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[IDV #QPU-548169]: IDV says no "usable time axis" but Panoply can open it

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  • Subject: [IDV #QPU-548169]: IDV says no "usable time axis" but Panoply can open it
  • Date: Mon, 14 Sep 2020 10:17:01 -0600
> Dear Yuan,
> 
> Hi Yuan.
> 
> Panoply 4.1.1 can open this URL and display the date correctly.
> https://opendap.nccs.nasa.gov/dods/GEOS-5/fp/0.25_deg/assim/inst3_2d_asm_Nx
> 
> IDV cannot, “coordinate system does not have a usable time axis”.
> 
> 
> I see that the time units are "days since 1-1-1 00:00:0.0” which is 
> incorrect. But how can Panoply do it? That also uses Java-netcdf libraries, 
> right?
> 
> The actual time units are clear, but I see how the units string would mess it 
> up:
> grads_min: "00z01dec2017"
> grads_step: "180mn"
> units: "days since 1-1-1 00:00:0.0"
> minimum: “00z01dec2017”
> 
> I made a lot of traffic in the nasa support tickets, but maybe the problem is 
> really IDV??
> Brian
> 
> 
> 
> [cid:92975632-66F7-4DA0-82CC-F27811C90B9C@hsd1.co.comcast.net]
> 
> 
> 
> Brian Mapes
> address@hidden
> 
> 
> 
> 
Hi Brian,

I think you are right, it is the problem of the IDV, or more specifically the 
netCDF-Java library. If
you rung IDV 5.5, you can load and display this dataset as gridded data or 
GrADS binary file. I will check
with Sean to see what is the problem here.

Thanks for reporting this bug.

Yuan

Ticket Details
===================
Ticket ID: QPU-548169
Department: Support IDV
Priority: Normal
Status: Open
===================
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