20010417: Color bar for satellite display

Luis,

GEMPAK uses the default conversion for IR temperatures when the
calibration type is "BRIT", and the image is not the visible
channel.

The color bar attributes are hardcoded in $GEMPAK/source/gemlib/im/imdrop.f
in the call to IM_CBAR. They are not configurable within the program.

For other calibrations, such as the CIMSS, where the calibration block
is PROD, the IM_CALIB routine will produce the color scale based
on the units provided in the area file.

Steve Chiswell
Unidata User Support



>From: LUIS M FARFAN <address@hidden>
>Organization: UCAR/Unidata
>Keywords: 200104171752.f3HHqGL00787

>I am using the program GPMAP to display satellite imagery and can not 
>find a way
>to control the size, location and numbers that are displayed in the 
>associated color
>bar. My satellite images are "composites" from individual GOES 
>components and the
>default color bar for satellite images (scale from 57 to -100 oC) 
>does not make sense
>to my results. I have created my own "LUTFIL" for my specific 
>purposes , but the
>color bar remains  a problem.
>
>Could you please indicate whether GEMPAK provides options to modify 
>this color bar?
>
>Thank you,
>-- 
>Luis M Farfan.
>