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[SupportPlaza #ORL-827740]: Internal server error (McIDAS archives)

Hi Luis,

re:
> I am trying to have access to the GOES satellite imagery McIDAs archives via
> http://idd.ssec.wisc.edu/uniwisc. However, I am getting the following
> set of lines:
> 
> Internal Server Error
> The server encountered an internal error or misconfiguration and was
> unable to complete your request.
> Please contact the server administrator, address@hidden and
> inform them of the time the error occurred, and anything you might
> have done that may have caused the error.
> More information about this error may be available in the server error log.
> 
> In particular, I am using "wget" to bring images (GOES-15, infrared)
> from recent (September 2014) dates. Are you able to provide assistance
> to understand and, perhaps, fix the above issue?

One of our system administrators will look into this tomorrow.

Since you need fairly recent images, you may be able to get what you
want from the neartime datasets on idd.ssec.wisc.edu:

http://idd.ssec.wisc.edu

  Decoded data archives
  http://idd.ssec.wisc.edu/decoded/

    gempak -> areas
    http://idd.ssec.wisc.edu/decoded/gempak/areas/

    etc.

The difference between the images in the password controlled area and the
ones accessible by walking the directory tree above are:

- the length of the "archive" is much shorter for the latter set

- the images in the latter set are still in PNGA-compressed format while
  the ones in the former set are simple McIDAS AREA files

  Images sent in the Unidata IDD are either in zlib-compressed GINI format
  or PNGA-compressed AREA format.  All display/visualization packages available
  GEMPAK, the IDV and McIDAS-X, understand images in the compressed formats
  used in LDM/IDD distribution, so it is likely that you will be able to
  use the PNGA-compressed images directly in your application (presumably
  still GEMPAK).  If not (i.e., if you are trying to use the images in
  some other display/analysis package), you will need to uncompress the
  images using an appropriate ldm-mcidas decoder: pnga2area for PNGA-compressed
  images and zlibg2gini for zlib-compressed images.

We apologize for the problems getting to the Unidata-Wisconsin archives on
idd.unidata.ucar.edu!

Cheers,

Tom
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Ticket Details
===================
Ticket ID: ORL-827740
Department: Support Datastream
Priority: Normal
Status: Closed