RIZ issue with broadband vs. accelerometer comparison

Jesse Hutchinson (University of Canterbury) has identified an issue with RIZ seismic data when comparing data from the broadband and strong motion sensors installed at the station.

His procedure is explained in https://github.com/GeoNet/help/issues/84#issuecomment-931798699

processed Power Spectral Amplitude plots show a consistent difference between RINZ strong motion and broadband data for earthquakes with M>5 in the time period 2019-2020 pSA_diff_RIZ_datetime

It is likely that this difference is due to one of the sensors going flat during that time period. Further investigations to confirm the cause are needed.

/cc @SquirrelKnight, to help pinpoint time period and possible cause, can you please post here the list of events used to produce this figure?

Here are the events used for the above measurements:

'2012p553582', '2012p595069', '2012p647755', '2012p681111', '2012p733490', '2012p766923', '2012p767122', '2020p263458', '2020p269386', '2020p332789', '2020p489837', '2020p498617', '2020p525251', '2020p548309', '2020p830671', '2020p926977', '2020p979274'

RIZ is Raoul island Remotely accessble stations

considering metadata HH Vs HN as in https://service.geonet.org.nz/fdsnws/station/1/query?station=RIZ&format=text&level=channel&channel=H?Z
Season Events 2012 is consistent and all good with no instrumentation changes
Season Event 2020's is more complicated - metadata changes over time indicate potential issue(s)
a. Sep 2019 to Nov 2020 for the events '2020p263458','2020p269386', '2020p332789', '2020p489837', '2020p498617','2020p525251', '2020p548309'
- in Sep2019 Replace broadband and strong motion seismometers in the RIZ vault Removed Weak: Guralp Model: CMG-3ESP and Strong Kinemetrics Model: FBA-ES-T Install Weak: Nanometrics Model: Trillium 120QA and Strong Kinemetrics Model: FBA-ES-T-ISO Hence Strong response shoudl not vary too much -->The Gain ratio difference is 4 between the SM installation before and after 2016 4 is ~e1.4 while 1.4 is the ratio seen in the above graphic fro the problematic period.
- The GPS timing on the Weak Q330 died on 23/12/2019: RIZ/RAUL - raoulmetstation - Seismic Timing Fault #5772
  Fixed in March 2020
b. Nov2020 to Feb 2021 for the events '2020p830671', '2020p926977','2020p979274' The datalogger Q330 was swapped for another Q330 type : same instrument response.

-Assumptions:
a- Similar strong motion response hence same gain were (wrongly) used for 2012 and 2020s although 2020 has a *Gain4** b- Strong FBA-ES or Trillium120 QS Sensor response or configuration ?

Actions
- Check events HH/HN/BN strong motion parameters for M-5ish below 100km distance 2020p979274 and 2020p498617(strong motion tools for RIZ)
Confirm output difference between Weak and strong FYI @elidana

most likely a ratio of 4 between RIZ HH and HN for these 2 above events. (more to come)

There is an - obvious- PSA/PGA difference in 2020 by RIZ Raoul island between HH/HN See belpw (no need to compare the PSAs Ratio is ~time 4

