=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 11-Jun-1991
Gisborne            690/008 RLR(1986) is 9.8m below BM GBI
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 12-Jul-1993
Gisborne            690/008 RLR(1986) is 9.8m below BM GBI
Gisborne is an historic station. Last data 1991
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 17-Jan-2003
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 17-Jan-2003
New data from John Hannah was for Auckland II, Dunedin II,
Lyttelton II and Wellington II.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 17-Oct-2005
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).
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 07-Aug-2013
The tide gauge at Gisborne is once again operational. LINZ have confirmed the datum remains the same.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 02-Sep-2014
Following the re-instatment of the tide gauge the supplying authority has been changed from Hydrographic Office, Royal New Zealand Navy to LINZ.
=========================== FOLLOWING PSMSL DOCUMENTATION ADDED 23-Aug-2021
A revised copy of the New Zealand data values for station Gisborne has been received from the data supplier the Land Information New Zealand (LINZ). The revised dataset begins in 2007. This exercise has been carried out to correct some anomalies with the high frequency data.