John: Ok, I've run the job that contours gcm along the orbit track for all 14 of the pcxxx data files. I contoured 12 fields for each data file: TN O2 CO CO2 H2O CH4 NO O3 O1 OH H N2 These are fairly dense plots because the number of points on the x axes is often nearly 1000. So the postscript files are large, typically 3 to 5+ Mb. There are 14 such files, each containing 12 frames (1 frame for each field). There's not enough disk space on hao to store all 14 ps files in the ftp/pub directory, so if you want all of them we could arrange to do it one or two files at a time. I have stored the ps files on the ncar mss, so we can do this anytime -- it would take a few minutes to get each file down from the mss and put it on the ftp disk. Let me know what you want to do... --Ben