[ncl-talk] unable to extract data and plot it for a smaller domain.

[Geeta Geeta]

Hi.
I have satellite data which has a resultion of 4 km (TIR1) and there is projection information provided in the datafile.
integer Projection_Information ( DIM_000 )
        DIMENSION_LIST :    <ARRAY of 0 elements>
        false_easting :      0
        false_northing :      0
        grid_mapping_name :    mercatorpor Brightness Temperaturerature
        longitude_of_projection_origin :      75
        lower_left_lat_lon(degrees) :    (  -10, 44.5 )
        lower_right_lat_lon(degrees) :    (  -10, 105.5 )
        semi_major_axis :    6378137
        semi_minor_axis :    6356752.3142
        standard_parallel :    17.75
        upper_left_lat_lon(degrees) :    ( 45.5, 44.5 )
        upper_left_xy(meters) :    ( -3234623.003937, 5401854.420193 )
        upper_right_lat_lon(degrees) :    ( 45.5, 105.5 )
The lat/lon are not provided.

Plotting the TIR1 (count), radiance and Brightness temperature for the entire domain is happening by using information from the Projection info. This INFO is used from the Line numbers 109-114 of the code. 

My questions are 1. I am Not able to plot the data for a smaller domain of my ineterst
                          2. since I am unable to attch the lat/lon arrays to the variables, I am unable to plot the data for a smaller domain and unable to write the data for a smaller domain of my intererst.
the Images are attached.


Request someone to help me.

Geeta.
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