Event 2020p498617

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>         <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!DOCTYPE earthquake SYSTEM "stationlist.dtd">                  <!DOCTYPE earthquake SYSTEM "stationlist.dtd">
<stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml"   <stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml"
  <station code="RIZ" name="RIZ" netid="NZ" insttype="Trilliu |   <station code="RIZ" name="RIZ" netid="NZ" insttype="FBA-ES-
    <comp name="10.HHE">                                      |     <comp name="20.HNE">
      <acc value="3.2882998009" flag="0"/>                    |       <acc value="0.7794464103" flag="0"/>
      <vel value="1.2413733920" flag="0"/>                    |       <vel value="0.3010102158" flag="0"/>
      <psa03 value="5.2516239164" flag="0"/>                  |       <psa03 value="1.3026295004" flag="0"/>
      <psa10 value="0.5281061817" flag="0"/>                  |       <psa10 value="0.1306030042" flag="0"/>
      <psa30 value="0.0349679485" flag="0"/>                  |       <psa30 value="0.0086528750" flag="0"/>
    </comp>                                                         </comp>
    <comp name="10.HHN">                                      |     <comp name="20.HNN">
      <acc value="5.3235685639" flag="0"/>                    |       <acc value="1.4449198090" flag="0"/>
      <vel value="1.5349515077" flag="0"/>                    |       <vel value="0.3551027246" flag="0"/>
      <psa03 value="5.6611978434" flag="0"/>                  |       <psa03 value="1.4561612866" flag="0"/>
      <psa10 value="0.3342218803" flag="0"/>                  |       <psa10 value="0.0880081106" flag="0"/>
      <psa30 value="0.0292224447" flag="0"/>                  |       <psa30 value="0.0076309110" flag="0"/>
    </comp>                                                         </comp>
    <comp name="10.HHZ">                                      |     <comp name="20.HNZ">
      <acc value="3.5350992197" flag="0"/>                    |       <acc value="0.4533266631" flag="0"/>
      <vel value="0.6877658960" flag="0"/>                    |       <vel value="0.1281977146" flag="0"/>
      <psa03 value="1.2282583205" flag="0"/>                  |       <psa03 value="0.2997003001" flag="0"/>
      <psa10 value="0.1445904646" flag="0"/>                  |       <psa10 value="0.0345638400" flag="0"/>
      <psa30 value="0.0115920347" flag="0"/>                  |       <psa30 value="0.0028616972" flag="0"/>
    </comp>                                                         </comp>
  </station>                                                      </station>
</stationlist>                                                  </stationlist>

event 2020p979274

> <?xml version="1.0" encoding="UTF-8" standalone="yes"?>         <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
> <!DOCTYPE earthquake SYSTEM "stationlist.dtd">                  <!DOCTYPE earthquake SYSTEM "stationlist.dtd">
> <stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml"   <stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml"
>   <station code="RIZ" name="RIZ" netid="NZ" insttype="Trilliu |   <station code="RIZ" name="RIZ" netid="NZ" insttype="FBA-ES-
>     <comp name="10.HHE">                                      |     <comp name="20.HNE">
>       <acc value="0.4941437803" flag="0"/>                    |       <acc value="0.1170454285" flag="0"/>
>       <vel value="0.1115322176" flag="0"/>                    |       <vel value="0.0282150623" flag="0"/>
>       <psa03 value="0.4723697473" flag="0"/>                  |       <psa03 value="0.1200957546" flag="0"/>
>       <psa10 value="0.0250678201" flag="0"/>                  |       <psa10 value="0.0062046699" flag="0"/>
>       <psa30 value="0.0022416171" flag="0"/>                  |       <psa30 value="0.0005787207" flag="0"/>
>     </comp>                                                         </comp>
>     <comp name="10.HHN">                                      |     <comp name="20.HNN">
>       <acc value="0.3657536328" flag="0"/>                    |       <acc value="0.0811721977" flag="0"/>
>       <vel value="0.0933475966" flag="0"/>                    |       <vel value="0.0241417859" flag="0"/>
>       <psa03 value="0.5231511377" flag="0"/>                  |       <psa03 value="0.1355195799" flag="0"/>
>       <psa10 value="0.0209135042" flag="0"/>                  |       <psa10 value="0.0053807146" flag="0"/>
>       <psa30 value="0.0019890443" flag="0"/>                  |       <psa30 value="0.0005128434" flag="0"/>
>     </comp>                                                         </comp>
>     <comp name="10.HHZ">                                      |     <comp name="20.HNZ">
>       <acc value="0.2302177579" flag="0"/>                    |       <acc value="0.0649731152" flag="0"/>
>       <vel value="0.0510248189" flag="0"/>                    |       <vel value="0.0134712057" flag="0"/>
>       <psa03 value="0.2288046422" flag="0"/>                  |       <psa03 value="0.0575988433" flag="0"/>
>       <psa10 value="0.0118311645" flag="0"/>                  |       <psa10 value="0.0029701454" flag="0"/>
>       <psa30 value="0.0008189927" flag="0"/>                  |       <psa30 value="0.0002130991" flag="0"/>
>     </comp>                                                         </comp>

---------------------------------------

GLKZ | RIZ HH psa computation shows consistent PSA values in scale Event 2020p498617

