Re: IDD data retrieval after power outage

Brendon Hoch wrote:

Last year I was able to minimize data loss during an 8 hour power outage by accessing Pete Pokrandt's archives of the raw IDD feeds for DDPLUS and HDS (see below). Unfortunately, Pete no longer maintains this, so I'm looking for other options. I need raw data for DDPLUS/HDS from 7Z to 19Z 3 June 2007 and will need data for an upcoming outage on June 15th. Any help is greatly appreciated.



I started digging, and realized that I could re-enable the archive without much work, so it's started archiving the raw DDPLUS and HDS feeds, one file per hour, again as it used to, starting about 5 minutes ago. This won't help you for your last weekend's outage, but it should be able to get you through the next one. I'll have to let it run for a bit to see how long of a history I can keep. If I recall, before it was something like a week's worth of archive.

The ftp site ( is restricted to known IP addresses, so if you/anyone else wants access, please email me with the IP number you will be coming in from, so I can add it to the allowed hosts.

The username (iddftp) and password should be the same as it ever was. Anyone who needs the password please email me.


 >Hello LDMers,
>We're scheduled to have an 8 hour power outage next month. What is the >recommended procedure to retrieve IDD data once the juice comes back on? > I'm assuming it involves FTPing hourly data files from somewhere, then >running pqact -q /path/to/hourlyfilename so we can get the data back >into our archives. I'd like to confirm that everything will go smoothly >before we turn out the lights...


Sorry, I just realized I never got back to you.

We archive the raw LDM feed for the DDPLUS and HDS feeds, I can
get you access to those files (1 per hour) and you can feed
them back into your ldm as a replay, with a command such as

pqing -l - -q /u2/ldm/data/ldm.pq -f hrs 2001011511.HRS


^ Pete Pokrandt                    V 1447  AOSS Bldg  1225 W Dayton St^
^ Systems Programmer               V Madison,         WI     53706    ^
^                                  V       poker@xxxxxxxxxxxx         ^
^ Dept of Atmos & Oceanic Sciences V (608) 262-3086 (Phone/voicemail) ^
^ University of Wisconsin-Madison  V (608) 262-0166 (Fax)             ^

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