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Hi Joe, GDRADR can accept any supported NEXRAD product, including N1P (one hour precip), but I'm not sure about OPA (high-red 1 hr precip), but I wil be able to check in the next week when I return from vacation. GDRADR produces a GEMPAK grid file, and grid size is specified as a standard input for the program. Please refer to the GDRADR man page located at http://www.unidata.ucar.edu/cgi-bin/gempak/manual/programs_index?gdradr Similar programs convert NEXRAD data into gini files (NEX2GINI) and GIF images (NEX2IMG). -Michael James Unidata Program Center > Hi, > > I was looking over the information on > > http://www.unidata.ucar.edu/software/gempak/examples/gdradr/ > > and was wondering could I make one hour precipitation maps with this > program? > > Also are the files produced data or image files, or either? I'm > interested in the data. > > Also, can I specify the grid size? > > Thanks, > > Joe Pietrowicz, Ph.D. > Senior Research Scientist > ZedX, Inc > 369 Rolling Ridge Drive > Bellefonte, PA 16823 > Ticket Details =================== Ticket ID: KZC-735485 Department: Support GEMPAK Priority: Normal Status: Open