thank u for your detailed explanation my study area is at 390 msl and Bangalore is at 900 msl. I tried to access data from NCEP-NCARCFSR but i was not able to get the data for my location 14.3185868/78.272926 because of my incompetence!!!!!!!!
I had run AERMOD and CALPUFF ,have the mixing heights for the location with me.I wanted to evaluate
At GADANKI village near Tirupati approximately about 40 KM distance there is an excellent Institute called NARL they do quality research on atmosphere and including Radiosondes launches periodically.Check with them for some help.