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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
James, > The Dobson Unit is the most common unit for measuring ozone concentration. > > 1 Dobson Unit (DU) is defined to be 0.01 mm thickness at STP. > > 1 DU ~ 2.69E+20 molecules per square meter I've added the unit "dobson" (symbol "DU") to the UDUNITS-2 package that I hope to release relatively soon. If you want to add the unit to your existing UDUNITS package, then I suggest using the following entries dobson P (2.69e20/6.022e23) mole/meter2 DU S dobson Regards, Steve Emmerson Ticket Details =================== Ticket ID: XPL-147330 Department: Support UDUNITS Priority: Normal Status: Closed