Re: gridding of TRMM 2A25 orbital product

[1] The script sent to you yesterday manually set some information
     that resulted in the correct dBZ. The information on the
     HDF file was incorrect. The file indicated that the
     scale_factor was 100 when it should be 0.01. Also,
     the -8888 indicated "ground clutter." These were set
     ti missing (_FillValue).

[2] The image sent you yesterday showed a single orbit with a very
     narrow footprint. Did you look at the figure? The data spanned
     ~32S - 32N and 0-360. Interpolating that single orbit to the
     grid you describe
     " into Cartesian grid points seperated by 250m in the
       vertical and 0.25 degree in both latitude and longitude "
     is rather bizarre. In fact, you would be analyzing
     interpolation artifacts and not the data.

[3] You can try regridding via
           http://www.ncl.ucar.edu/Applications/ESMF.shtml

[4] I suggest you contact NASA TRMM and not ncl-talk.

On 08/14/2012 10:01 AM, Madhuparna Mukherjee wrote:
> Dear Sir,
>
> Please suggest me how to convert TRMM 2A25 orbital reflectivity(CorrectedZFactor) data into regular latitude longitude grid.For my work it is required to remap the orbital data into Cartesian grid points seperated by 250m in the vertical and 0.25 degree in both latitude and longitude.Using the attached script The data can be plotted, though the values are not in the proper range ( 0-80dBZ).It is showing very high value even if ,they are scaled by 100.I need to rectify this problem and remap the orbital data into regular Cartesian lat-lon grid points. Please help me in this regard.
>
>
> I am awating for your kind reply.
> Madhuparna
>

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Received on Tue Aug 14 10:44:30 2012