Kia ora Kevin

Thank you for your email. We acknowledge receipt of your OIA request below.

We will respond as soon as possible and no later than Monday 19 August 2024, being 20 working days after the day your request was received. If we are unable to respond to your request by then, we will notify you of an extension of that timeframe.

Ngā mihi
Sarah

-----Original Message-----
From: Kevin Smith <[FOI #27723 email]>
Sent: Friday, July 19, 2024 12:03 PM
To: Enquiries <[email address]>
Subject: Official Information request - Sea Level measuring equipment in Buller

Dear National Institute of Water and Atmospheric Research Limited,

A sea level buoy has recently been deployed in Westport.

I am requesting correspondence about the level measuring equipment that was used for previous recordings.

The chart at the beginning of the recent publication 'West Coast Region Coastal Hazards mapping methodology shows plots for Charleston and Westport.
This NIWA and WCRC booklet is dated 29 April 2024.

Could you please provide copies of the correspondence pertaining to those two sites ?

I am seeking info on the data gathering, site maintenance, site calibrations and the compensation methods applied.
ie, How the data was obtained, how it was checked and then what atmospheric and sea pressures, temperatures and tidal factors were subsequently applied.

The same document refers to LiDAR measurements.

Could you please advise what vertical changes have been detected in the Buller coastal region over the past decades ?

I have heard from a local surveyor that a rise in ground level has been recorded.
This would be by a number of measuring techniques so I am interested in the rate of rise and the method used.

Yours faithfully,

Kevin Smith

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

This is an Official Information request made via the FYI website.

Please use this email address for all replies to this request:
[FOI #27723 email]

Is [NIWA request email] the wrong address for Official Information requests to National Institute of Water and Atmospheric Research Limited? If so, please contact us using this form:
https://fyi.org.nz/change_request/new?bo...

Disclaimer: This message and any reply that you make will be published on the internet. Our privacy and copyright policies:
https://fyi.org.nz/help/officers

If you find this service useful as an Official Information officer, please ask your web manager to link to us from your organisation's OIA or LGOIMA page.

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

[https://www.niwa.co.nz/static/niwa-2018-... <https://www.niwa.co.nz/>
Sarah Fraser
Communications Manager

+64-7-856-1790
+64-21-609-703
National Institute of Water & Atmospheric Research Ltd (NIWA)
Gate 10 Silverdale Road Hillcrest Hamilton New Zealand
Connect with NIWA: niwa.co.nz<https://www.niwa.co.nz/> Facebook<https://www.facebook.com/nzniwa> LinkedIn<https://www.linkedin.com/company/niwa> Twitter<https://twitter.com/niwa_nz> Instagram<https://www.instagram.com/niwa_science> YouTube<https://www.youtube.com/channel/UCJ-j3ML...>
To ensure compliance with legal requirements and to maintain cyber security standards, NIWA's IT systems are subject to ongoing monitoring, activity logging and auditing. This monitoring and auditing service may be provided by third parties. Such third parties can access information transmitted to, processed by and stored on NIWA's IT systems.
Note: This email is intended solely for the use of the addressee and may contain information that is confidential or subject to legal professional privilege. If you receive this email in error please immediately notify the sender and delete the email.

hide quoted sections

Kia ora Kevin

We have transferred part of your request to GNS as the information to which your request relates, namely the last question relating to vertical rise, is not held by us but is believed to be held by is believed to be more closely connected with the functions of GNS.

In these circumstances, we are required by section 14 of the OIA to transfer your request.

You will hear further from GNS concerning that part of your request.

Ngā mihi
Sarah

-----Original Message-----
From: Sarah Fraser
Sent: Monday, July 22, 2024 11:00 AM
To: [FOI #27723 email]
Subject: FW: Official Information request - Sea Level measuring equipment in Buller

Kia ora Kevin

Thank you for your email. We acknowledge receipt of your OIA request below.

We will respond as soon as possible and no later than Monday 19 August 2024, being 20 working days after the day your request was received. If we are unable to respond to your request by then, we will notify you of an extension of that timeframe.

