[ncl-talk] 0.0 not currently supported as a missing value

[Mary Haley]

Just an FYI (I'm weighing in a little late).

I wanted to point out the web page we have on common NCL errors and
warnings:

http://www.ncl.ucar.edu/Document/Language/error_messages.shtml

This page contains error and warning messages that one may see with NCL,
how the error is caused, and how to fix it or work around it.

This particular error was not part of that page, so I added it:

http://www.ncl.ucar.edu/Document/Language/error_messages.shtml#ZeroMissingValue

--Mary


On Fri, May 4, 2018 at 1:40 PM, Kunal Bali <kunal.bali9 at gmail.com> wrote:

> Thanks, It worked.
>
>
> ---
> Kunal Bali
>
>
>
>
>
> On Sat, May 5, 2018 at 1:05 AM, Adam Phillips <asphilli at ucar.edu> wrote:
>
>> Hi Kunal,
>> You can simply reassign the _FillValue:
>> totc at _FillValue = 1.e20
>> totc at missing_value = totc at _FillValue
>>
>> Note that NCL ignores the missing_value attribute, and only pays
>> attention to _FillValue.
>> Adam
>>
>> On Fri, May 4, 2018 at 1:26 PM, Kunal Bali <kunal.bali9 at gmail.com> wrote:
>>
>>> Dear NCL users,
>>>
>>> Could anyone please let me know how can I ignore/correct the given
>>> warning. I am able to plot the data but facing this warning (below in red).
>>>
>>>
>>> Variable: totc
>>>
>>> Type: float
>>>
>>> Total Size: 1584000 bytes
>>>
>>>             396000 values
>>>
>>> Number of Dimensions: 2
>>>
>>> Dimensions and sizes: [lat | 660] x [lon | 600]
>>>
>>> Coordinates:
>>>
>>>             lat: [5.024999999999991..37.97499999999999]
>>>
>>>             lon: [68.02500000000001..97.97500000000002]
>>>
>>> Number Of Attributes: 16
>>>
>>>   time : 1491004800
>>>
>>>   standard_name : lst_day_cmg
>>>
>>>   long_name : Monthly daytime 3min CMG Land-surface Temperature
>>>
>>>   units : K
>>>
>>>   _FillValue : 0
>>>
>>>   missing_value : 0
>>>
>>>   LST : LST data * scale_factor
>>>
>>>   Number_Type_Orig : uint16
>>>
>>>   add_offset_err :   0
>>>
>>>   calibrated_nt : 0
>>>
>>>   orig_add_offset :   0
>>>
>>>   orig_scale_factor : 0.02
>>>
>>>   product_short_name : MYD11C3
>>>
>>>   product_version : 006
>>>
>>>   quantity_type : Surface Temperature
>>>
>>>   scale_factor_err :   0
>>>
>>> warning:ContourPlotInitialize: 0.0 not currently supported as a missing
>>> value; expect inaccurate plot
>>>
>>>
>>>
>>> regards
>>> ---
>>> Kunal Bali
>>>
>>>
>>>
>>>
>>>
>>>
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>>>
>>
>>
>> --
>> Adam Phillips
>> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
>> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>>
>> <http://www.cgd.ucar.edu/staff/asphilli>
>>
>
>
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