Monitoring the sea level
Sea-level monitoring station at Charleston (west coast).
NIWA coordinates a network of 20 open coast sea-level recorders around New Zealand, including the Chatham Islands, and Antarctica (Scott Base). The recorders collect accurate measurements of sea level and tides for monitoring coastal hazards such as storm surge and tsunami, and studying longer-term coastal processes, including El Niño effects and sea-level rise. Data are uploaded nightly and some sites are displayed at www.niwascience.co.nz/services/sealevels.