Ngā mihi
Sarah

-----Original Message-----
From: Kevin Smith <[FOI #27723 email]>
Sent: Friday, July 19, 2024 12:03 PM
To: Enquiries <[email address]>
Subject: Official Information request - Sea Level measuring equipment in Buller

Dear National Institute of Water and Atmospheric Research Limited,

A sea level buoy has recently been deployed in Westport.

I am requesting correspondence about the level measuring equipment that was used for previous recordings.

The chart at the beginning of the recent publication 'West Coast Region Coastal Hazards mapping methodology shows plots for Charleston and Westport.
This NIWA and WCRC booklet is dated 29 April 2024.

Could you please provide copies of the correspondence pertaining to those two sites ?

I am seeking info on the data gathering, site maintenance, site calibrations and the compensation methods applied.
ie, How the data was obtained, how it was checked and then what atmospheric and sea pressures, temperatures and tidal factors were subsequently applied.

The same document refers to LiDAR measurements.

Could you please advise what vertical changes have been detected in the Buller coastal region over the past decades ?

I have heard from a local surveyor that a rise in ground level has been recorded.
This would be by a number of measuring techniques so I am interested in the rate of rise and the method used.

Yours faithfully,

Kevin Smith

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

This is an Official Information request made via the FYI website.

Please use this email address for all replies to this request:
[FOI #27723 email]

Is [NIWA request email] the wrong address for Official Information requests to National Institute of Water and Atmospheric Research Limited? If so, please contact us using this form:
https://fyi.org.nz/change_request/new?bo...

Disclaimer: This message and any reply that you make will be published on the internet. Our privacy and copyright policies:
https://fyi.org.nz/help/officers

If you find this service useful as an Official Information officer, please ask your web manager to link to us from your organisation's OIA or LGOIMA page.

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

[https://www.niwa.co.nz/static/niwa-2018-... <https://www.niwa.co.nz/>
Sarah Fraser
Communications Manager

+64-7-856-1790
+64-21-609-703
National Institute of Water & Atmospheric Research Ltd (NIWA)
Gate 10 Silverdale Road Hillcrest Hamilton New Zealand
Connect with NIWA: niwa.co.nz<https://www.niwa.co.nz/> Facebook<https://www.facebook.com/nzniwa> LinkedIn<https://www.linkedin.com/company/niwa> Twitter<https://twitter.com/niwa_nz> Instagram<https://www.instagram.com/niwa_science> YouTube<https://www.youtube.com/channel/UCJ-j3ML...>
To ensure compliance with legal requirements and to maintain cyber security standards, NIWA's IT systems are subject to ongoing monitoring, activity logging and auditing. This monitoring and auditing service may be provided by third parties. Such third parties can access information transmitted to, processed by and stored on NIWA's IT systems.
Note: This email is intended solely for the use of the addressee and may contain information that is confidential or subject to legal professional privilege. If you receive this email in error please immediately notify the sender and delete the email.

hide quoted sections

Kia ora Kevin,

We accept the partial transfer request from NIWA for the last question relating to vertical rise from and acknowledge receipt of your OIA request below.

We will respond as soon as possible and no later than Wednesday 11 September 2024, being 20 working days after the day your request was received by GNS Science. If we are unable to respond to your request by then, we will notify you of an extension of that timeframe.

Ngā mihi,
Trinita

-----Original Message-----
From: Sarah Fraser <[email address]>
Sent: Wednesday, August 14, 2024 4:13 PM
To: [FOI #27723 email]
Subject: RE: Official Information request - Sea Level measuring equipment in Buller

Kia ora Kevin

We have transferred part of your request to GNS as the information to which your request relates, namely the last question relating to vertical rise, is not held by us but is believed to be held by is believed to be more closely connected with the functions of GNS.

In these circumstances, we are required by section 14 of the OIA to transfer your request.

You will hear further from GNS concerning that part of your request.

Ngā mihi
Sarah

-----Original Message-----
From: Sarah Fraser
Sent: Monday, July 22, 2024 11:00 AM
To: [FOI #27723 email]
Subject: FW: Official Information request - Sea Level measuring equipment in Buller

Kia ora Kevin

Thank you for your email. We acknowledge receipt of your OIA request below.

