NOAA-17, NEXRAD and Grid
Addendum Software and Instructions

04 Sep 2002 Update: Corrections were made to the installation instructions below. (They now say to exit then restart -X and -XCD instead of inactivate then reactivate the data monitors.) The changes were only to the installation instructions. The addendum files (xcd2002_addendum1.ksh and xcd2002_addendum1.tar.Z) were not changed, so if you already downloaded them you do not need to grab new copies.

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26 August 2002

This is the first addendum to the May 2002 McIDAS-XCD upgrade, version 2002. The addendum consists of the following software changes.

• Added support for NOAA-17 by filing TBUS in SYSNAV. (Inquiry 11799)
• Changed the NEXRAD filer's check for encryption to be a no op. (Inquiry 11745)
• Modified the grid data monitor to give composite MRF/AVN and SST grids unique geographic GRIB numbers (e.g., 3744 for AVN, 2124 for MRF hi res, 2526 for MRF low res, and 6164 for SST) so users can specify the GRIB= keyword in their GRD* commands to access all sectors. (Inquiry 11670)
• Updated the GRIB decoder to use the model center's GRIB Table B so ECMWF and other grids are decoded correctly. (Inquiry 11762)

Required Action:

Complete the following steps to obtain and install the addendum.

1. Exit the McIDAS-X session that is running -XCD. From the McIDAS Text and Command Window,

   Type: EXIT

2. Login to the McIDAS-XCD workstation as user oper.
3. Verify that the data monitors (e.g., DMGRID, DMMISC and DMNEXR) have stopped.

   Type: ps -ef | grep DM

   If no data monitors are listed, go to step 4. If one or more data monitors are still running, wait a couple minutes then run the ps command again. The data monitors will evenually die on their own. But if you want, you may kill them with command kill process ID, where process ID is the ID indicated in the ps command output.

4. Change to the ~oper/mcidas directory.

   Type: cd ~oper/mcidas

5. Make a new subdirectory named xcd2002_addendum1.

   Type: mkdir xcd2002_addendum1

6. Download the following two files to the ~oper/mcidas/xcd2002_addendum1 directory on your McIDAS-XCD workstation.

   File name	Size	Description
   xcd2002_addendum1.ksh	2 KB	addendum installation script
   xcd2002_addendum1.tar.Z	83 KB	compressed tar file containing addendum source & data files

7. Verify that the files are owned by oper. If they're not, switch to user root and use the chown command to change their ownership to oper.
8. Run the xcd2002_addendum1.ksh script to install the addendum.

   If you are using vendor compilers,

   Type: ksh ./xcd2002_addendum1.ksh -v

   If you are using gcc/f2c compilers,

   Type: ksh ./xcd2002_addendum1.ksh -gcc

   The script performs the following steps.

   • uncompresses and untars the file xcd2002_addendum1.tar.Z
   • copies the five updated source files (dmgrid.pgm, dmnexr.pgm, m0tirdec.for, Mcgribdecoder.c and Mcmkmcgrid.c) and the new include file (_mcidasxcd.mk) to the ~oper/mcidas/xcd2002/src directory
   • copies the new data file gbtbpds001.b98v1 to the ~oper/mcidas/xcd2002/data directory and creates a hard link for it to the ~oper/mcidas/data directory
   • compiles the updated source files and their dependencies using make

   When the script is finished, you will see the message below.

   McIDAS-XCD 2002 Aug 26 addendum installation complete.

9. Start a McIDAS-X session so you can restart -XCD.

   Type: mcidas

10. Restart -XCD. From the Text and Command Window of the McIDAS-X session you started in step 9,

    Type: STARTXCD

This completes the instructions. If you have any questions, send email to the McIDAS Help Desk.