[ncl-talk] Reading .h5 file with NCL
Wei Huang
huangwei at ucar.edu
Wed Aug 27 13:19:14 MDT 2014
Partha,
Try to read it as HE5 data.
If you still have problem, then send us the dataset.
Thanks,
Wei
================================================
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Boulder, CO 80307
Phone: 303-497-8924
On Wed, Aug 27, 2014 at 9:49 AM, Partha Bhattacharjee <pbhatta2 at jhu.edu>
wrote:
> Dear NCL,
>
>
> I am trying to read. h5 file with ncl 6.2.0 version in Red Hat
> Linux x86_64 system. ncl_filedump reveal the following about the file :
>
>
>
> Variable: f
> Type: file
> filename:
> VAOOO_npp_d20140501_t0000514_e0002156_b12990_c20140501064516522509_noaa_ops
> path:
> VAOOO_npp_d20140501_t0000514_e0002156_b12990_c20140501064516522509_noaa_ops.h5
> file global attributes:
> Distributor : arch
> Mission_Name : NPP
> N_Dataset_Source : noaa
> N_GEO_Ref :
> GAERO_npp_d20140501_t0000514_e0002156_b12990_c20140501064516522509_noaa_ops.h5
> N_HDF_Creation_Date : 20140501
> N_HDF_Creation_Time : 064516.522509Z
> Platform_Short_Name : NPP
> dimensions:
> DIM_000 = 20
> DIM_001 = 96
> DIM_002 = 400
> DIM_003 = 2
> variables:
> group </All_Data>
>
>
> group </All_Data/VIIRS-Aeros-EDR_All>
>
>
> float AerosolOpticalDepthFactors ( DIM_003 )
>
> ushort AerosolOpticalDepth_at_1240nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_1610nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_2250nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_412nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_445nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_488nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_550nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_555nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_672nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_746nm ( DIM_001, DIM_002 )
>
> ushort AerosolOpticalDepth_at_865nm ( DIM_001, DIM_002 )
>
> ushort AngstromExponent ( DIM_001, DIM_002 )
>
> float AngstromExponentFactors ( DIM_003 )
>
> ubyte QF1_VIIRSAEROEDR ( DIM_001, DIM_002 )
>
> ubyte QF2_VIIRSAEROEDR ( DIM_001, DIM_002 )
>
> ubyte QF3_VIIRSAEROEDR ( DIM_001, DIM_002 )
>
> ubyte QF4_VIIRSAEROEDR ( DIM_001, DIM_002 )
>
> ubyte QF5_VIIRSAEROEDR ( DIM_001, DIM_002 )
>
> ubyte SmallModeFraction ( DIM_001, DIM_002 )
>
> group </Data_Products>
>
>
> group </Data_Products/VIIRS-Aeros-EDR>
>
> Instrument_Short_Name : VIIRS
> N_Anc_Type_Tasked : Official
> N_Collection_Short_Name : VIIRS-Aeros-EDR
> N_Dataset_Type_Tag : EDR
> N_Instrument_Flight_SW_Version : 20
> N_Processing_Domain : ops
> Operational_Mode : NPP Normal Operations, VIIRS Operational
>
> none VIIRS_Aeros_EDR_Aggr ( DIM_000 )
> AggregateBeginningDate : 20140501
> AggregateBeginningGranuleID : NPP000795744508
> AggregateBeginningOrbitNumber : 12990
> AggregateBeginningTime : 000051.486918Z
> AggregateEndingDate : 20140501
> AggregateEndingGranuleID : NPP000795744508
> AggregateEndingOrbitNumber : 12990
