pSysmon – edit geometry

Posted on February 21, 2012 in pSysmon, Software

I’m falling in love with Python more and more while encountering the beauty of this language and the trillions of already existing excellent code libraries. pSysmon is now doing it’s work using the multiprocessing module to provide real parallel computing. Moreover I’m using sqlAlchemy as the pSysmon database back-end. It enables the usage of various database engines and a much more efficient and readable code for database transactions. With these changes the basic framework for pSysmon is almost at the point where I want it to be.

As a teaser two screenshots of the geometry dialog follow. The geometry of the seismic networks is read from the database and XML files. The content of the inventory read from an XML file can be saved to the database. The assignment of stations and sensors is done by drag’n'drop. The geometry can be checked visually in a map and the sensor’s transfer functions will also be plotted.

tracedisplay development – stations and channels

Posted on October 31, 2011 in pSysmon

The development of pSysmon’s major visualization tool keeps on going. I already have added the support for channels and stations.
The next steps will be to add user interactivity and a dynamic integration of processing plugins.

tracedisplay development – first visualizations

Posted on October 23, 2011 in pSysmon

After a hard struggle with the correct resize behaviour of matplotlib canvases in wxPython panels I have finished the first step towards a pSysmon tracedisplay module. See the following screenshot for a quick stack of TdView panels. Each TdView holds an axes to display the data.

seismon breaking free

Posted on October 20, 2011 in pSysmon

After a positive evaluation of Python to replace Matlab and the discovery of the great work done by the obspy guys I have decided to free Seismon and translate it to the Python programming language. Seismon is becoming pSysmon.
Follow me here on my way towards a free seismological prototyping software.

Here’s a first glance at the pSysmon main window:

 

This summer

Posted on September 27, 2011 in Daily routine

EGU 2011

Posted on March 25, 2011 in Daily routine, Seismon

In almost a week the European Geoscience Union General Assembly 2011 is going to start in Vienna. I’ll be there the whole week and it would be a good possibility to meet each other, have a short chat about Seismon and get a demonstration of the latest Seismon developments. I’m involved in several poster presentation and of course you can find me there during the presentation time.

Here’s a short overview of my schedule:

Monday, 4.Apr.,  (SM1.3, Attendance 17:30–19:00)

XY677 EGU2011-6264
Usage of SEISMON within the WEBNET seismic network
Jan Michálek, Jana Doubravová, and Stefan Mertl

XY670 EGU2011-6950
Location performance of the ALPAACT seismic network
Maria-Theresia Apoloner, Ewald Brückl, Johanna Brückl, Walter Loderer, Stefan Mertl, and Bernd Schurr

Tuesday, 5.Apr., (NH3.4, Attendance 17:30–19:00)

XY551 EGU2011-2399
Seismic- and GBSAR monitoring of a rock-slide
Stefan Mertl, Sabine Rödelsperger, and Stefan Weginger

Thursday, 7. Apr., (NH3.8, Attendance 17:30–19:00)

XY380 EGU2011-3412
The Gradenbach Observatory – monitoring in-stationary deep-seated gravitational creep by geodetic, hydrological, and seismological methods
Ewald Brueckl, Fritz K. Brunner, Erich Lang, Stefan Mertl, Martin Mueller, and Ulrike Stary

Looking forward to meeting you,
Stefan.

Developer’s Guide

Posted on March 24, 2011 in Seismon

I have updated the documentation and added the Developer’s Guide. The Developer’s Guide will help you to add your own code to Seismon.
The currently available chapters in the Developer’s Guide explains how to create tracedisplay tools and gives some examples for the most common tool types.

Go and read the Developer’s Guide to make Seismon do your things.

 

feel – see – hear

Posted on March 10, 2011 in SeismoSounds

I one of my favorite book stores I stumbled over the small picture book Seismic Stations by Florian Dombois. The book shows a collection of pictures of seismic stations of the GSN network which have been collected from the Iris homepage.

Searching for more work by Florian, I stumbled over his site www.auditory-seismology.org and I got really excited. Auditory-seismology gives some examples of seismograms turned into sound by compressing the time and resampling. Listening to those lines that I daily work with makes a lot of fun. Browsing through the website and reading some of his articles I got inspired to audify the seismograms by myself. Unfortunately I can’t use the Sonifyer tool (which I’d love to try) cause I’m not working on a Mac, so I started to write my own audification tool in Seismon.

I have coded the audification tool to listen to the seismograms displayed in the Seismon tracedisplay window and I can’t stop using this tool. It’s unbelievable what’s going on inside the earth and hearing all those different types of signals recorded by a geophone is stunning! I already found the most scary sounding seismic station in the world, but more on that later.

For now I have created a small example of an earthquake audified using Seismon. I’ve used the ML 4.2 earthquake in Hungary that already has been the topic of my ODC video tutorial.

Take a look at my first SeismoSounds example and listen how the earthquake sound changes with epidistance.

Bug reports and Twitter

Posted on March 2, 2011 in Software

I have added a Bug Tracking tool to the homepage and you can follow me now on Twitter. The reported bugs and feature request as well as their status changes (e.g. fix of a bug) are tweeted, so you can easily stay up-to-date with the Seismon development.

Data in real-time

Posted on February 23, 2011 in Seismic Monitoring

We are currently setting up a monitoring network with UMTS telemetry support for real-time data acquisition and – processing. We do use the reliable Reftek 130 units with the Reftek RTI Software suite for online data transmission. To do the realtime data processing (e.g. event detection and – localization) we have choosen the Earthworm software and Swarm for visualizing the data processed by Earthworm. As additional tools we are using PickEwAnalysis to tune the pick_ew module and EWQuakeAlert for issuing warning emails.

In the gallery you can see some impressions from our station installation.