Hello, I'm currently implementing NetCDF capability for a Julia package, by
using the excellent [NCDatasets.jl][1] package. The data comes from inversion
models, and data from more than one model may be present in the file. I use an
ancillary variable with `standard_name` of `source` to store the model name at
each coordinate, following the [ancillary variables][2] guidelines. Next, I
also want to use a global attribute called `source` to store the list of all
model names.
>From section [2.6.2][3]:
> For readability in ncdump outputs it is recommended to embed newline
> characters into long strings to break them into lines.
I use an operation like this:
```
"source" => join(unique(table.model), ",\n")
```
where `table.model` is the list of model names (strings). However, in the
output of `ncdump -h` I see the raw newline codes:
```
:source = "GSRM v2.1,\nITRF2014 [2016],\nNNR-MORVEL56,\nGEODVEL
2010,\nMORVEL 2010,\nITRF2008,\nAPKIM2005-DGFI,\nAPKIM2005-IGN,\nGSRM
v1.2,\nCGPS 2004,\nREVEL 2000,\nITRF2000 (AS&B
[2002]),\nHS3-NUVEL1A,\nAPKIM2000.0,\nITRF2000 (D&A
[2001]),\nHS2-NUVEL1A,\nNUVEL 1A,\nNUVEL 1" ;
```
>From another NetCDF file I had on my hardrive (CF 1.0), I get an output like
>this:
```
:source = "CCSM3.0, version beta19 (2004): \n",
"atmosphere: CAM3.0, T85L26;\n",
"ocean : POP1.4.3 (modified), gx1v3\n",
"sea ice : CSIM5.0, T85;\n",
"land : CLM3.0, gx1v3" ;
```
Any clarification on how this should be done? I'm using `netcdf library version
4.8.1 of Oct 1 2021 20:26:26`.
[3]:
https://urldefense.us/v3/__http://cfconventions.org/Data/cf-conventions/cf-conventions-1.9/cf-conventions.html*description-of-file-contents__;Iw!!G2kpM7uM-TzIFchu!gC6LQePXfSetK6yDnTbS-dr3W-XL2Ac1MOph5u68GXtZWXLdeC45aY1TIpt6GCbJ5xtHX60hdFc$
[2]:
https://urldefense.us/v3/__http://cfconventions.org/Data/cf-conventions/cf-conventions-1.9/cf-conventions.html*ancillary-data__;Iw!!G2kpM7uM-TzIFchu!gC6LQePXfSetK6yDnTbS-dr3W-XL2Ac1MOph5u68GXtZWXLdeC45aY1TIpt6GCbJ5xtH9zKYzIU$
[1]:
https://urldefense.us/v3/__https://github.com/Alexander-Barth/NCDatasets.jl__;!!G2kpM7uM-TzIFchu!gC6LQePXfSetK6yDnTbS-dr3W-XL2Ac1MOph5u68GXtZWXLdeC45aY1TIpt6GCbJ5xtH7Hh7JuU$
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https://urldefense.us/v3/__https://github.com/cf-convention/cf-conventions/issues/347__;!!G2kpM7uM-TzIFchu!gC6LQePXfSetK6yDnTbS-dr3W-XL2Ac1MOph5u68GXtZWXLdeC45aY1TIpt6GCbJ5xtHGqqdkF0$
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