When I was researching the topic I came across this: > When I try and load the file using Ferret, this throws a warning.. Which > makes me think I¹m not doing things correctly: > > Ferret v6.93 > yes? use file.nc > *** NOTE: Axis definition error on axis: time. Bounds describe cells that > overlap one another
which made me think that overlap was an error. But reading more context I see it is just a “note”, not an “error”, and clearly overlapping bounds are accepted. For my situation of overlapping vertical trapezoids, I now think I should use the full overlapping extent in the “bounds” variable and explain the full shape of the trapezoids in the main variable’s description attribute. Is there a better way to communicate the full situation? -- Evan From: Jim Biard <[email protected]> Date: Friday, March 3, 2017 at 5:09 AM To: <[email protected]> Subject: Re: [CF-metadata] Overlapping vertical bounds What makes you think overlapping bounds are illegal? On 3/2/17 7:20 PM, Manning, Evan M (398B) wrote: I have some quantities which are defined on trapezoids in the vertical direction. For example the top trap might be full weight from the top of the atmosphere (TOA) to 50 hPa, then we ramp linearly between the first and second traps between 50 & 75 hPa, then trap 2 is full weight 75-100 hPa, followed by another transition in [100, 125] hPa, etc. I can’t have a bounds variable with the full extent of each trap like [ [0, 75], [50, 125], [100, … because overlap is illegal. I could have underlap, just giving the intervals where each trap is in full force: [ [0, 50], [75, 100], … Or I could use the midpoints of the transitions: [ [ 0, 62.5], [62.5, 112.5], … I’d prefer to find a standard way to communicate the precise situation. Is there one? -- Evan _______________________________________________ CF-metadata mailing list [email protected]<mailto:[email protected]> http://mailman.cgd.ucar.edu/mailman/listinfo/cf-metadata -- [ICS-NC]<http://www.cicsnc.org/>Visit us on Facebook <http://www.facebook.com/cicsnc> Jim Biard Research Scholar Cooperative Institute for Climate and Satellites NC <http://cicsnc.org/> North Carolina State University <http://ncsu.edu/> NOAA National Centers for Environmental Information <http://ncdc.noaa.gov/> formerly NOAA’s National Climatic Data Center 151 Patton Ave, Asheville, NC 28801 e: [email protected]<mailto:[email protected]> o: +1 828 271 4900 Connect with us on Facebook for climate<https://www.facebook.com/NOAANCEIclimate> and ocean and geophysics<https://www.facebook.com/NOAANCEIoceangeo> information, and follow us on Twitter at @NOAANCEIclimate<https://twitter.com/NOAANCEIclimate> and @NOAANCEIocngeo<https://twitter.com/NOAANCEIocngeo>.
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