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 Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated.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.
> Greetings, > > I am gathering information on different radar display software to get an idea > of which use the 4/3rds Earth approximation in their tools/algorithms to find > range and height from the radar. I have been trying to find some information > about the use of the 4/3rds Earth approximation within IDV through the > available online documentation, but have been unsuccessful. Does WDSS-II use > the 4/3rds Earth approximation within its suite of tools/algorithms? > > Many Thanks! > Chris > Hi Chris, The IDV didn't use the 4/3rds Earth approximation. However, I am opened to more discuss on adding this approximation to the IDV. Yuan > > /**************************************/ > Chris J. Theisen > > Regional Weather Information Center > University of North Dakota > 3980 Campus Rd Stop 9007 > Grand Forks, ND 58202-9007 > > Ph: (701) 777-6139 > Email: address@hidden<mailto:address@hidden> > /**************************************/ > > > Ticket Details =================== Ticket ID: BBM-718062 Department: Support IDV Priority: Normal Status: Open