<!DOCTYPE earthquake SYSTEM "stationlist.dtd">
<stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml">
  <station code="GLKZ" name="GLKZ" netid="NZ" insttype="Trillium 120QA" lat="-29.262" lon="-177.92">
    <comp name="10.HHE">
      <acc value="2.1806454679" flag="0"/>
      <vel value="0.5180368734" flag="0"/>
      <psa03 value="3.8059693891" flag="0"/>
      <psa10 value="0.3447317382" flag="0"/>
      <psa30 value="0.0188931208" flag="0"/>
    </comp>
    <comp name="10.HHN">
      <acc value="1.9885158498" flag="0"/>
      <vel value="0.5018293198" flag="0"/>
      <psa03 value="3.1817822577" flag="0"/>
      <psa10 value="0.3104649784" flag="0"/>
      <psa30 value="0.0162603001" flag="0"/>
    </comp>
    <comp name="10.HHZ">
      <acc value="1.5119721137" flag="0"/>
      <vel value="0.2928724373" flag="0"/>
      <psa03 value="1.7520792673" flag="0"/>
      <psa10 value="0.1064284764" flag="0"/>
      <psa30 value="0.0088276304" flag="0"/>
    </comp>
  </station>
  <station code="RIZ" name="RIZ" netid="NZ" insttype="Trillium 120QA" lat="-29.2449" lon="-177.929">
    <comp name="10.HHE">
      <acc value="3.2882998009" flag="0"/>
      <vel value="1.2413733920" flag="0"/>
      <psa03 value="5.2516239164" flag="0"/>
      <psa10 value="0.5281061817" flag="0"/>
      <psa30 value="0.0349679485" flag="0"/>
    </comp>
    <comp name="10.HHN">
      <acc value="5.3235685639" flag="0"/>
      <vel value="1.5349515077" flag="0"/>
      <psa03 value="5.6611978434" flag="0"/>
      <psa10 value="0.3342218803" flag="0"/>
      <psa30 value="0.0292224447" flag="0"/>
    </comp>
    <comp name="10.HHZ">
      <acc value="3.5350992197" flag="0"/>
      <vel value="0.6877658960" flag="0"/>
      <psa03 value="1.2282583205" flag="0"/>
      <psa10 value="0.1445904646" flag="0"/>
      <psa30 value="0.0115920347" flag="0"/>
    </comp>
  </station>
</stationlist>

comparison of Ratio HH/BN(HN) good up to 2016 (checked on 2016p475517 and 2016p424618) Events from 2017 (2017p258746 and 2018p531317) start to look awkyard in terms of values matching -Assumption: This can be related to a datalogger swap between instrumentations resulting into something bizarre after that ? check https://github.com/GeoNet/tickets/issues/882

Obsidian datalogger related ?

FYI @SquirrelKnight @elidana WIP

from 2018 July RIZ strong motion degraded noticeably up to 2018.261/263 (September) where the Strong motion became useless up to 2019.264 Sept 21 where the measurement became sensible
So Period of really Bad bad RIZ strong motion 2018.261/263 till 2019.264

Change happened in 2016 September Raoul mission (2016.260)
Actual proper recording of the strong motion start from 2016.266
BN/HN 20 RIZ 2016.265 is crap (~weak motion recordings instead of strong) and is corrected from 2016.266

Checking SM and parameters for the period late 2016 Strong motion such as 2016p872630. November 2016 M5.4 RIZ SM Vs Weak Parameters show a noticeable difference - just after a field change Please check: https://github.com/GeoNet/tickets/issues/879-

as in:

