parameter of the Ozone Mapping and Profiler Suite (OMPS)-NPP L2 NM Sulfur Dioxide (SO2) Total and Tropospheric Column swath orbital collection 2 version 2.0 product. It is available from the OMPS Nadir-Mapper (NM) sensor on the joint NASA/NOAA Suomi-National Polar orbiting Partnership (Suomi-NPP) satellite. The sensor resolution is 25 km, imagery resolution is 2 km, and the temporal resolution is daily.

References: NMSO2-PCA-L2-NRT