Hi, I’m using OOI hydrophones to measure low-frequency receptions of the Kauai Beacon.
The Southern Hydrate Hydrophone has some sort of clock drift issue that is evident in figure 6.3(b) of my dissertation..
Hi, I’m using OOI hydrophones to measure low-frequency receptions of the Kauai Beacon.
The Southern Hydrate Hydrophone has some sort of clock drift issue that is evident in figure 6.3(b) of my dissertation..
Hi John,
Thanks for flagging this. Just to clarify - you are referring to figure 6.3(g) correct? In your dissertation that is the subfigure you mention for the clock drift.
I am jumping in here because the timing problems also appear to impact the seismic data. It is left panel of Figure 6.3(g) which appears to show that there was a variable clock error for entirety of March 2023-March 2024 (all the data analyzed). From conversations with Dana Manalang, I understand there have been efforts to resync the clock during this interval but it is not easy to determine whether they have worked. I do not know whether there is a way to flag potential timing errors in the Earthscope (IRIS) data management system.