Hi- I was hoping for some wisdom on reading in 5 minute data and running a time to space conversion of surface data. this is from Koch and O'Handley 1997 WAF 12 2 253-281. In the oawfsr.f program I would need to change the weighting function. the weighting function would need to subract (delta t/tau)^2. tau is a constant if we assume that the data is in a specific format (say 5 minutes) so then is delta t. The issue is then how does gempak read in the data? In this case, gempak would have to read in +/- 45 minutes worth of data in order to perform the analysis at one time. I guess a loop over time with the current time being the reference. do you have any advice on if changing the weighting function program and oabsfc.f will hinder other gempak programs? thanks for any help... -- James Correia Jr -------------------------------------------------- PhD candidate Ag Met Iowa State University phone: 515-294-5587 email: address@hidden http://www.mesoscale.iastate.edu/jimmyc/index.html -------------------------------------------------- All normal people love meat. If I went to a barbeque and there was no meat, I would say 'Yo Goober! Where's the meat!?'. I'm trying to impress people here Lisa. You don't win friends with salad. --the other Homer "I have no special talent. I am only passionately curious." --Einstein