That’s the one. These directions are the geographic ones. Up is, and forgive me for the complexity, the displacement in the direction perpendicular to the ITRF08 spheroid at the location of the GNSS site. You can interpret this as meaning “up is vertical displacement” with the caveat that the vertical direction changes around the Earth.
Thick as mud?
Thanks,
Sam
From: Joshua Bishop jcork52@gmail.com
Sent: Wednesday, 15 January 2020 22:54
To: Sam Taylor-Offord s.taylor-offord@gns.cri.nz
Subject: Re: GeoNet data for Kaikoura Vertical displacement graph
Hi Sam,
So just to clarify, east means the amount of displacement in the east direction, north means displacement in the northern direction, and up is basically vertical displacement?
Thanks for the clarification,
Kind regards,
Josh
On Tue, 14 Jan 2020 at 19:15, Sam Taylor-Offord s.taylor-offord@gns.cri.nz wrote:
Hi Josh,
e, n, and u are the three components we decompose the displacement into: east, north, and up. The displacement is really a vector in 3 dimensions, but it's much easier to look at it in each dimension separately, especially over time.
I believe that the displacement in each direction is relative to the value in the middle of the timeseries. So the 0 value will occur at the time of this data. All this data is relative to this point. We don't provide the absolute data (i.e. coordinates of each point), but this relative data should suffice for most applications. Apologies if the labelling on the graphs is not too clear!
Thanks,
Sam
From: Joshua Bishop jcork52@gmail.com
Sent: Tuesday, January 14, 2020 10:57:46 PM
To: Sam Taylor-Offord s.taylor-offord@gns.cri.nz
Subject: Re: GeoNet data for Kaikoura Vertical displacement graph
Hi Sam,
Thank you for your response, I am finding the data very helpful, however, I was just wondering what the components (e, n and u) mean, and when in the data it says 'displacement from original position', what actually is the original position, and what is 0 on the graphs reference to?
Thank you for your help,
Kind regards,
Josh
Joshua Bishop
UEA School of Environmental Sciences Undergraduate Student
<jcork52@gmail.com>
If you know which sites you want data for, and/or which components (north (n), east (e), or up (u)) then you can just change the queries I include in this email, e.g. change “KAIK” to whichever site code you are interested in or “u” to whichever component you are interested in.
Let me know if you have any trouble,
Thanks,
Sam
Sam Taylor-Offord I Science Operations Specialist
Science Operations and Data team
Data Science and Geohazards Monitoring Department
GNS Science I Te Pῡ Ao
1 Fairway Drive, Avalon 5010, PO Box 30368, Lower Hutt 5040, New Zealand
Ph +64 (0) 4 570 4026
http://www.geonet.org.nz/ I Email: s.taylor-offord@gns.cri.nz
From: Joshua Bishop jcork52@gmail.com
Sent: Friday, 10 January 2020 11:00
To: info@geonet.org.nz
Subject: GeoNet data for Kaikoura Vertical displacement graph
To whom it may concern,
I am currently writing a paper on the geological recovery of the Kaikoura coastline after the 2016 earthquake, and am attempting to get the data so that I can plot it in excel to create my own graphs of the elevation of the land before and after the earthquake at the monitoring station (found via the link https://www.geonet.org.nz/data/gnss/map). I am struggling to find how I can get hold of the data in a form that I can out into excel, so I was wondering if you could help me with this. Any help you could provide would be much appreciated.
Kind regards,
Joshua Bishop
Joshua Bishop
UEA School of Environmental Sciences Undergraduate Student
<jcork52@gmail.com>
Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents.
Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents.
--
null
Hi Josh,
That’s the one. These directions are the geographic ones. Up is, and forgive me for the complexity, the displacement in the direction perpendicular to the ITRF08 spheroid at the location of the GNSS site. You can interpret this as meaning “up is vertical displacement” with the caveat that the vertical direction changes around the Earth.
Thick as mud?
