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Changes for page AusPass Data

Last modified by robert on 2025/08/21 13:37
From version 3.1
edited by robert
on 2025/06/15 13:36
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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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13 13  
14 14  == Hosting Your Data With Us ==
15 15  
16 -If you are interested in hosting your seismic data with us, please get in touch! Chances are we would be more than happy to oblige, but keep in mind that we also require metadata in the [[appropriate format>>https://auspass.edu.au/xwiki/bin/view/Data/Field%20Metadata/]].
16 +If you are interested in hosting your seismic data with us, please get in touch! Chances are we would be more than happy to oblige, but keep in mind that we also require metadata in stationXML OR text metadata in the [[appropriate format>>https://auspass.edu.au/xwiki/bin/view/Data/Field%20Metadata/]]which we can then use to build stationXML for you.
17 17  
18 -== AU/IU Network data ==
18 +== External Network data ==
19 19  
20 -We also host //some// waveform data from GeoScience Australia's national network **AU** and the global network **IU**. This is done as a convenience to our users as much of this data is concurrent and proximal to our networks. Again we reiterate that we only host **SOME** of this data, we do not have the resources to do a full clone. If we do not have the data you're looking for, it's best to try IRIS/Earthscope. If they don't have it, you should get in touch with Geoscience Australia directly.
20 +We host //some// (a lot, but not all!) complimentary data from the [[Global Seismograph Network (GSN - IU)>>https://www.fdsn.org/networks/detail/IU/]], mainly NWAO, MBWA, and CTAO.
21 21  
22 +We also archive live streams from the Seismology Research Centre (OZ) as well as the University of Melbourne (VW).
23 +
22 22  (% class="box warningmessage" %)
23 23  (((
24 -AusPass no longer hosts AU network metadata~-~- you will have to get this from Earthscope/IRIS. AU network waveform data is still here.
26 +NOTE AusPass no longer hosts AU network metadata~-~- you will have to get this from Earthscope/IRIS.
25 25  )))
26 26  
27 -[[Venn diagram of where AU network data is stored online>>image:GA_iris_auspass.png||data-xwiki-image-style-alignment="center" height="172" width="459"]]
29 +== QA/QC ==
28 28  
31 +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.
29 29  
30 -== QA/QC ==
33 +We do **not** fix north azimuth misalignments with the exception of perfectly inverted N-S alignments, which are extremely rare.
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. We do **not** fix north azimuth misalignments. 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.
35 +We keep copies of the original raw data as well as [[a folder of timing corrections>>http://auspass.edu.au/data/timecorrections]] and are happy to facilitate access to these upon request. If you see any issues, please let us know.
33 33  
34 34  = Station Data =
35 35  
36 36  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.
37 37  
41 +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 +
38 38  = Earthquake Data =
39 39  
40 -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. Because we must do this manually, our cloned earthquake catalog is only updated monthly. Note that information such as phase arrivals is unfortunately not provided.
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.
41 41  
42 42  Soon we will also begin hosting regionally specific catalogs with full phase picks.