This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
Jeff, GEMPAK does all the calculations in SI units. Display is dependent on the user specifiction. For example, P06M is precipitation in millimeters, while P06I is precipitation in inches. The primary unit conversion for grids being decoded is to store pressure values in millibars by convention (eg **-2) instead of Pascals though you can always scale the units back to Pa for plots. Do you have a specific value you are trying to interpret? Steve Chiswell Unidata User Support > Does GEMPAK support metric units? More specifically, does NMAP2 > support metric units? Thanks! > > Jeffrey M. Vukovich > Senior Research Scientist > Baron Advanced Meteorological Systems > 920 Main Campus Drive > Suite 101 > Raleigh, NC 27606 > Phone: (919) 424-4442 > Mobile: (256) 541-4138 > Fax: (919) 424-4401 > Email: address@hidden > > Ticket Details =================== Ticket ID: OLD-938565 Department: Support GEMPAK Priority: Normal Status: Closed