dlnorgaard
commented
6 years ago From Jeremy:
What he is asking for is basically an RSAM value for the helicorder zoom window and clipboard (what did you call this window again?). So instead of computing RSAM for every X minute interval, you use the start and stop times of the zoom/clipboard window to compute RSAM and insert that value right after the min/max amplitudes in the bottom info bar as in the attached figure. Make sense?
On Wed, May 31, 2017 at 8:53 AM, Jeremy Pesicek jpesicek@usgs.gov wrote: another swarm feature request to think about
Begin forwarded message:
From: Javier Francisco Pacheco javier.pacheco.alvarado@una.cr Subject: Re: poas slides Date: May 31, 2017 at 8:26:58 AM PDT To: Jeremy Pesicek jpesicek@usgs.gov
Hello Jeremy;
There is one thing that would be very useful for us to include in the Swarm, and that is, to have a measure of the peak to peak amplitude of the tremor. When you use the zoom tool, you can get the amplitude of the signal at the mouse point. Of course you could measure the maximum value here and the minimum there and get the difference to estimate the peak to peak value, but that takes time. A useful tool would be to get the average peak to peak value of the time segment you are zooming on. Why is it important ? We found out at Turrialba that when the tremor goes over a given value, there is ash out from the vent, lower values does not have ash. When it is cloudy or rainy, it is difficult to see if there is ash in the air, and we guestimate the occurrence of an event by measuring the tremor size ….
Regards;
Javier Francisco Pacheco OVSICORI-UNA