I’m doing research requiring daily total SO2 column data as inputs to a radiative transfer model (TUV) at one site
(Billings, Oklahoma, Bounding Box:,"-97.495,36.595,-97.485,36.605"). I found the data/plot was published on the Giovanni
website (http://giovanni.gsfc.nasa.gov). The data product I chose was “SO2 Column Amount (Planetary Boundary Layer)
OMSO2e v003 (OMSO2e v003)”. The time range was from 2004-10-01 to 2016-12-15. I have two questions about the SO2 data. (1) Is there another daily total column SO2 data from OMI? Was I looking at the wrong data product? (2) OMSO2e v003 data had a lot of negative values with mean value close to 0 (plot attached). Is it correct?
Is there any procedure I should follow before using it?