User login

PQL

Pretty Quick Look software

PQL II - Program for Viewing Data

April 21, 2009

 

PQL II is a program for viewing time-series data in any of four formats: MSEED, SEGY,  SAC, or AH (though, to be honest, PASSCAL staff has not used the AH option). It is the second generation PQL, hence the name PQL II. Both generations of code were written by Richard Boaz and PASSCAL staff supports the code on MAC OS X, LINUX, and Solaris platforms.To install PQL II on your system, you need to go the PASSCAL download page, or directly to PQL II download on PASSCAL's FTP area.

The HELP menus for PQL II are actually helpful. Use them a lot till you get to know the program.

Related categories:

Software Resources

PASSCAL PASSOFT Software

PASSCAL provides open-source software for downloading seismic data from data recorders, for quality assessment, and for conversion to other data formats for analysis and archiving at the IRIS Data Management Center.

The PASSOFT package is currently being revised. More information will be posted here when the new version is available to the public.

Older packages can be downloaded from our FTP server.

Related categories:

Station Service Procedure

Although PASSCAL station installations can vary according to the type of equipment being used, servicing is relatively straightforward and similar between station designs and equipment. 

Station servicing has 3 main goals:
• To retrieve waveform data recorded by the station since the previous service;
• To identify and rectify any problems with equipment or damage to the station;
• To refresh consumable items such as compact flash (CF) cards, batteries, etc.

A simple station with easy vehicular access should take around 20 man-minutes to service.

Computer Best Practices

Hard drives and disk space Drives and partitions

IRIS PASSCAL prepared laptops all come with a separate partition for user and experiment data that can be accessed at /data

PASSCAL linux laptops (PCs) come with two hard drives.  On each drive is a complete, tested installation of Fedora linux and a current version of PASSOFT. Each drive is bootable and provides a redundant system. On each drive space is allocated for data and is RAIDed together as the /data directory accessible from either installation.

If you are having a problem and want to try using the backup installation, start tapping the Escape key after the BIOS has finished loading in order to see the GRUB menu.  Then select one of the installations of Fedora to boot into it.  If you saved your data in /data, you will still have access when booted from the backup installation.

Syndicate content