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Changes for page AusPass Data

Last modified by robert on 2025/08/21 13:37
From version 9.1
edited by robert
on 2025/08/15 16:16
Change comment: There is no comment for this version
To version 12.1
edited by robert
on 2025/08/21 13:33
Change comment: There is no comment for this version

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... ... @@ -46,14 +46,16 @@
46 46  
47 47  Soon we will also begin hosting regionally specific catalogs with full phase picks.
48 48  
49 -= SmartSolo Node Z Polarity bug =
49 += SmartSolo Node Z Polarity bug (IGU-16HR only) =
50 50  
51 -In late 2023 it was discovered that the vertical Z channel of all 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.
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 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 +
53 53  As such,
54 54  
55 55  {{warning}}
56 -Do not mix up EarthScope's or the IRIS-NRL node response data with those available at AusPass. Theirs will likely be inverted relative to our data!
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".
57 57  {{/warning}}
58 58  
59 59