We will respond as soon as possible and no later than Monday 19 August 2024, being 20 working days after the day your request was received. If we are unable to respond to your request by then, we will notify you of an extension of that timeframe.

Ngā mihi
Sarah

-----Original Message-----
From: Kevin Smith <[FOI #27723 email]>
Sent: Friday, July 19, 2024 12:03 PM
To: Enquiries <[email address]>
Subject: Official Information request - Sea Level measuring equipment in Buller

Dear National Institute of Water and Atmospheric Research Limited,

A sea level buoy has recently been deployed in Westport.

I am requesting correspondence about the level measuring equipment that was used for previous recordings.

The chart at the beginning of the recent publication 'West Coast Region Coastal Hazards mapping methodology shows plots for Charleston and Westport.
This NIWA and WCRC booklet is dated 29 April 2024.

Could you please provide copies of the correspondence pertaining to those two sites ?

I am seeking info on the data gathering, site maintenance, site calibrations and the compensation methods applied.
ie, How the data was obtained, how it was checked and then what atmospheric and sea pressures, temperatures and tidal factors were subsequently applied.

The same document refers to LiDAR measurements.

Could you please advise what vertical changes have been detected in the Buller coastal region over the past decades ?

I have heard from a local surveyor that a rise in ground level has been recorded.
This would be by a number of measuring techniques so I am interested in the rate of rise and the method used.

Yours faithfully,

Kevin Smith

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

This is an Official Information request made via the FYI website.

Please use this email address for all replies to this request:
[FOI #27723 email]

Is [NIWA request email] the wrong address for Official Information requests to National Institute of Water and Atmospheric Research Limited? If so, please contact us using this form:
https://fyi.org.nz/change_request/new?bo...

Disclaimer: This message and any reply that you make will be published on the internet. Our privacy and copyright policies:
https://fyi.org.nz/help/officers

If you find this service useful as an Official Information officer, please ask your web manager to link to us from your organisation's OIA or LGOIMA page.

-------------------------------------------------------------------
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.

hide quoted sections

Kia ora Kevin

 

Please find responses to your request below.

 

 

1.      A sea level buoy has recently been deployed in Westport.

We understand WCRC has already responded to you on this matter.

 

2.      I am requesting correspondence about the level measuring equipment
that was used for previous recordings.

The chart at the beginning of the recent publication 'West Coast Region
Coastal Hazards mapping methodology shows plots for Charleston and
Westport.

This NIWA and WCRC booklet is dated 29 April 2024.

Could you please provide copies of the correspondence pertaining to those
two sites?

I am seeking info on the data gathering, site maintenance, site
calibrations and the compensation methods applied.

ie, How the data was obtained, how it was checked and then what
atmospheric and sea pressures, temperatures and tidal factors were
subsequently applied.

[1]A graph with red and blue lines Description automatically generated

The figure above is the one you refer to. It summarises the mean sea level
from several tide gauges on the South Island. Data is presented in annual
means (averaged value for the year but years with less than 80% of data
coverage were rejected) and vertically shifted to an arbitrary common
datum of Mean Sea Level for 2000 (so all gauges are at 0.0 for the year
2000) for visualisation purposes.

 

The Lyttelton data is from Stats NZ coastal sea level database. You can
find original data here
[2]https://www.stats.govt.nz/indicators/coa...). This
dataset has been corrected for atmospheric pressure and quality
controlled. See details here:
[3]https://environment.govt.nz/assets/publi....

 

The Charleston data is from the NIWA-operated Charleston gauge (site
92899). No atmospheric pressure correction was applied. The pressure
sensor is a Paroscientific, and is part of a bubbler system using
compressed nitrogen. The recorder is a Campbell CR10 with cellphone
telemetry, recording every 5 minutes to a resolution of 1 mm. NIWA
Greymouth team operated the sensor from Sept 1997 until June 2011, with
audited data. The whole-of-record data review document is attached. LINZ
has operated the gauge since 2015.

