--------------------------------------------------------------- The following message was sent to you via AVO Web Email System: --------------------------------------------------------------- Name: Petra Watzka Email Address: pw2@malinpebbles.com Subject: RSAM question Message: Hello team, I am trying to learn a little more every day about volcano monitoring, but RSAM is a bit hard to understand given the varying descriptions throughout the internet. My question is: if the computer reads the raw data to calculate RSAM, will it include any technical glitches too? I am just looking at Okmok (2016-10-16, after 6.00 a.m.), where OKSP shows something that looks to me like an instrumental issue as there is nothing on OKSO. But RSAM for OKSP shows a sharp increase at the time, which goes clean back down to base levels when the disturbance stops at the helicorder. So, if technical glitches are included in the RSAM calculations, it wouldn't make sense to calculate RSAM for any stations that are constantly disturbed by nearby electrical equipment or other continuous noise like ocean waves or nearby machinery? Or could such noise somehow be "calculated out" afterwards? Thank you for your time, and thank you for your work, achieving so much with so little (budget)! Kind regards from Germany Petra ---------------------------------------------------------------- REMOTE IP ADDRESS: 127.0.0.1 USER AGENT/BROWSER: Mozilla/5.0 (Windows NT 6.0; rv:49.0) Gecko/20100101 Firefox/49.0 REFERRING PAGE: http://www.avo.alaska.edu/contact.php