[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[McIDAS #NGM-207442]: mcidas



Hi Sepide,

re:
> but why would it have lat over space?

All that IMGCOPY is doing is creating a pixel in the output image
for each pixel in the input image.  The pixels that are not over the
earth can not have valid lat,lons as that is an earth-based reference.
The values that are assigned should be treated as missing data values.

re:
> the area that i indicated in the NOAA website to get the data from is
> specific and over amazon forest.

If you display the image you will see that it includes points in space
and over the region that you are interested in.

re:
> Also when i get the stations separately it contains the lat and lon that the
> file creating with your command does not have it and instead it has lat and
> lon over the space

I do not understand what you are trying to tell me.  If you IMGCOPY a portion
of the original image and all of that portion is over the earth, then each
point in the output netCDF file will have valid latitudes and longitudes.
If a portion of the image being copied contains space, then a bogus/missing 
value
will be assigned for those pixel's latitudes and longitudes.  This way, the
pixel values will not be kept in the copy.

Cheers,

Tom
--
****************************************************************************
Unidata User Support                                    UCAR Unidata Program
(303) 497-8642                                                 P.O. Box 3000
address@hidden                                   Boulder, CO 80307
----------------------------------------------------------------------------
Unidata HomePage                       http://www.unidata.ucar.edu
****************************************************************************


Ticket Details
===================
Ticket ID: NGM-207442
Department: Support McIDAS
Priority: Normal
Status: Closed


NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.