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
Revised data received from Glen Rowe at LINZ data span 1987-2007. Previous data for 1994 from database copied data replaced with revised dataset.
Documentation added 2010-10-18
Following correspondence with Glen Rowe it was confirmed that the datum at Timaru has been as follows: Pre 1976 TGZ =5.301m below benchmark UD 44 Post 1976 TGZ =5.286m below UD 44 Previous benchmark UD 42 is 0.466m above UD 44
Documentation added 2018-06-28
The Kaikoura earthquake of 23:02 on the 13 November 2016 impacted on a number of stations in the central part of New Zealand. Because of this the hourly height values for several stations from 14th November 00:00hrs have been adjusted by LINZ. For station Timaru the adjust is -0.008m.
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.
Documentation added 2020-10-13
Benchmark UD44 has been destroyed, so UD42 is now the primary benchmark again
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