`  <station code="GLKZ" name="GLKZ" netid="NZ" insttype="Trill     <station code="GLKZ" name="GLKZ" netid="NZ" insttype="Trill
<comp name="10.HHE">                                            <comp name="10.HHE">
  <acc value="0.8105100364" flag="0"/>                            <acc value="0.8105100364" flag="0"/>
  <vel value="0.3625093726" flag="0"/>                            <vel value="0.3625093726" flag="0"/>
  <psa03 value="2.0332093732" flag="0"/>                          <psa03 value="2.0332093732" flag="0"/>
  <psa10 value="0.3249875917" flag="0"/>                          <psa10 value="0.3249875917" flag="0"/>
  <psa30 value="0.0213950094" flag="0"/>                          <psa30 value="0.0213950094" flag="0"/>
</comp>                                                         </comp>
<comp name="10.HHN">                                            <comp name="10.HHN">
  <acc value="1.0078450475" flag="0"/>                            <acc value="1.0078450475" flag="0"/>
  <vel value="0.2934706799" flag="0"/>                            <vel value="0.2934706799" flag="0"/>
  <psa03 value="2.2630825714" flag="0"/>                          <psa03 value="2.2630825714" flag="0"/>
  <psa10 value="0.3567158499" flag="0"/>                          <psa10 value="0.3567158499" flag="0"/>
  <psa30 value="0.0251648408" flag="0"/>                          <psa30 value="0.0251648408" flag="0"/>
</comp>                                                         </comp>
<comp name="10.HHZ">                                            <comp name="10.HHZ">
  <acc value="0.5360655152" flag="0"/>                            <acc value="0.5360655152" flag="0"/>
  <vel value="0.2156726317" flag="0"/>                            <vel value="0.2156726317" flag="0"/>
  <psa03 value="1.1372011097" flag="0"/>                          <psa03 value="1.1372011097" flag="0"/>
  <psa10 value="0.1286487524" flag="0"/>                          <psa10 value="0.1286487524" flag="0"/>
  <psa30 value="0.0169301900" flag="0"/>                          <psa30 value="0.0169301900" flag="0"/>
</comp>                                                         </comp>
</station>                                                      </station>
<station code="RIZ" name="RIZ" netid="NZ" insttype="CMG-3ES |   <station code="RIZ" name="RIZ" netid="NZ" insttype="FBA-ES-
<comp name="10.HHE">                                      |     <comp name="20.BNE">
  <acc value="1.7598043392" flag="0"/>                    |       <acc value="0.4247914995" flag="0"/>
  <vel value="0.6878929891" flag="0"/>                    |       <vel value="0.1668835032" flag="0"/>
  <psa03 value="3.6848863627" flag="0"/>                  |       <psa03 value="0.9317593622" flag="0"/>
  <psa10 value="0.5529704634" flag="0"/>                  |       <psa10 value="0.1386621672" flag="0"/>
  <psa30 value="0.0628844313" flag="0"/>                  |       <psa30 value="0.0164746375" flag="0"/>
</comp>                                                         </comp>
<comp name="10.HHN">                                      |     <comp name="20.BNN">
  <acc value="1.4987779734" flag="0"/>                    |       <acc value="0.4084177596" flag="0"/>
  <vel value="0.4324893035" flag="0"/>                    |       <vel value="0.1096524787" flag="0"/>
  <psa03 value="3.4138858626" flag="0"/>                  |       <psa03 value="0.9107063442" flag="0"/>
  <psa10 value="0.3917531014" flag="0"/>                  |       <psa10 value="0.1067686554" flag="0"/>
  <psa30 value="0.0550700525" flag="0"/>                  |       <psa30 value="0.0137542494" flag="0"/>
</comp>                                                         </comp>
<comp name="10.HHZ">                                      |     <comp name="20.BNZ">
  <acc value="0.8925252623" flag="0"/>                    |       <acc value="0.2127553540" flag="0"/>
  <vel value="0.2790970367" flag="0"/>                    |       <vel value="0.0671373821" flag="0"/>
  <psa03 value="1.3901107669" flag="0"/>                  |       <psa03 value="0.3529664395" flag="0"/>
  <psa10 value="0.2443403190" flag="0"/>                  |       <psa10 value="0.0627944020" flag="0"/>
  <psa30 value="0.0250792215" flag="0"/>                  |       <psa30 value="0.0064768656" flag="0"/>
</comp>                                                         </comp>
</station>                                                      </station>
`

and a consistent 1/4 ratio as identified by jesse between HH and BN on RIZ until a n strong motion issue along 2018 until a replacement in 2019 sept FYI @SquirrelKnight @elidana @ozym

Need to check if the HH Vs BN/HN ratio is still 4 in 2021 (after a Weak inst visit as 2020 Nov 10th)

event Sep 2021 2021p715493 M5.1 and August 2021 2021p638513 M 5.5

Results for 2021p715493 M5.5 GLKZ and RIZ Weak consistent output ~1-2%g Vs RIZ strong motion 0.3%g
Ratio RIZ HH Vs SM is 1/4 still

<stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml"   <stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml"
  <station code="GLKZ" name="GLKZ" netid="NZ" insttype="Trill     <station code="GLKZ" name="GLKZ" netid="NZ" insttype="Trill
    <comp name="10.HHE">                                            <comp name="10.HHE">
      <acc value="1.2434342470" flag="0"/>                            <acc value="1.2434342470" flag="0"/>
      <vel value="0.3226558428" flag="0"/>                            <vel value="0.3226558428" flag="0"/>
      <psa03 value="1.1799961255" flag="0"/>                          <psa03 value="1.1799961255" flag="0"/>
      <psa10 value="0.1873236385" flag="0"/>                          <psa10 value="0.1873236385" flag="0"/>
      <psa30 value="0.0122821212" flag="0"/>                          <psa30 value="0.0122821212" flag="0"/>
    </comp>                                                         </comp>
    <comp name="10.HHN">                                            <comp name="10.HHN">
      <acc value="1.0757444905" flag="0"/>                            <acc value="1.0757444905" flag="0"/>
      <vel value="0.2776559241" flag="0"/>                            <vel value="0.2776559241" flag="0"/>
      <psa03 value="1.1076307169" flag="0"/>                          <psa03 value="1.1076307169" flag="0"/>
      <psa10 value="0.1566439131" flag="0"/>                          <psa10 value="0.1566439131" flag="0"/>
      <psa30 value="0.0104541844" flag="0"/>                          <psa30 value="0.0104541844" flag="0"/>
    </comp>                                                         </comp>
    <comp name="10.HHZ">                                            <comp name="10.HHZ">
      <acc value="1.0311887968" flag="0"/>                            <acc value="1.0311887968" flag="0"/>
      <vel value="0.1782112942" flag="0"/>                            <vel value="0.1782112942" flag="0"/>
      <psa03 value="0.7133046028" flag="0"/>                          <psa03 value="0.7133046028" flag="0"/>
      <psa10 value="0.0506322085" flag="0"/>                          <psa10 value="0.0506322085" flag="0"/>
      <psa30 value="0.0068765641" flag="0"/>                          <psa30 value="0.0068765641" flag="0"/>
    </comp>                                                         </comp>
  </station>                                                      </station>
  <station code="RIZ" name="RIZ" netid="NZ" insttype="Trilliu |   <station code="RIZ" name="RIZ" netid="NZ" insttype="FBA-ES-
    <comp name="10.HHE">                                      |     <comp name="20.HNE">
      <acc value="1.5805146737" flag="0"/>                    |       <acc value="0.3822916356" flag="0"/>
      <vel value="0.6992911070" flag="0"/>                    |       <vel value="0.1721719665" flag="0"/>
      <psa03 value="3.9067508958" flag="0"/>                  |       <psa03 value="0.9890861015" flag="0"/>
      <psa10 value="0.3648450089" flag="0"/>                  |       <psa10 value="0.0904114417" flag="0"/>
      <psa30 value="0.0254664582" flag="0"/>                  |       <psa30 value="0.0064493938" flag="0"/>
    </comp>                                                         </comp>
    <comp name="10.HHN">                                      |     <comp name="20.HNN">
      <acc value="2.5137795811" flag="0"/>                    |       <acc value="0.5764419711" flag="0"/>
      <vel value="0.6970251287" flag="0"/>                    |       <vel value="0.1708662387" flag="0"/>
      <psa03 value="2.7988747423" flag="0"/>                  |       <psa03 value="0.7049039446" flag="0"/>
      <psa10 value="0.1880126050" flag="0"/>                  |       <psa10 value="0.0498220628" flag="0"/>
      <psa30 value="0.0116712685" flag="0"/>                  |       <psa30 value="0.0030854582" flag="0"/>
    </comp>                                                         </comp>
    <comp name="10.HHZ">                                      |     <comp name="20.HNZ">
      <acc value="1.1997534487" flag="0"/>                    |       <acc value="0.3079534936" flag="0"/>
      <vel value="0.2771769896" flag="0"/>                    |       <vel value="0.0701502819" flag="0"/>
      <psa03 value="1.4687793185" flag="0"/>                  |       <psa03 value="0.3726367741" flag="0"/>
      <psa10 value="0.0740232073" flag="0"/>                  |       <psa10 value="0.0187514684" flag="0"/>
      <psa30 value="0.0093899779" flag="0"/>                  |       <psa30 value="0.0023705178" flag="0"/>
    </comp>                                                         </comp>
  </station>                                                      </station>
</stationlist>                                                  </stationlist>

