VII. Purge Rule Information

1. Gridded NUCAPS

The TOWR-S RPM version 20 installs an edex purge rule which defaults the products to keep 3 days' worth of Gridded NUCAPS products​​​​​​​(gridPurgeRulesGriddednucaps.xml)

 

2. Global Multi-Satellite Geostationary Mosaics

The TOWR-S RPM version 19 and 20 installs an edex purge rule which defaults the products to keep 3 versions (or about 3 days worth of 3-hourly products). This file is planned for baseline in 23.2.1  ​​​​​​​(gridPurgeRulesGOESComposite.xml)
 

3. Global Blended Hydrology Products

The TOWR-S RPM versions 18.5, 19, and 20 install an edex purge rule which defaults the products to keep 36 versions (or about 36 hours worth of approximately hourly products). This file is baselined in 20.2.1  (gridPurgeRulesPolar.xml)
​​​​​​​

4. GOES-East and GOES-West

The TOWR-S RPM does not set any specific edex purge rules for GOES-16/17, and so the default is the baseline (1 day/24 hours) for each sector (e.g. ECONUS-East Conus, EFD-East Full Disk, AKREGI- Alaska Region, etc). Below are some basic steps for changing the purge rules:

A. From 24 hr to a different purge for GOES-16/GOES-17 products:
 
1. Log into dx1 as root

2. cd /awips2/edex/data/utility/common_static/site/<site_name>

3. Create a /purge dir at the site level location at the site level (if none exists), like this:  mkdir purge

4. cd /awips2/edex/data/utility/common_static/base/purge, then cp satellitePurgeRulesGOESR.xml /awips2/edex/data/utility/common_static/site/<site_name>/purge

 

To modify the purge time in hours, go to your site level satellitePurgeRulesGOESR.xml, and replace 01-00:00:00 (1 day), above, with a different value in each of the desired sectors.  For an 18-hour purge, update the entry to 00-18:00:00.  For a 2-day purge, enter 02-00:00:00.

 
As an example, the baseline has for Puerto Rico:
 
<rule>
  <keyValue>PRREGI</keyValue>
  <period>01-00:00:00</period>
</rule>

It may be changed to a 18-hour purge by changing the above expression to:
 
<rule>
  <keyValue>PRREGI</keyValue>
  <period>00-18:00:00</period>
</rule>

Note that the DMW (derived motion winds) have a separate purge rule file given a different plugin/table in which these data store.
 
The base dmw purge file looks like this (18-hour purge):
 
​<purgeRuleSet>
    <defaultRule>
        <period>00-18:00:00</period>
    </defaultRule>
</purgeRuleSet>
 

Microwave GCOM AMSR2 and ATMS MiRS product purging (pointset plugin)

TOWR-S RPM version 20 contains new menus/bundles/ingest configurations for numerous polar products that are available via data delivery.  These products use the pointset plugin in AWIPS.  The baseline edex purge file for these products is /common_static/base/purge/pointsetPurgeRules.xml.  The default purge rule is set to 1 day.