 

The Jacksons Bay data is from the Australian Bureau of Meteorology (BoM)
Database from 1998 to 2012 for site 186299 (12 min data) and, from 2013 to
2023, for site IDO70014 (1 min data).  No atmospheric pressure correction
was applied to the BoM data.

 

The Westport data is from the Port archive data as provided to us.
Questions as to whether any atmospheric pressure corrections were applied
or how data has been quality controlled would have to go to the Port.

 

3.      The same document refers to LiDAR measurements.

Could you please advise what vertical changes have been detected in the
Buller coastal region over the past decades ?

I have heard from a local surveyor that a rise in ground level has been
recorded.

This would be by a number of measuring techniques so I am interested in
the rate of rise and the method used.

 

We have transferred this part of your request to GNS, as it is not
information we hold.

 

Please note, under section 28(3) of the Act, you have the right to seek an
investigation and review by the Ombudsman of this decision.

 

Ngā mihi

Sarah

 

 

-----Original Message-----
From: Enquiries <[email address]>
Sent: Monday, July 22, 2024 9:41 AM
To: Sarah Fraser <[email address]>
Subject: FW: Official Information request - Sea Level measuring equipment
in Buller

 

 

-----Original Message-----

From: Kevin Smith <[4][FOI #27723 email]>

Sent: Friday, July 19, 2024 12:03 PM

To: Enquiries <[5][email address]>

Subject: Official Information request - Sea Level measuring equipment in
Buller

 

Dear National Institute of Water and Atmospheric Research Limited,

 

A sea level buoy has recently been deployed in Westport.

 

I am requesting correspondence about the level measuring equipment that
was used for previous recordings.

 

The chart at the beginning of the recent publication 'West Coast Region
Coastal Hazards mapping methodology shows plots for Charleston and
Westport.

This NIWA and WCRC booklet is dated 29 April 2024.

 

Could you please provide copies of the correspondence pertaining to those
two sites ?

 

I am seeking info on the data gathering, site maintenance, site
calibrations and the compensation methods applied.

ie, How the data was obtained, how it was checked and then what
atmospheric and sea pressures, temperatures and tidal factors were
subsequently applied.

 

The same document refers to LiDAR measurements.

 

Could you please advise what vertical changes have been detected in the
Buller coastal region over the past decades ?

 

I have heard from a local surveyor that a rise in ground level has been
recorded.

This would be by a number of measuring techniques so I am interested in
the rate of rise and the method used.

 

Yours faithfully,

 

Kevin Smith

 

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

 

This is an Official Information request made via the FYI website.

 

Please use this email address for all replies to this request:

[6][FOI #27723 email]

 

Is [7][NIWA request email] the wrong address for Official Information
requests to National Institute of Water and Atmospheric Research Limited?
If so, please contact us using this form:

[8]https://aus01.safelinks.protection.outlo...

 

Disclaimer: This message and any reply that you make will be published on
the internet. Our privacy and copyright policies:

[9]https://aus01.safelinks.protection.outlo...

 

If you find this service useful as an Official Information officer, please
ask your web manager to link to us from your organisation's OIA or LGOIMA
page.

 

 

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

 

Sarah Fraser
Communications Manager
+64-7-856-1790
[10][IMG] +64-21-609-703
National Institute of Water & Atmospheric Research Ltd (NIWA)
Gate 10 Silverdale Road Hillcrest Hamilton New Zealand
Connect with NIWA: [11]niwa.co.nz [12]Facebook [13]LinkedIn
[14]Twitter [15]Instagram [16]YouTube

To ensure compliance with legal requirements and to maintain cyber
security standards, NIWA's IT systems are subject to ongoing monitoring,
activity logging and auditing. This monitoring and auditing service may be
provided by third parties. Such third parties can access information
transmitted to, processed by and stored on NIWA's IT systems.
Note: This email is intended solely for the use of the addressee and may
contain information that is confidential or subject to legal professional
privilege. If you receive this email in error please immediately notify
the sender and delete the email.

