Tropospheric ozone satellite datasets from NASA Goddard Space Flight Center Code 614

Data files with *.nc format represent monthly-mean tropospheric column ozone (TCO) in DU for the specificed time record in the filename. The data are for EPIC/MERRA2, OMI/MLS, OMPS/MERRA2 tropospheric ozone at both 1degX1deg and 5degX5deg horizontal resolution. The CCD *.txt file is an ASCII text file and is also monthly-mean TCO but for only 5degX5deg resolution. 1degX1deg gridded files: lats(deg)=-89.5, -88.5, ...., 89.5 lons(deg)=-179.5, -178.5, ..., 179.5 5degX5deg gridded *.nc files: lats(deg)=-87.5, -82.5, ..., 87.5 lons(deg)=-177.5, -172.5, ...., 177.5 5degX5deg CCD *.txt file: lats(deg)=-27.5, -22.5, ..., 27.5 lons(deg)=-177.5, -172.5, ...., 177.5