very welcome.
the ncml, if you arent familiar with it, is a way to quickly try changes to
the metadata.
BTW, grid_north_pole_longitude = 180.0 may be a mathematically degenerate
case, giving spurious results. something to look at closer. perhaps Martin
knows?
On Thu, Jun 30, 2022 at 6:41 AM andrea antonello <andrea.antonello@xxxxxxxxx>
wrote:
>
>> looks like another mistake encoding the projection parameters
>>
>> this ncml (grid_north_pole_longitude =0.0 not 180
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/ncml-2.2";
>>
>> location="02_tas_AFR-22_CCCma-CanESM2_rcp85_r1i1p1_CCCma-CanRCM4_r2_day_20510101-20551231.nc">
>>
>> <variable name="rotated_pole" shape="" type="char">
>> <attribute name="grid_mapping_name" value="rotated_latitude_longitude"
>> />
>> <attribute name="grid_north_pole_longitude" type="float" value="0.0" />
>> <attribute name="grid_north_pole_latitude" type="float" value="90.0" />
>> </variable>
>>
>> </netcdf>
>>
>> gives the attached picture
>>
>
> You are definitely right. I missed the knowledge to see that, thank you.
> So in the end every single issue was a data encoding issue. Guess one
> needs to get an eye to spot these things.
>
> Thank you very much for the help John.
>
> Regards,
> Andrea
>
>
>
>>
>> On Wed, Jun 29, 2022 at 6:15 AM andrea antonello <
>> andrea.antonello@xxxxxxxxx> wrote:
>>
>>> Hello Martin,
>>>
>>>>
>>>> Do you have a MD5 sum or SHA1 sum for the "03_tas_EUR-(…snip…).nc" file
>>>> on https://we.tl/t-ui4CZmQ0pS ? I tried to download the file twice,
>>>> but
>>>> when I try to read it using UCAR library 5.5.3 I got a
>>>> "java.util.zip.ZipException: incorrect data check" error (it seems to
>>>> come from JDK itself, not from UCAR).
>>>>
>>>
>>> I do not have any checksum, I also got the data sent to.
>>> This is the md5 sum created with md5sum linux
>>> command: e1e7c285593e0861fd8bbc5cc00672bf
>>>
>>> I tried to download it again and analyze it with the 5.5.3 libraries and
>>> it works without issues.
>>>
>>> Thanks,
>>> Andrea
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>>
>>>> Martin
>>>>
>>>>
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