> AggregateEndingTime : 000215.662554Z
> AggregateNumberGranules : 1
>
> none VIIRS_Aeros_EDR_Gran_0 ( DIM_000 )
> Ascending/Descending_Indicator : <ARRAY of 0 elements>
> Beginning_Date : 20140501
> Beginning_Time : 000051.486918Z
> East_Bounding_Coordinate : 33.245
> Ending_Date : 20140501
> Ending_Time : 000215.662554Z
> G-Ring_Latitude : ( -36.52, -34.1314, -31.8427, -35.682,
> -37.0385, -39.4876, -42.0644, -40.6345 )
> G-Ring_Longitude : ( -2.8678, -1.50608, -0.286205, 15.9487,
> 33.245, 33.0852, 32.9682, 14.3572 )
> N_Algorithm_Version : 1.O.000.008
> N_Anc_Filename :
> Terrain-Eco-ANC-Tile_20030125000000Z_ee00000000000000Z_NA_NA_S0470_1.O.0.0
> N_Aux_Filename :
> VIIRS-AOT-LUT_npp_20020101010000Z_20020101010000Z_ee00000000000000Z_PS-1-D-NPP-3-PE-_devl_dev_all-_all
> N_Beginning_Orbit_Number : 12990
> N_Beginning_Time_IET : 1777593686486918
> N_Creation_Date : 20140501
> N_Creation_Time : 011922.871045Z
> N_Day_Night_Flag : Night
> N_Ending_Time_IET : 1777593770662554
> N_Graceful_Degradation : No
> N_Granule_ID : NPP000795744508
> N_Granule_Status : 100% night for day only product
> N_Granule_Version : A1
> N_Input_Prod : 53619fde-b97c9-0a180227-5d84d17e
> N_LEOA_Flag : Off
> N_NPOESS_Document_Ref :
> 474-00001-04-02_JPSS-CDFCB-X-Vol-IV-Part-2_0124B_I1.5.08.03.pdf
> N_Nadir_Latitude_Max : -35.7285
> N_Nadir_Latitude_Min : -40.5782
> N_Nadir_Longitude_Max : 15.9386
> N_Nadir_Longitude_Min : 14.3732
> N_Number_Of_Scans : 48
> N_Percent_Erroneous_Data : 0
> N_Percent_Missing_Data : 0
> N_Percent_Not-Applicable_Data : 0
> N_Quality_Summary_Names : Aerosol AOT Exclusion Summary
> N_Quality_Summary_Values : ( 100, 100, 100, 100, 0, 0 )
> N_Reference_ID : 5361a11a-d4a65-0a180228-5d868537
> N_Satellite/Local_Azimuth_Angle_Max : 179.993
> N_Satellite/Local_Azimuth_Angle_Min : -179.999
> N_Satellite/Local_Zenith_Angle_Max : 70.3621
> N_Satellite/Local_Zenith_Angle_Min : 0.00323079
> N_Software_Version : I1.5.08.03
> N_Solar_Azimuth_Angle_Max : 180
> N_Solar_Azimuth_Angle_Min : -180
> N_Solar_Zenith_Angle_Max : 163.134
> N_Solar_Zenith_Angle_Min : 140.003
> N_Spacecraft_Maneuver : Normal Operations
> North_Bounding_Coordinate : -31.8427
> South_Bounding_Coordinate : -42.0654
> West_Bounding_Coordinate : -2.8678
>
> My questions are :
>
> 1. How to read variables under the group in .h5 ? I saw one example
> in (http://www.ncl.ucar.edu/Applications/Scripts/hdf5_2.ncl) , but it did
> not work. However, when I did the following :
> b = f->AerosolOpticalDepth_at_550nm
>
> it shows ,
> Variable: b
> Type: ushort
> Total Size: 76800 bytes
> 38400 values
> Number of Dimensions: 2
> Dimensions and sizes: [DIM_001 | 96] x [DIM_002 | 400]
> Coordinates:
> Number Of Attributes: 0
>
> Is there any other way, variables under the group can be read ?
>
> 2. how to attach lat-lon along with the variables here.
>
> If you need the original file, I can send it is less than 1 mb.
>
> Thanks.
> Partha
>
>
>
>
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