[ncl-talk] TRMM 2A12 V7 data

[Dennis Shea]

Please ... always look at the HDF page for examples

http://www.ncl.ucar.edu/Applications/HDF.shtml

Specifically,

hdf4sds_6.ncl <http://www.ncl.ucar.edu/Applications/Scripts/hdf4sds_6.ncl>

On Sun, Apr 17, 2016 at 8:57 PM, Geeta Geeta <geetag54 at yahoo.com> wrote:

> Hi NCL users.
> I am trying to plot the TRMM 2A12 V7 data which is ORBITAL data in the
> HDF4 format.
> This has hydrometeor profiles upto 18km in atmosphere and these are not
> available directly.
> I am attaching the documentation for 2A12 .
> I am unable to extract the hydrometeors at different levels from this
> data.
>
> The Pg 118 of the file filespec.TRMM.V7.pdf decribes that two arrays have
> to be multiplied in order to get a profile. I get error like this.
>       byte clusterNumber ( nscan, npixel, nspecies )
>          hdf_name : clusterNumber
>
>       float clusterScale ( nscan, npixel, nspecies )
>          hdf_name : clusterScale
>
>
> Variable: CLUSTER
> Type: float
> Total Size: 5200 bytes
>             1300 values
> Number of Dimensions: 2
> Dimensions and sizes: [ncluster | 100] x [nfindex | 13]
> Coordinates:
> Number Of Attributes: 1
>   hdf_name : cluster
> (0)
> (0) min=0   max=0.835986
>
> Variable: clus_scale
> Type: float
> Total Size: 2428608 bytes
>             607152 values
> Number of Dimensions: 2
> Dimensions and sizes: [nscan | 2919] x [npixel | 208]
> Coordinates:
> Number Of Attributes: 4
>   _FillValue : -9999.9
>   lat2d : <ARRAY of 607152 elements>
>   lon2d : <ARRAY of 607152 elements>
>   hdf_name : clusterScale
> (0)
> (0) min=0.005   max=1.873
> fatal:Mul: Dimension size, for dimension number 0, of operands does not
> match, can't continue
>
> fatal:["Execute.c":8578]:Execute: Error occurred at or near line 96 in
> file 2A12.20090929.67632.7.HDF.surfpptn.ncl
>
> aditya at agniilap:~/geeta/ncl/ReadHDF-2A12-U-V7$
>
>
> Geeta.
>
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