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

[McIDAS #ENV-248133]: GOES Visible reflectance normalization in McIDAS

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: [McIDAS #ENV-248133]: GOES Visible reflectance normalization in McIDAS
  • Date: Mon, 14 Aug 2017 12:30:46 -0600
Hi Greg,

re:
> Can you point me in the right direction to get started with this? I've
> used the Terascan software to normalize the visible reflectance by the
> cosine of the solar zenith angle and would like to do a similar thing in
> McIDAS - I'm not sure how to calculate the angles for each pixel. Googling
> around, it looks like there may functions I could use in McIDAS-XRD but I'm
> not sure if I have access to that software through Unidata or not.

What is the XRD function/program that you are referring to?

I chose to not bundle all of XRD with Unidata McIDAS as the only thing
that SSEC guarantees is that XRD routines will compile on their set of
supported platforms.  I tried to go through the XRD routines and
incorporate the ones that I thought would be generally useful in Unidata
McIDAS.  Those XRD routines are not built by default, but they are easily
built and installed by sites that have already built Unidata McIDAS:

<as 'mcidas'>
cd ~mcidas/mcidas<version>/src
make  OR  make mcx               <- build Unidata McIDAS-X
    then
make XRD

finally:

make install   OR make install.mcx
make install.xrd

If there is an XRD routine that you need that I have not include, it
will incorporate it into my release.

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: ENV-248133
Department: Support McIDAS
Priority: Normal
Status: Open
===================
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.