Unidata McIDAS Learning Guide
Installing the Learning Guide Dataset
The Unidata McIDAS Learning Guide dataset consists of McIDAS data files from
a 1993 spring snow storm over the East Coast of the United States. The
data can be accessed through Unidata's remote ADDE server. If you wish
to install this for use with your own remote ADDE server, or through
your own local server,
the data set is available on the Unidata passworded McIDAS FTP account
in the data/tutorial
directory in either compressed tar or ZIP format. Follow the
instructions below to set the data files up for your own use.
Installing the Learning Guide dataset requires about 123 MB of disk
space: 93 MB for the dataset and 30 MB for the compressed distribution
file (tar or ZIP). The data set contains the following files:
- fourteen AREA files (numbers 8000-8013) containing
GOES-7 and METEOSAT-3 visible and infrared images of the strom
- five MD files (numbers 8000-8004) containing hourly surface
observations, mandatory and significant RAOB (radiosonde)
observations, ship and buoy observations, and synoptic
observations from 13 March 1993.
- five GRID files (8000-8004) which contain the NGM forecast runs from
12 UTC/11 March 1993 to 12 UTC/13 March 1993.
- a McIDAS BATCH file (BLIZADDE.BAT) which sets
up the ADDE server names.
All Learning Guide examples use the ADDE. Access to the data can be
provided through a remote McIDAS-X ADDE server, or it can provided
through the local servers using REDIRECTions.
It is recommended that you use the McIDAS-X remote ADDE server to
serve up the datafiles to McIDAS-X workstations. The
instructions below are for setting up a remote ADDE server.
Setting up the dataset for the remote server
You should have set up the McIDAS-X ADDE remote server when you installed
McIDAS-X. The following steps should be done on the machine running
the remote server.
- Logon as the user mcidas.
- Download the Learning Guide dataset
compressed
tar file to the ~mcidas/data/tutorial directory.
- Go into the ~mcidas/data/tutorial directory and unpack the
compressed tar file.
Type: cd ~/mcidas/data/tutorial
Type: zcat learn.data.tar.Z | tar xvf -
After untar'ing the dataset, you can delete the compressed tar file:
Type: rm learn.data.tar.Z
- Start a McIDAS-X session.
- When you installed McIDAS-X, you created a REDIRECTion table
(LOCAL.NAM) from the sample file (EXAMPLE.NAM) which
has entries for the Learning Guide datasets. Make sure that the
entries for the datafiles were included in LOCAL.NAM.
The following REDIRECTions should be in the list:
AREA80* directory
GRID80* directory
MDXX80* directory
where directory is the full path to the
~mcidas/data/tutorial directory (ex:
/home/mcidas/data/tutorial).
- Add a REDIRECTion to BLIZADDE.BAT and run it to set up
the ADDE dataset names and file associations. Delete the REDIRECTion when
you are done.
Type: REDIRECT ADD BLIZADDE.BAT "directory
Type: BATCH BLIZADDE.BAT
Type: REDIRECT DEL BLIZADDE.BAT
where directory is the full path to the ~mcidas/data/tutorial
directory (ex: /home/mcidas/data/tutorial).
Setting up user accounts
- From each McIDAS-X account workstation that will
access the BLIZZARD dataset from your remote server, run
DATALOC to point to the remote server.
Type: DATALOC ADD BLIZZARD fully_qualified_host_identifier
where fully_qualified_hostname is the IP address or
fully qualified hostname of machine running the remote ADDE server.
- Test your installation by using the DSINFO command to
list out the information on the BLIZZARD dataset.