NELSON

Documentation added 1993-07-12

Port Nelson 690/071 RLR(1987) is 10.5m below BM N1

Documentation added 2003-01-17

New data from John Hannah added 17/01/03 which supercedes old data. New data does not have any missing days information. Old data has been backed up.

Documentation added 2003-01-17

New data from John Hannah was for Auckland II, Dunedin II, Lyttelton II and Wellington II.

Documentation added 2005-10-17

There is a new John Hannah paper referring to New Zealand data for Wellington, Dunedin, Lyttelton and Auckland. The reference is: "An updated analysis of long-term sea level change in New Zealand." Geophysical Research Letters, V31, L03307, doi:10.1029/2003GL019166 (2004).

Documentation added 2008-10-01

Full dataset for Nelson 1984-2007 received from Glen Rowe at LINZ 01/10/08.

Documentation added 2010-10-18

From information received from Glen Rowe at Linz the datum history is as follows: Up to 1994 TGZ was 5.773m below N1 From 1994 TGZ is 5.775m below N1

Documentation added 2016-07-13

PSMSL has queried the apparent 'jump' in the Nelson dataset between the data for 2012/2013. However, enquiries by LINZ to the cause of this have been inconclusive.

Documentation added 2018-06-28

The Kaikoura earthquake at 23:02 on 13th November 2016 impacted on a number of stations in the central part of New Zealand. Because of this the hourly values for several stations from 14th November 00:00hrs have been adjusted by LINZ. For station Nelson the adjustment is -0.021m.

Documentation added 2020-08-25

The adjustment due to the Kaikōura earthquake of 2016 has been removed as relative sea level series should include land movement. LINZ now estimate the land movement to be -0.039m