Check on event 2021p876265 <100Kmdistance M5.7 depth 30km OT 2021-11-21T05:12:29Z using MMKS and RIZ strong motion (measuer should consistent)

As shown Below There is a PGA ratio in the measure netween MMKS and RIZ strong motion

!DOCTYPE earthquake SYSTEM "stationlist.dtd">
<stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml">
  <station code="MMKS" name="MMKS" netid="NZ" insttype="Titan" lat="-29.2673" lon="-177.908">
    <comp name="20.HNE">
      <acc value="2.3375445330" flag="0"/>
      <vel value="1.5666094641" flag="0"/>
      <psa03 value="11.1049878581" flag="0"/>
      <psa10 value="1.4099762785" flag="0"/>
      <psa30 value="0.1446413040" flag="0"/>
    </comp>
    <comp name="20.HNN">
      <acc value="2.8647678642" flag="0"/>
      <vel value="2.6098697229" flag="0"/>
      <psa03 value="8.9490359984" flag="0"/>
      <psa10 value="3.5219782617" flag="0"/>
      <psa30 value="0.2265863963" flag="0"/>
    </comp>
    <comp name="20.HNZ">
      <acc value="0.8258273479" flag="0"/>
      <vel value="0.3882073192" flag="0"/>
      <psa03 value="2.9999018243" flag="0"/>
      <psa10 value="0.2759690486" flag="0"/>
      <psa30 value="0.0506806627" flag="0"/>
    </comp>
  </station>
  <station code="RIZ" name="RIZ" netid="NZ" insttype="FBA-ES-T-ISO" lat="-29.2449" lon="-177.929">
    <comp name="20.HNE">
      <acc value="0.5461324014" flag="0"/>
      <vel value="0.2547292779" flag="0"/>
      <psa03 value="1.6095682664" flag="0"/>
      <psa10 value="0.2454820776" flag="0"/>
      <psa30 value="0.0254289251" flag="0"/>
    </comp>
    <comp name="20.HNN">
      <acc value="0.6653214861" flag="0"/>
      <vel value="0.3193675578" flag="0"/>
      <psa03 value="2.2627113708" flag="0"/>
      <psa10 value="0.2506421204" flag="0"/>
      <psa30 value="0.0179910220" flag="0"/>
    </comp>
    <comp name="20.HNZ">
      <acc value="0.2648957490" flag="0"/>
      <vel value="0.0937906178" flag="0"/>
      <psa03 value="0.7140915188" flag="0"/>
      <psa10 value="0.0917864367" flag="0"/>
      <psa30 value="0.0093684920" flag="0"/>
    </comp>
  </station>
</stationlist>

---------- RIZ strong, Bias confirmed

Potential legacy RIZ SM 2016Sept to Now (2021) with debatable measures output
Actions when all confirmed with other sources :
- to reconfigure and fix the SM from "Now" (remotely or on the field)
- to amend the past data 2016-"Now" either with the data or the metadata
- To document this for later Note: in addition to RIZ and GLKS BB to compare strong motion parameters , MMKS strong is a new station on the island since 2021-10-24 (See above RIZ strong pretty low wrt MMKS)

FYI @elidana @mnaguit

Perhaps to be communicated into a delta meeting

Summary most likely scenarios (today)

Season1: RIZ strong from 2012 (and most likely before) to 2016 September OK
Season2: Sep 2016 to ~ 2018.261 waveform Can be used but requires caution on the measures
Season3: Sep 2018 to 2019.264 Say Kaputt - not usable
Season4: Sep2019 to 2021 and TBC Can be used but requires caution on the measures
Spin-off: from Oct2021 MMKS strong can be used. (nearby instruement)

FYI @SquirrelKnight @elidana

[x] testing with a response with Obsidian4x fix Event close t Raul island M>5 D<100km on 2021p87626 NOTE: Delta PR in progress Basically gain is corrected with relevant response parameters

