TVZ seismometers in 1980s and 1990s not shown in Data Discovery>Sensor Map

[iceseismic]

Trying to use https://www.geonet.org.nz/data/network/sensor/search to plot the GeoNet seismometers operational in the 198s and early 1990s ( e.g. TAZ (SHZ), EDRZ (SHZ), PATZ (SHZ) , HARZ (SHZ) ) ; Trying sensor operational date from 1980-01-01 to 1996-01-01 ; ticking "All sensor types" for the Sensor type : the map show on the web page doesn't show any of the operational seismometers for this time period. All it shows is GULV (operational in 1995)

Its important to be able to see which GeoNet stations/sensors were operational for which time periods.

[elidana]

Hello @iceseismic , and thanks for reaching out!

Unfortunately you might have bumped into an issue of the GeoNet sensor search application and how it gather information for our seismometers network.
I will check this with the team, but I confirm that short-period stations that were operational in the time period of your interest are not properly represented in the map search feature.

While we check with the team and discuss if this can be easily fixed, I can suggest an alternative option that might require some work at your end, but hopefully not too much.

Our GeoNet metadata database (delta, https://doi.org/10.21420/0VY2-C144) is openly available via github.

You can find a list of all GeoNet stations, their coordinates and operational dates (start and end date) here:
https://github.com/GeoNet/delta/tree/main/network

In there there are different files that list the various networks we operate, but if I understand correctly what you are looking for, I suggest to look at the following file:
https://github.com/GeoNet/delta/blob/main/network/sites.csv

Seismometers such as TAZ, EDRZ, and others in your list are represented there, with the correct start and end date. All broadband and short-period seismometers has a location code 10 (you can also find there other types of stations that are probably not of interest, such as strong motion, location code 20, and tsunami monitoring gauges, location code 40 and so on).

I hope this helps a bit, and thanks a lot for pointing this issue out, much appreciated!