New Retrieval Techniques Enables Sensitive Measurements of Tropospheric NO2 and SO2 from Suomi NPP OMPS

Friday, 19 December 2014: 3:10 PM
Kai Yang1, Simon A Carn2, Cui Ge3, Jun Wang3 and Russell R Dickerson1, (1)University of Maryland College Park, College Park, MD, United States, (2)Michigan Technological University, Houghton, MI, United States, (3)University of Nebraska Lincoln, Lincoln, NE, United States
We describe recent advances in retrieval techniques that improve the measurements of tropospheric NO2 and SO2 from space. We apply these new techniques to the observations of OMPS Nadir Mapper, flying on the Suomi NPP spacecraft since October 2011. The results demonstrate the unexpected capabilities of OMPS, which are enabled by the algorithmic advances. OMPS is providing sensitive measurements of air pollutants over the globe, with sensitivities similar to those achieved with Aura/OMI. The NO2 and SO2 data from SNPP/OMPS have sufficient quality to continue and extend NASA’s long-term EOS NO2 and SO2 data records, and can be used to monitor daily air pollution and identify anthropogenic sources of NOand SO2.