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Changes for page AusPass Data

Last modified by robert on 2025/08/21 13:37
From version 3.2
edited by robert
on 2025/06/19 18:02
Change comment: There is no comment for this version
To version 4.2
edited by robert
on 2025/06/19 18:16
Change comment: There is no comment for this version

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... ... @@ -29,17 +29,17 @@
29 29  
30 30  == QA/QC ==
31 31  
32 -Where possible, we will fix obvious timing errors such as constant time offsets and clock drifts and host the "fixed" version of the waveform data. Sometimes timing corrections cannot be reliably fixed (e.g. clocks jumping around too much intraday) and they are left as-is. Other times, issues were missed or could not be perfectly fixed. If you find any discrepancies, kindly just let us know when and where and we'll see what we can do.
32 +Where possible, we will fix obvious timing errors such as constant time offsets and clock drifts and host the "fixed" version of the waveform data. Sometimes timing corrections cannot be reliably fixed (e.g. clocks jumping around too much intraday) and they are left as-is. Other times, issues were missed or could not be perfectly fixed. If you find any discrepancies, kindly just let us know when and where.
33 33  
34 -We do **not** fix north azimuth misalignments with the exception of perfectly inverted N-S alignments, which is extremely rare.
34 +We do **not** fix north azimuth misalignments with the exception of perfectly inverted N-S alignments, which are extremely rare.
35 35  
36 -We keep copies of the original raw data as well as a list of timing corrections and are happy to facilitate access to these upon request. If you see any issues, please let us know.
36 +We keep copies of the original raw data as well as [[a folder of timing corrections>>http://auspass.edu.au/timecorrections]] and are happy to facilitate access to these upon request. If you see any issues, please let us know.
37 37  
38 38  = Station Data =
39 39  
40 40  For all of the networks and stations in our waveform archive, we also host the accompanying STATION metadata (which includes response information). For networks outside of our control (e.g. AU and IU) we download this metadata from IRIS/Earthscope. Any issues with this data should be directed at the respective agencies in charge of keeping it accurate.
41 41  
42 -Response information, particularly for older stations when records were not usually kept very well, might be wrong! Sometimes we just have to take a guess and eyeball appropriate gain values via expected PSD amplitudes. In practice even if the gain is off by 2-4x, the affect on resulting earthquake magnitude estimates are lower than the natural degree of scatter in estimates from station to station.
42 +Response information, particularly for older stations when records were not usually kept very well, might be wrong! Sometimes we just have to take a guess and eyeball appropriate gain values via expected PSD amplitudes. In practice even if the gain is off by 2-4x, the affect on resulting earthquake magnitude estimates are lower than the natural degree of scatter in estimates from station to station. 
43 43  
44 44  = Earthquake Data =
45 45