[ncl-talk] modifying header info in a netcdf file
Rick Brownrigg
brownrig at ucar.edu
Fri Jun 7 09:59:36 MDT 2019
Hi,
>From the file dump, I don't see where any of the variables incorporate a
time dimension, so its not clear what would be the value of adding a time
dimension to the file?
Rick
On Fri, Jun 7, 2019 at 8:57 AM Manisha Ganeshan <
manisha.ganeshan86 at gmail.com> wrote:
> Here's the output from ncl_filedump.
>
> Variable: f
>
> Type: file
>
> filename: 3B-DAY-L.MS.MRG.3IMERG.20190222-S000000-E235959.V05
>
> path: 3B-DAY-L.MS.MRG.3IMERG.20190222-S000000-E235959.V05.nc4
>
> attributes:
>
> BeginDate : 2019-02-22
>
> BeginTime : 00:00:00.000Z
>
> EndDate : 2019-02-22
>
> EndTime : 23:59:59.999Z
>
> FileHeader : StartGranuleDateTime=2019-02-22T00:00:00.000Z;
>
> StopGranuleDateTime=2019-02-22T23:59:59.999Z
>
> InputPointer :
> 3B-HHR-L.MS.MRG.3IMERG.20190222-S000000-E002959.0000.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S003000-E005959.0030.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S010000-E012959.0060.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S013000-E015959.0090.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S020000-E022959.0120.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S023000-E025959.0150.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S030000-E032959.0180.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S033000-E035959.0210.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S040000-E042959.0240.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S043000-E045959.0270.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S050000-E052959.0300.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S053000-E055959.0330.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S060000-E062959.0360.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S063000-E065959.0390.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S070000-E072959.0420.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S073000-E075959.0450.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S080000-E082959.0480.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S083000-E085959.0510.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S090000-E092959.0540.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S093000-E095959.0570.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S100000-E102959.0600.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S103000-E105959.0630.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S110000-E112959.0660.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S113000-E115959.0690.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S120000-E122959.0720.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S123000-E125959.0750.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S130000-E132959.0780.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S133000-E135959.0810.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S140000-E142959.0840.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S143000-E145959.0870.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S150000-E152959.0900.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S153000-E155959.0930.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S160000-E162959.0960.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S163000-E165959.0990.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S170000-E172959.1020.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S173000-E175959.1050.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S180000-E182959.1080.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S183000-E185959.1110.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S190000-E192959.1140.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S193000-E195959.1170.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S200000-E202959.1200.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S203000-E205959.1230.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S210000-E212959.1260.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S213000-E215959.1290.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S220000-E222959.1320.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S223000-E225959.1350.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S230000-E232959.1380.V05B.HDF5;3B-HHR-L.MS.MRG.3IMERG.20190222-S233000-E235959.1410.V05B.HDF5
>
> title : GPM Level 3 IMERG Late Daily 0.1 x 0.1 degree
> Precipitation
>
> ProductionTime : 2019-02-23T13:46:08.485Z
>
>
> dimensions:
>
> lon = 3600
>
> lat = 1800
>
>
> chunk dimensions:
>
> lon = 3600
>
> lat = 900
>
>
> variables:
>
> precipitationCal: <float> [ 3600 <lon>, 1800 <lat> ]
>
> Chunking Info: [ 3600 <lon>, 900 <lat> ]
>
> attributes:
>
> units : mm
>
> long_name : Daily accumulated precipitation (combined
> microwave-IR) estimate
>
> coordinates : lat lon
>
> _FillValue : -9999.900391
>
>
> precipitationCal_cnt: <byte> [ 3600 <lon>, 1800 <lat> ]
>
> Chunking Info: [ 3600 <lon>, 900 <lat> ]
>
> attributes:
>
> units : count
>
> long_name : Count of valid half-hourly
> precipitationCal retrievals for the day
>
> coordinates : lat lon
>
>
> HQprecipitation: <float> [ 3600 <lon>, 1800 <lat> ]
>
> Chunking Info: [ 3600 <lon>, 900 <lat> ]
>
> attributes:
>
> units : mm
>
> long_name : Daily accumulated High Quality
> precipitation from all available MW sources
>
> coordinates : lat lon
>
> _FillValue : -9999.900391
>
>
> HQprecipitation_cnt: <byte> [ 3600 <lon>, 1800 <lat> ]
>
> Chunking Info: [ 3600 <lon>, 900 <lat> ]
>
> attributes:
>
> units : count
>
> long_name : Count of valid half-hourly
> HQprecipitation retrievals for the day
>
> coordinates : lat lon
>
>
> randomError: <float> [ 3600 <lon>, 1800 <lat> ]
>
> Chunking Info: [ 3600 <lon>, 900 <lat> ]
>
> attributes:
>
> units : mm
>
> long_name : Daily total error of precipitation
> estimate
>
> coordinates : lat lon
>
> _FillValue : -9999.900391
>
>
> randomError_cnt: <byte> [ 3600 <lon>, 1800 <lat> ]
>
> Chunking Info: [ 3600 <lon>, 900 <lat> ]
>
> attributes:
>
> units : count
>
> long_name : Count of valid half-hourly randomError
> retrievals for the day
>
> coordinates : lat lon
>
>
> lon: <float> [ 3600 <lon> ]
>
> attributes:
>
> units : degrees_east
>
> long_name : Longitude
>
>
> lat: <float> [ 1800 <lat> ]
>
> attributes:
>
> units : degrees_north
>
> long_name : Latitude
>
> On Fri, Jun 7, 2019 at 10:33 AM Manisha Ganeshan <
> manisha.ganeshan86 at gmail.com> wrote:
>
>> Hello,
>>
>> I have netcdf files with incomplete information in the header.
>> It has latitude and longitude, but is missing the time dimension.
>> I'm wondering if there's an quick way to modify just the header of a
>> netcdf file to add *time = xxx *under dimensions?
>> I don't want to modify anything else.
>>
>> Regards,
>> Nisha
>> --
>> Dr. Manisha Ganeshan
>> Universities Space Research Association
>> Maryland, U.S.A.
>>
>
>
> --
> Dr. Manisha Ganeshan
> Universities Space Research Association
> Maryland, U.S.A.
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