Thanks,
Sam
From: Joshua Bishop jcork52@gmail.com Sent: Wednesday, 15 January 2020 22:54 To: Sam Taylor-Offord s.taylor-offord@gns.cri.nz Subject: Re: GeoNet data for Kaikoura Vertical displacement graph
Hi Sam,
So just to clarify, east means the amount of displacement in the east direction, north means displacement in the northern direction, and up is basically vertical displacement?
Thanks for the clarification,
Kind regards, Josh
On Tue, 14 Jan 2020 at 19:15, Sam Taylor-Offord s.taylor-offord@gns.cri.nz wrote: Hi Josh, e, n, and u are the three components we decompose the displacement into: east, north, and up. The displacement is really a vector in 3 dimensions, but it's much easier to look at it in each dimension separately, especially over time. I believe that the displacement in each direction is relative to the value in the middle of the timeseries. So the 0 value will occur at the time of this data. All this data is relative to this point. We don't provide the absolute data (i.e. coordinates of each point), but this relative data should suffice for most applications. Apologies if the labelling on the graphs is not too clear! Thanks, Sam
From: Joshua Bishop jcork52@gmail.com Sent: Tuesday, January 14, 2020 10:57:46 PM To: Sam Taylor-Offord s.taylor-offord@gns.cri.nz Subject: Re: GeoNet data for Kaikoura Vertical displacement graph
Hi Sam,
Thank you for your response, I am finding the data very helpful, however, I was just wondering what the components (e, n and u) mean, and when in the data it says 'displacement from original position', what actually is the original position, and what is 0 on the graphs reference to?
Thank you for your help,
Kind regards, Josh
Joshua Bishop UEA School of Environmental Sciences Undergraduate Student <jcork52@gmail.com>
On Mon, 13 Jan 2020 at 23:25, Sam Taylor-Offord s.taylor-offord@gns.cri.nz wrote: Hi Joshua,
What I imagine you will want is available from our FITS database. You can generate plots of elevation directly from the database API: https://fits.geonet.org.nz/plot?siteID=KAIK&typeID=u
Or you can download the data in a CSV format which you can open in Excel: https://fits.geonet.org.nz/plot?siteID=KAIK&typeID=u
You can find the full documentation on the FITS database and API here: https://www.geonet.org.nz/data/tools/FITS
If you need the precise locations of our GNSS sites you can pull them from our delta database, specifically the marks.csv: https://github.com/GeoNet/delta/blob/master/network/marks.csv
If you know which sites you want data for, and/or which components (north (n), east (e), or up (u)) then you can just change the queries I include in this email, e.g. change “KAIK” to whichever site code you are interested in or “u” to whichever component you are interested in.
Let me know if you have any trouble,
Thanks,
Sam
Sam Taylor-Offord I Science Operations Specialist Science Operations and Data team Data Science and Geohazards Monitoring Department GNS Science I Te Pῡ Ao 1 Fairway Drive, Avalon 5010, PO Box 30368, Lower Hutt 5040, New Zealand Ph +64 (0) 4 570 4026 http://www.geonet.org.nz/ I Email: s.taylor-offord@gns.cri.nz
From: Joshua Bishop jcork52@gmail.com Sent: Friday, 10 January 2020 11:00 To: info@geonet.org.nz Subject: GeoNet data for Kaikoura Vertical displacement graph
To whom it may concern,
I am currently writing a paper on the geological recovery of the Kaikoura coastline after the 2016 earthquake, and am attempting to get the data so that I can plot it in excel to create my own graphs of the elevation of the land before and after the earthquake at the monitoring station (found via the link https://www.geonet.org.nz/data/gnss/map). I am struggling to find how I can get hold of the data in a form that I can out into excel, so I was wondering if you could help me with this. Any help you could provide would be much appreciated.
Kind regards, Joshua Bishop
Joshua Bishop UEA School of Environmental Sciences Undergraduate Student <jcork52@gmail.com>
Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents. Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents. -- null