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