Station Information

Station ID: 333
Latitude: 22.3
Longitude: 114.2
Coastline code: 611
Station code: 11
Country: HONG KONG
Time span of data: 1929 – 1985
Completeness (%): 64
Link to ellipsoid: Available
Date of last update: 01 Jan 1980

Green Arrow: Current Station
Yellow Marker: Neighbouring RLR Station
Red Marker: Neighbouring Metric Station

Please note: In many cases, the station position in our database is accurate to only one minute. Thus, the tide gauge may not appear to be on the coast.

Additional Data Sources (guide to additional data sources)

Nearby GNSS Stations from SONEL: HKQT, HKSC, HKOH
Nearby Real Time Stations from VLIZ: quar
Fast Delivery Data from UHSLC station 329: hourly and daily
Research Quality Data from UHSLC station 329: hourly and daily

Station Documentation

Link to RLR information.

Documentation - date unknown

Station moved - new data held in station 611/010

Documentation added 1993-07-12

North Point, HK 611/011 RLR(1975) is 11.2m below Rifleman's Bolt

Documentation added 1999-12-03

According to Dr.Baki Iz (Hong Kong Polytechnic University)
reference benchmarks at the North Point and Quarry Bay gauges show
from episodic levelling significant settlement with respect
to neighbouring marks (October 1998). However, data provided for these
sites are conventionally referred to the more stable Principal Datum
and Rifleman's Bolt benchmark by means of frequent levelling.
Note that the North Point and Quarry Bay datums are the same and
their RLR time series may be combined to make one continuous record
if wished with reasonable confidence.

Documentation added 2002-01-09

For an analysis of sea level changes in Hong Kong, see
"Sea level changes in Hong Kong from tide gauge measurements"
by X.Ding et al., Journal of Geodesy, 74, 683-689, 2001 and
"Long-term sea-level changes in Hong Kong from tide-gauge
records" by X.Ding et al., Journal of Coastal Research,
17, 749-754, 2001.
1929-1930 Gauge sited at 22 17 N 114 13 E
1949 Gauge installed at Aresenal Yard on 26th October
1952 Gauge transferred to North Point on 23rd October
Replaced by Quarry Bay (611/010) after 1985

Data Authority

Port Works Division
4 - 5/f, Civil Engineering Building
101 Princess Margaret Road