References

Visible links
2. https://www.stats.govt.nz/indicators/coa...
3. https://environment.govt.nz/assets/publi...
4. mailto:[FOI #27723 email]
5. mailto:[email address]
6. mailto:[FOI #27723 email]
7. mailto:[NIWA request email]
8. https://fyi.org.nz/change_request/new?bo...
9. https://fyi.org.nz/help/officers
10. https://www.niwa.co.nz/
11. https://www.niwa.co.nz/
12. https://www.facebook.com/nzniwa
13. https://www.linkedin.com/company/niwa
14. https://twitter.com/niwa_nz
15. https://www.instagram.com/niwa_science
16. https://www.youtube.com/channel/UCJ-j3ML...

hide quoted sections

Dear Kevin,

Please find attached the response from GNS Science to your Official Information Act request transferred in part by NIWA.

Anna Jellie (she/her)
General Counsel
GNS Science Te Pῡ Ao
D +64 4 570 4736
1 Fairway Drive, Avalon
Lower Hutt, New Zealand
http://www.gns.cri.nz/

This email may contain legally privileged information. No privilege is waived or lost by any mistransmission.

-----Original Message-----
From: Sarah Fraser <[email address]>
Sent: Wednesday, August 14, 2024 4:13 PM
To: [FOI #27723 email]
Subject: RE: Official Information request - Sea Level measuring equipment in Buller

Kia ora Kevin

We have transferred part of your request to GNS as the information to which your request relates, namely the last question relating to vertical rise, is not held by us but is believed to be held by is believed to be more closely connected with the functions of GNS.

In these circumstances, we are required by section 14 of the OIA to transfer your request.

You will hear further from GNS concerning that part of your request.

Ngā mihi
Sarah

-----Original Message-----
From: Sarah Fraser
Sent: Monday, July 22, 2024 11:00 AM
To: [FOI #27723 email]
Subject: FW: Official Information request - Sea Level measuring equipment in Buller

Kia ora Kevin

Thank you for your email. We acknowledge receipt of your OIA request below.

We will respond as soon as possible and no later than Monday 19 August 2024, being 20 working days after the day your request was received. If we are unable to respond to your request by then, we will notify you of an extension of that timeframe.

Ngā mihi
Sarah

-----Original Message-----
From: Kevin Smith <[FOI #27723 email]>
Sent: Friday, July 19, 2024 12:03 PM
To: Enquiries <[email address]>
Subject: Official Information request - Sea Level measuring equipment in Buller

Dear National Institute of Water and Atmospheric Research Limited,

A sea level buoy has recently been deployed in Westport.

I am requesting correspondence about the level measuring equipment that was used for previous recordings.

The chart at the beginning of the recent publication 'West Coast Region Coastal Hazards mapping methodology shows plots for Charleston and Westport.
This NIWA and WCRC booklet is dated 29 April 2024.

Could you please provide copies of the correspondence pertaining to those two sites ?

I am seeking info on the data gathering, site maintenance, site calibrations and the compensation methods applied.
ie, How the data was obtained, how it was checked and then what atmospheric and sea pressures, temperatures and tidal factors were subsequently applied.

The same document refers to LiDAR measurements.

Could you please advise what vertical changes have been detected in the Buller coastal region over the past decades ?

I have heard from a local surveyor that a rise in ground level has been recorded.
This would be by a number of measuring techniques so I am interested in the rate of rise and the method used.

Yours faithfully,

Kevin Smith

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

This is an Official Information request made via the FYI website.

Please use this email address for all replies to this request:
[FOI #27723 email]

Is [NIWA request email] the wrong address for Official Information requests to National Institute of Water and Atmospheric Research Limited? If so, please contact us using this form:
https://fyi.org.nz/change_request/new?bo...

Disclaimer: This message and any reply that you make will be published on the internet. Our privacy and copyright policies:
https://fyi.org.nz/help/officers

If you find this service useful as an Official Information officer, please ask your web manager to link to us from your organisation's OIA or LGOIMA page.

-------------------------------------------------------------------
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.

hide quoted sections