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Changes for page AusPass Data

Last modified by robert on 2025/08/21 13:37
From version 12.1
edited by robert
on 2025/08/21 13:33
Change comment: There is no comment for this version
To version 7.1
edited by robert
on 2025/08/10 19:41
Change comment: There is no comment for this version

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45 45  We host copies of Geoscience Australia's global earthquake catalog which is derived exclusively from the output of the [[Earthquakes@GA>>path:https://earthquakes.ga.gov.au/]] web portal. We do this by manually downloading CSV data and converting it to Seiscomp SCXML, then importing it into our server to be accessed via FDSN as event data. Because we must do this manually, our cloned earthquake catalog is only updated monthly (usually on the 1st). Note that information such as phase arrivals is unfortunately not provided by GA.
46 46  
47 47  Soon we will also begin hosting regionally specific catalogs with full phase picks.
48 -
49 -= SmartSolo Node Z Polarity bug (IGU-16HR only) =
50 -
51 -In[[ late 2023 it was discovered>>https://epic.earthscope.org/content/smartsolo-archives-flipped-polarity-igu-16hr-3c-5hz]] that the vertical Z channel of **the IGU-16HR short period **SmartSolo nodes is actually inverted relative to the standard expectation of "positive up" (vertical axis dip = -90). EarthScope's solution was to add a -1 multiplier to the //response data.// Because we have a much smaller volume of this data to fix, and far less of it already distributed prior to this announcement, we have opted to do the opposite; e.g. we invert the //raw data// because the data is what is wrong; not the response.
52 -
53 -**Until very recently we also thought that the BD3C-5 "broadband" nodes had inverted data by default, but now understand that their raw exported data has the correct polarity.**
54 -
55 -As such,
56 -
57 -{{warning}}
58 -Do not mix up EarthScope's or the IRIS-NRL node response data with those available at AusPass. Theirs could be inverted relative to our data! We also strongly suspect that the response information at IRIS-NRL is not correct either. In general we have low confidence in the information provided but can confirm that our metadata is at least "pretty close".
59 -{{/warning}}
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