=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 2003Jan17 :
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.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 2003Jan17 :
New data from John Hannah was for Auckland II, Dunedin II, Lyttelton II and Wellington II.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 17-OCT-05 :
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).
=========================== BENCHMARK INFORMATION UPDATE ADDED  12-JUL-93 :
Port Nelson         690/071 RLR(1987) is 10.5m below BM N1
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 01-Oct-2008 :
Full dataset for Nelson 1984-2007 received from Glen Rowe at LINZ 01/10/08.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 18-Oct-2010 :
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
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 13-Jul-2016 :
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.