Output:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!DOCTYPE earthquake SYSTEM "stationlist.dtd">
<stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml">
  <station code="RIZ" name="RIZ" netid="NZ" insttype="FBA-ES-T-ISO" lat="-29.2449" lon="-177.929">
    <comp name="20.HNE">
      <acc value="2.1806946883" flag="0"/>
      <vel value="1.0171284216" flag="0"/>
      <psa03 value="6.4269707508" flag="0"/>
      <psa10 value="0.9802045469" flag="0"/>
      <psa30 value="0.1015371409" flag="0"/>
    </comp>
    <comp name="20.HNN">
      <acc value="2.6566140876" flag="0"/>
      <vel value="1.2752276475" flag="0"/>
      <psa03 value="9.0349568291" flag="0"/>
      <psa10 value="1.0008084841" flag="0"/>
      <psa30 value="0.0718377561" flag="0"/>
    </comp>
    <comp name="20.HNZ">
      <acc value="1.0577229064" flag="0"/>
      <vel value="0.3745039464" flag="0"/>
      <psa03 value="2.8513517537" flag="0"/>
      <psa10 value="0.3665012273" flag="0"/>
      <psa30 value="0.0374081832" flag="0"/>
    </comp>
  </station>
</stationlist>

TO BE compared to MMKS strong for the same event about the same place for instance:cf https://github.com/GeoNet/help/issues/85#issuecomment-977450927 (this could be using also the colocated RIZ HH values too)

<stationlist created="" xmlns="ch.ethz.sed.shakemap.usgs.xml">
  <station code="MMKS" name="MMKS" netid="NZ" insttype="Titan" lat="-29.2673" lon="-177.908">
    <comp name="20.HNE">
      <acc value="2.3375445330" flag="0"/>
      <vel value="1.5666094641" flag="0"/>
      <psa03 value="11.1049878581" flag="0"/>
      <psa10 value="1.4099762785" flag="0"/>
      <psa30 value="0.1446413040" flag="0"/>
    </comp>
    <comp name="20.HNN">
      <acc value="2.8647678642" flag="0"/>
      <vel value="2.6098697229" flag="0"/>
      <psa03 value="8.9490359984" flag="0"/>
      <psa10 value="3.5219782617" flag="0"/>
      <psa30 value="0.2265863963" flag="0"/>
    </comp>
    <comp name="20.HNZ">
      <acc value="0.8258273479" flag="0"/>
      <vel value="0.3882073192" flag="0"/>
      <psa03 value="2.9999018243" flag="0"/>
      <psa10 value="0.2759690486" flag="0"/>
      <psa30 value="0.0506806627" flag="0"/>
    </comp>
  </station>

Results are consistent and makes sense - I don t think more checking is required from my side users and others coudl give it a go.

[ ] Need documentation and information somewhere about the issue in past (till "now" and the fix)
[x] Need a metadata deploy date for users to be aware of the change (there is a ticket in geonet with the list of SM to deal with ) Test material: Metadata_RIZObsidianTest.xml.txt

FYI @elidana @mnaguit @SquirrelKnight

...almost there ... :)

@SquirrelKnight This instrument related issue will be addressed soon while patching the metadata. it will encompass a series of sites as per https://github.com/GeoNet/tickets/issues/9943 over identified period of times. (related to Obsidian datalogger 4X response)

cheers FYI @elidana @mnaguit

That is wonderful to hear. Thank you for all of the hard work!

On Wed, Feb 16, 2022 at 12:55 PM Jerome Salichon @.***> wrote:

@SquirrelKnight https://github.com/SquirrelKnight This instrument related issue will be addressed soon while patching the metadata. it will encompass a series of sites as per GeoNet/tickets#9943 https://github.com/GeoNet/tickets/issues/9943 over identified period of times. (related to Obsidian datalogger 4X response)

cheers FYI @elidana https://github.com/elidana @mnaguit https://github.com/mnaguit

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PR was merged correction applied today @SquirrelKnight documentaion to follow up with the sites affected

Former overall sensitivity for the RIZ SM streams as 1.70934447112192×10⁰⁶ counts/m.s-2
New/updated is ~ 4.3e+5 counts/m.s-2

Re-open if additional issues

GeoNet / help

RIZ issue with broadband vs. accelerometer comparison #85