...
Marlborough managed tide stations are located at:
Motuara Island (-41.093883°, 174.271459°)
Okukari Bay (-41.201612°, 174.311423°)
Te Weka (-41.249400°, 174.192815°)
Port Marlborough maintains a tide station at Waitohe Wharf. It has a radar sensor. Measurements are taken once a minute and reported distributed via NMEA.
Waitohe Wharf (-41.282436°, 174.006476°)
AIS Messages
Stations transmit AIS messages 21 and 8 once every six minutes on each channel, offset by three minutes. Message 21 reports the station name and coordinates. Message 8 reports a composite tide height that considers inputs from both pressure and radar sensors.
...
Motuara Island on port 45060
Okukari Bay on port 45061
Te Weka on port 45062
Waitohe Wharf on port 12029
| Code Block |
|---|
$WIXDR,D,1.148,M,HTIDE,D,0.016,M,SDTID,*6D |
...
More complete data is available for Marlborough-managed tide stations via JSON messages, available on request. Message format is:
...