15.0 Creating an ADDE Dataset
In this document we describe how to create an ADDE dataset from a collection
of data files.
Table of Contents:
Deciding where to put the dataset files
The workshop machines are setup with a /data/workshop/mcidas directory which
is writable by the user mcidas. This will be the directory used to
store the data files for our example dataset.
Accumulating the data files to be included in the dataset
For this exercise, we will FTP a set of imagery from the Unidata-Wisconsin
archive maintained at the SSEC at the University of Wisconsin-Madison.
machine: unidata2.ssec.wisc.edu
user: unidata3
pass: unirec7
directory: neartime/<choose a day>
Grab all of the GOES 11 IR files.
cd /data/workshop/mcidas
ftp unidata2.ssec.wisc.edu
<user> unidata3
<pass> unirec7
cd neartime
dir
cd <day chosen>
binary
prompt
mget *.goes11ir
quit
Configuring McIDAS to be able to access the data files in the dataset
For this, we need to run a McIDAS file REDIRECT command to tell McIDAS where
the data files live:
DMAP *.go*
This listing is most likely empty.
REDIRECT ADD *.go* "/data/workshop/mcidas
Verify that you can see the images from your McIDAS session:
DMAP *.go*
Deciding on the group and descriptor name(s) for the
ADDE dataset
For lack of anything more creative, let's call our dataset UNIREC/GOES11-IR.
Creating the server mapping table entries that define the dataset
To create the server mapping table entry for the new dataset
group/descriptor use the DSSERVE command.
First, review the online help for the DSSERVE command.
Then use the DIRFILE= keyword option of DSSERVE to setup your
dataset.
DSSERVE ADD UNIREC/GOES11-IR AREA TYPE=IMAGE DIRFILE=/data/workshop/mcidas/*.goes11ir "GOES-11 10.7 um images from the Unidata-Wisconsin archive
See if you can now list the definition for the dataset:
DSINFO IMAGE UNIREC
If all has gone correctly to this point, produce a short listing of the images
in the UNIREC/GOES11-IR dataset:
IMGLIST UNIREC/GOES11-IR.ALL
IMGDISP UNIREC/GOES11-IR 1 SF=YES STA=KSLC EU=IMAGE REFRESH='ERASE G 1;MAP H 1 GRA=1;MAP X 5 ST=UT COU=ALL GRA=1'