How to Ingest and Display GOES Satellite Data into GEMPAK

GEMPAK can display GOES satellite data.

GEMPAK can display both AREA and GINI formatted satellite data.

Setting up your GEMPAK LDM configuration files

The GEMPAK distribution includes a template script that will have the most current actions included. To see more information regarding this process visit the GEMPAK documentation about this topic.

The information below is only an example of how the ldmd.conf and pqact.conf files may look. Your paths and actions may differ, but the information below should give a general idea on the process as well as descriptions and explanations of some of the terms.

ldmd.conf

How to request GOES data via the LDM.
UNIWISC GOES data and products are delivered as AREA files and the NIMAGE feed carries data and products as GINI files.

ldmd.conf example entry:


########################################
# Request Entries
########################################
#
# LDM servers request data from Data Sources
#
#       (request) (feedset|feedset) (pattern) (hostname pattern)

	request		UNIWISC|NIMAGE	".*"	idd.unidata.ucar.edu
	[the above is a sample host pattern, yours may differ]

More information regarding the UNIWISC (or NIMAGE) feed and other feedtypes

pqact.conf

How to "act" on the data once it is on disk in the LDM queue.
Reminder: ALL spaces in the pqact.conf file need to be (tabs)!

pqact.conf example entries:

# UW Products decoded into GEMPAK file hierarchy
#
# Unidata-Wisconsin PNG compressed Products
#              \1  \2   \3          \4      \5    \6     \7
#           Qx pd anum SAT         BAND    RES CCYYMMDD HHMM
# pnga2area Q0 CF 0015 GOES-10_SND UNKBAND 1km 20000525 2000

# Standard VIS, WV and IR product actions
#
UNIWISC  ^pnga2area Q. (U[^ACXY1]) (.*) (.*)_IMG (0.65)um (.*) (........) (....)
        FILE    -close  data/gempak/images/sat/\3/\5/VIS/VIS_\6_\7

UNIWISC  ^pnga2area Q. (U[^ACXY1]) (.*) (.*)_IMG (3.9)um (.*) (........) (....)
        FILE    -close  data/gempak/images/sat/\3/\5/\4/\4_\6_\7

UNIWISC  ^pnga2area Q. (U[^ACXY1]) (.*) (.*)_IMG (6..)um (.*) (........) (....)
        FILE    -close  data/gempak/images/sat/\3/\5/WV/WV_\6_\7

UNIWISC  ^pnga2area Q. (U[^ACXY1]) (.*) (.*)_IMG (10.7)um (.*) (........) (....)
        FILE    -close  data/gempak/images/sat/\3/\5/IR/IR_\6_\7

# NOAAPORT GINI Images in NIMAGE feed
NIMAGE  ^satz/ch[0-9]/.*/(.*)/([12][0-9])([0-9][0-9])([01][0-9])([0-3][0-9]) ([0-2][0-9])([0-5][0-9])/(.*)/(.*km)/
        FILE    -close  data/gempak/images/sat/\8/\9/\1/\1_\2\3\4\5_\6\7

Additional Information

For more information, please visit the GEMPAK Home Page.